A porous and easy water soluble amorphous silica which does not contain tar, crystal, residual agrichemicals, and carcinogens, and method and apparatus to produce same, by using only one burning treatment from a plant including abundant silica, including a method of manufacturing the amorphous silica wherein rice family plants are burned while stirring and introducing into the furnace an atmospheric gas having a mass of 6.7 or more and 20 or less of the weight of the rice family plants, or oxygen gas having a weight of 1.4 or more and 4 or less with respect to the weight of the rice family plants, and at the same time as burning, combustion gas generated at the time of combustion is discharged.

A porous and easy water soluble amorphous silica which does not contain tar, crystal, residual agrichemicals, and carcinogens, and method and apparatus to produce same, by using only one burning treatment from a plant including abundant silica, including a method of manufacturing the amorphous silica wherein rice family plants are burned while stirring and introducing into the furnace an atmospheric gas having a mass of 6.7 or more and 20 or less of the weight of the rice family plants, or oxygen gas having a weight of 1.4 or more and 4 or less with respect to the weight of the rice family plants, and at the same time as burning, combustion gas generated at the time of combustion is discharged.

This application discloses a cathode material drying device and a cathode material drying production line. The cathode material drying device includes: a rotary kiln, where a kiln head and a kiln tail of the rotary kiln each are provided with a sealing structure and the rotary kiln can rotate relative to the sealing structure; and an exhaust system comprising an air inlet pipe, an air outlet pipe, and a first fan, where the air inlet pipe communicates with the kiln tail of the rotary kiln through the sealing structure; the air outlet pipe communicates with the kiln head of the rotary kiln through the sealing structure; and the first fan is arranged on the air inlet pipe and/or the air outlet pipe, so as to make an air flow direction in the rotary kiln opposite to a delivery direction of a cathode material.

This application discloses a cathode material drying device and a cathode material drying production line. The cathode material drying device includes: a rotary kiln, where a kiln head and a kiln tail of the rotary kiln each are provided with a sealing structure and the rotary kiln can rotate relative to the sealing structure; and an exhaust system comprising an air inlet pipe, an air outlet pipe, and a first fan, where the air inlet pipe communicates with the kiln tail of the rotary kiln through the sealing structure; the air outlet pipe communicates with the kiln head of the rotary kiln through the sealing structure; and the first fan is arranged on the air inlet pipe and/or the air outlet pipe, so as to make an air flow direction in the rotary kiln opposite to a delivery direction of a cathode material.

A rotary furnace comprises a roller (2), a feeding end of the roller (2) being higher than a discharge end of the roller (2), and also comprises: a feeding device (1), communicated with the feeding end of the roller (2) in a way of rotary seal; a discharge device (6), communicated with the discharge end of the roller (2) in a way of rotary seal; a driving device, arranged outside the roller (2) and used for driving the roller (2) to make reciprocating oscillation around the rotating axis thereof; a support device, arranged outside the roller (2) and used for rotating and supporting the roller (2); a control device, connected to the driving device by a lead and used for controlling the radian of the reciprocating oscillation of the roller (2). A roller (2) only oscillates at a certain radian and does not rotate along the single direction, such that a device or a pipeline used for fabrication processing can be arranged on the outer wall of the roller (2); and furthermore, the oscillation of the roller (2) is not limited, which is beneficial to the treatment such as heating, cooling and reacting for materials.

A porous and easy water soluble amorphous silica which does not contain tar, crystal, residual agrichemicals, and carcinogens, and method and apparatus to produce same, by using only one burning treatment from a plant including abundant silica, including a method of manufacturing the amorphous silica wherein rice family plants are burned while stirring and introducing into the furnace an atmospheric gas having a mass of 6.7 or more and 20 or less of the weight of the rice family plants, or oxygen gas having a weight of 1.4 or more and 4 or less with respect to the weight of the rice family plants, and at the same time as burning, combustion gas generated at the time of combustion is discharged.

A porous and easy water soluble amorphous silica which does not contain tar, crystal, residual agrichemicals, and carcinogens, and method and apparatus to produce same, by using only one burning treatment from a plant including abundant silica, including a method of manufacturing the amorphous silica wherein rice family plants are burned while stirring and introducing into the furnace an atmospheric gas having a mass of 6.7 or more and 20 or less of the weight of the rice family plants, or oxygen gas having a weight of 1.4 or more and 4 or less with respect to the weight of the rice family plants, and at the same time as burning, combustion gas generated at the time of combustion is discharged.

A kiln for firing cement clinker may include a tubular rotary drum that can be rotated about its central axis. The tubular rotary drum may have a discharge end at which the cement clinker leaves the kiln. A protective segment may be attached at the discharge end and may have an outward-facing wear surface and an inward-facing cooling surface. The kiln may include a cooling device for generating a cooling air flow that flows along the inward-facing cooling surface of the protective segment. The inward-facing cooling surface can include profile bodies that are pin-shaped. The profile bodies may be uniformly spaced apart, parallel to one another, and/or present over 20% to 60% of the inward-facing cooling surface.

A coal deactivation processing device includes: a rotary kiln body provided rotatably into which coal and a processing gas are supplied; and a feed pipe provided so as to be able to rotate along with the rotary kiln body, extending along a lengthwise direction of the rotary kiln body, and having a coolant flowing therein. A pair of blades is provided on an outer circumferential section of the feed pipe and protrudes in a radial direction. The feed pipe and the pair of blades are arranged so as to pass through an accumulated coal layer of the coal within the rotary kiln body upon rotation of the rotary kiln body, and such that an angle formed by a tangent of a path along which the central axis of the feed pipe passes and the bisector of the pair of blades is from 0 to 40 degrees.

A coal deactivation processing device includes: a rotary kiln body provided rotatably into which coal and a processing gas are supplied; and a feed pipe provided so as to be able to rotate along with the rotary kiln body, extending along a lengthwise direction of the rotary kiln body, and having a coolant flowing therein. A pair of blades is provided on an outer circumferential section of the feed pipe and protrudes in a radial direction. The feed pipe and the pair of blades are arranged so as to pass through an accumulated coal layer of the coal within the rotary kiln body upon rotation of the rotary kiln body, and such that an angle formed by a tangent of a path along which the central axis of the feed pipe passes and the bisector of the pair of blades is from 0 to 40 degrees.