INDUSTRIAL SOLID WASTE INCINERATOR AND FLUE GAS TREATMENT APPARATUS

Abstract

The present invention discloses an industrial solid waste incinerator and flue gas treatment apparatus, comprising a water-cooled feed hopper, a water-cooled grate and a chamber which are connected in sequence. A front arch, a rear arch and side walls which are formed of membrane water-cooled walls, are provided between the water-cooled grate and the chamber, and a dechlorination tower is arranged behind the chamber. Two sets of rear secondary air pipes, which comprise an upper set of rear secondary air pipes and a lower set of rear secondary air pipes, are arranged on the rear arch, and a dry desulfurization device is arranged between the two sets of rear secondary air pipes, so that the reaction medium and the flue gas are sufficiently disturbed and mixed, and stroke is extended.

Claims

1. An industrial solid waste incinerator and flue gas treatment apparatus, comprising a water-cooled feed hopper, a water-cooled grate and a chamber which are connected in sequence, wherein a front arch, a rear arch and side walls, which are formed of membrane water-cooled walls, are provided between the water-cooled grate and the chamber, a dechlorination tower is arranged behind the chamber, two sets of rear secondary air pipes, which comprises an upper set of rear secondary air pipes and a lower set of rear secondary air pipes, are arranged on the rear arch, a dry desulfurization device is arranged between the two sets of rear secondary air pipes.

2. The industrial solid waste incinerator and flue gas treatment apparatus according to claim 1, wherein the front arch, the rear arch and the side walls are provided with secondary air pipes.

3. The industrial solid waste incinerator and flue gas treatment apparatus according to claim 1, wherein an outlet pipe of the chamber is tangentially connected to a lower part of the dechlorination tower, so that the flue gas at an outlet of the chamber tangentially enters the lower part of the dechlorination tower, and liquid alkali nozzles are arranged on an upper part of the dechlorination tower, tangentially with respect to a circle. Liquid alkali jet and the flue gas swirl flow in reverse directions.

4. The industrial solid waste incinerator and flue gas treatment apparatus according to claim 1, wherein the flue gas at an outlet of the dechlorination tower is sequentially filtered by a primary baghouse and a secondary denitration catalytic fabric filter, and then is discharged through an activated carbon packed tower.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0016] FIG. 1 is a structural schematic diagram of the present disclosure;

[0017] FIG. 2 is a top view of the structure taken along the lines A-A, B-B in FIG. 1 of the present disclosure; and

[0018] FIG. 3 is a structural schematic diagram of a flue gas treatment apparatus of the present disclosure.

[0019] In the figure: 1—water-cooled feed hopper, 2—water-cooled grate, 3—chamber, 4—front arch, 4-1—front secondary air pipe, 5—rear arch, 5-1—rear secondary air pipe, 6—side wall, 6-1—side secondary air pipe, 7—dechlorination tower, 8—dry desulfurization device, 9—liquid alkali nozzle, 10—baghouse, 11—denitration catalytic fabric filter, 12—activated carbon packed tower.

DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Hereinafter, specific embodiments of the present disclosure will be described in detail with reference to the figures. It should be understood that the specific embodiments described herein are only by way of illustration, explanation and not limitation.

[0021] As shown in FIGS. 1 and 2, an industrial solid waste incinerator and flue gas treatment apparatus, comprising a water-cooled feed hopper 1, a water-cooled grate 2 and a chamber 3, wherein the water-cooled feed hopper 1 is arranged at the front of the water-cooled grate 2, a front arch 4, a rear arch 5 and left and right side walls 6 are arranged above the water-cooled grate 2, and the front arch 4, the rear arch 5 and the left and right side walls 6 are formed of membrane water-cooled walls. A dechlorination tower 7 is arranged behind the chamber 3.

[0022] Two sets, i.e. an upper set and a lower set, of front secondary air pipes 4-1 are arranged on the front arch 4. Two sets, i.e. an upper set and a lower set, of rear secondary air pipes 5-1 are arranged on the rear arch 5. The left and right side walls 6 are each provided with a set of side secondary air pipes 6-1. A dry desulfurization device 8 is arranged between the two sets of rear air pipes 5-1.

[0023] The flue gas at an outlet of the chamber 3 tangentially enters a lower part of the dechlorination tower 7. Liquid alkali nozzles 9 are arranged on an upper part of the dechlorination tower, tangentially with respect to a circle. Liquid alkali jet and the flue gas swirl flow in reverse directions.

[0024] As shown in FIG. 3, the flue gas at an outlet of the dechlorination tower 7 is filtered by a primary baghouse 10 and a secondary denitration catalytic fabric filter 11, and then passes through an activated carbon packed tower 12 to absorb the dixon.

[0025] The above embodiments are only used to describe the technical solutions of the present disclosure, but not to limit the present disclosure; although the present disclosure is described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that the technical solutions described in the foregoing embodiments can still be modified or equivalent replacement of some or all of the technical features thereof; These modifications or replacements do not depart from the scope of the technical solutions of the embodiments of the present disclosure.