CN214406921U

CN214406921U - Gangue activation production line

Info

Publication number: CN214406921U
Application number: CN202120370623.3U
Authority: CN
Inventors: 高俊杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-02-11
Filing date: 2021-02-11
Publication date: 2021-10-15
Anticipated expiration: 2031-02-11

Abstract

The utility model relates to a coal gangue activation production line, which comprises a batching system, a feeding system, a kiln body, a distributing system arranged at the top of the kiln body, a discharging system arranged at the bottom of the kiln body, an air blast system arranged at the bottom of the kiln body, a dust removal, desulfurization and pin removal system and an electric control system; the material distribution system comprises a material collecting hopper, a vibrating feeder and a rotary material distributor which are arranged at the top of the kiln body; the discharging system comprises a high-pressure blast cap arranged at the bottom of the kiln body, a plurality of groups of auxiliary furnace bars obliquely arranged on the periphery of the high-pressure blast cap and a discharging car arranged below the high-pressure blast cap and the auxiliary furnace bars, wherein the high-pressure blast cap is in a hollow cone or frustum shape with an opening at the bottom and formed by welding steel pipes, and a plurality of scales obliquely inclined downwards are sequentially welded at the gap between every two adjacent steel pipes from top to bottom; the auxiliary fire bars are formed by welding steel pipes, and a plurality of scales inclined towards the oblique lower side are welded at the gap between every two adjacent steel pipes from top to bottom in sequence.

Description

Gangue activation production line

Technical Field

The utility model relates to a gangue activation production line specifically belongs to gangue treatment facility technical field.

Background

A large amount of coal gangue is generated in the coal mining process, and the coal gangue is generally stacked in the open air, so that the coal gangue occupies the site and causes environmental pollution.

If the coal gangue is utilized, the waste can be changed into valuable, the resource utilization rate is improved, the environment is improved, the cost is reduced, the resource is saved, and the economic benefit is improved.

The utilization method of the coal gangue adopted at present generally comprises the steps of calcining and activating the coal gangue in a kiln and using the coal gangue as a building material or a cement production raw material. The coal gangue activation kiln generally adopts a vertical kiln, the coal gangue is discharged through a discharging system after being calcined, the existing discharging system is suitable for discharging the materials with large particles after being combusted, the discharging effect on the materials with small particles after being combusted is not good, and the materials can leak from gaps on a high-pressure blast cap; in addition, the problems of insufficient combustion of coal gangue, product quality influence, substandard gas emission, low heat efficiency and the like exist, and energy waste is caused. To the above problem, the utility model provides a simple structure, design benefit, the convenient and fast, the gangue activation production line of guaranteeing that the air is clean, calcine fully, the thermal efficiency is high, exhaust gas pollutes for a short time of unloading.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a gangue activation production line that simple structure, design benefit, convenient and fast, the assurance air is clean, calcine abundant, the thermal efficiency is high, exhaust gas pollutes for a short time is provided.

In order to solve the above problems, the utility model adopts the following technical proposal:

a coal gangue activation production line comprises a batching system, a feeding system, a kiln body, a distributing system arranged at the top of the kiln body, a discharging system arranged at the bottom of the kiln body, a blowing system arranged at the bottom of the kiln body, a dedusting, desulfurizing and pin-removing system and an electric control system;

the material distribution system comprises a material collecting hopper, a vibrating feeder and a rotary material distributor which are arranged at the top of the kiln body;

the discharging system comprises a high-pressure blast cap arranged at the bottom of the kiln body, a plurality of groups of auxiliary furnace bars obliquely arranged on the periphery of the high-pressure blast cap and a discharging car arranged below the high-pressure blast cap and the auxiliary furnace bars, wherein the high-pressure blast cap is in a hollow cone or frustum shape with an opening at the bottom and formed by welding steel pipes, and a plurality of scales obliquely inclined downwards are sequentially welded at the gap between every two adjacent steel pipes from top to bottom; the auxiliary fire bar is formed by welding a plurality of steel pipes, and a plurality of scales inclined towards the lower oblique direction are sequentially welded at the gap between every two adjacent steel pipes from top to bottom;

the blowing system comprises a blower and a blast pipe, wherein the blowing end of the blast pipe is positioned in the high-pressure blast cap, and the blast pipe blows air outwards through gaps between the steel pipe and the scales;

the dedusting, desulfurization and denitration system comprises a spray pipe, a first water pump and an ammonia water tank which are sequentially connected through a water delivery pipe, and the spray pipe is arranged at the top of the kiln body; the kiln body is characterized by further comprising a cyclone dust collector, a bag-type dust collector, an induced draft fan and a desulfurizing tower which are sequentially connected through a smoke exhaust pipe, wherein the smoke exhaust pipe is arranged at the top of the kiln body.

As a further improvement, every side of high-pressure blast cap evenly is provided with many steel pipes that are parallel to each other, steel pipe and high-pressure blast cap base mutually perpendicular set up.

As a further improvement, the auxiliary furnace bar comprises a plurality of steel pipes which are arranged in parallel, and the steel pipes are arranged perpendicular to the bottom edge of the high-pressure blast cap.

As a further improvement, the upper ends of a plurality of steel pipes in the auxiliary furnace bars are fixedly arranged on the base of the kiln body, the lower ends of the steel pipes are fixedly connected with the connecting pipe, and two side plates are fixedly arranged at the two ends of the connecting pipe.

As the utility model discloses a further improvement, the dummy car includes pull rod axle and stripper, the pull rod axle right-hand member links to each other with the stripper through fixed cover, and the left end passes through the connector and links to each other with the eccentric wheel that sets firmly in the pivot, the pivot passes through the shaft coupling with servo motor's output shaft and links to each other, slidable cover is equipped with the seal cover on the pull rod axle, the seal cover set firmly in on the kiln body, the dummy car bottom is provided with the leading wheel, the dummy car bottom be provided with the corresponding guide rail of leading wheel.

As a further improvement, the stripper is fixed together by the steel sheet right-hand member parallel and level that three or four pieces of length are different, the stripper width and two interval looks adaptation between the curb plate.

As a further improvement, the seal cover includes the barrel and spiro union in the rubber big envelope and the flange big envelope of its both sides, be equipped with the annular oil immersion groove of a plurality of on the barrel inner wall, be equipped with on the barrel one with the oil filler point that oil immersion groove communicates mutually, the flange big envelope set firmly in on the kiln door of the kiln body.

As a further improvement, the high-pressure hood is rectangular pyramid or rectangular terrace with edge shape, the auxiliary fire bars are equipped with four groups, the dummy car is equipped with four, there is the difference in height that prevents mutual interference two dummy cars of high-pressure hood fore-and-aft direction and two dummy cars of left and right directions.

As a further improvement, the guide rail sets firmly on the mounting bracket, and there is the difference in height guide rail that two dumpers of fore-and-aft direction correspond and the guide rail that two dumpers of left right direction correspond.

As a further improvement, the high-pressure blast cap below is equipped with the support frame, the support frame sets up on the mounting bracket through a plurality of even support columns that set up, the mounting bracket sets firmly the play hopper top of kiln body bottom.

Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:

the utility model provides a discharge system simple structure, design benefit, it is effectual to unload to the little material of burning back granule, the material from kiln body top calcine after the activation fall on the high-pressure hood, through the scale direction fall between high-pressure hood and the auxiliary furnace strip, can not follow the clearance between the steel pipe and fall, the convenient and fast of unloading has improved work efficiency and product quality greatly. The materials are collected through the two air locking valves, so that the materials are effectively prevented from being lifted, and the air cleanness of the working environment is ensured.

The air blower in the air blowing system sends outside air into the kiln body from the lower part of the kiln to cool materials, and the temperature of the combustion-supporting air passing through the cooling zone is increased to reach the calcining zone, so that the coal gangue is better calcined, and the thermal efficiency of the kiln can reach a higher level.

The material distributing system comprises a collecting hopper, a vibrating feeder and a rotary distributor which are arranged at the top of the kiln body, after materials in the skip car are poured into the collecting hopper, the materials are fed into the rotary distributor through the vibrating feeder, the materials are distributed uniformly, and the materials are fully calcined.

The dust removal, desulfurization and denitration operation are carried out through the dust removal, desulfurization and denitration system, and the pollution of the exhaust gas to the atmosphere is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of the activation production line of the present invention.

Fig. 2 is a partially enlarged schematic view of a portion a in fig. 1.

Fig. 3 is a partially enlarged schematic view of part B of fig. 2.

Fig. 4 is a schematic view of the top view structure of the medium discharging system without adding scales.

Fig. 5 is a schematic top view of the high pressure blast cap and the auxiliary grate bar of the present invention without scales.

Fig. 6 is a schematic view of the structure of the medium-high pressure hood of the present invention without scales.

Fig. 7 is a schematic view of the structure of the medium-high pressure hood with scales.

Fig. 8 is a schematic structural view of the discharging car of the present invention.

Fig. 9 is a schematic structural diagram of the middle sealing sleeve of the present invention.

Wherein: 1 base, 2 two sections of air locking valves, 3 discharge hoppers, 4 high-pressure air caps, 4-1 steel pipes, 4-2 scales, 5 auxiliary fire bars, 6 support frames, 7 support columns, 8 mounting frames, 9 guide rails, 10 discharge trucks, 10-1 servo motors, 10-2 rotating shafts, 10-3 eccentric wheels, 10-4 connectors, 10-5 pull rod shafts, 10-6 sealing sleeves, 10-6-1 barrel bodies, 10-6-2 oil injection holes, 10-6-3 oil immersion tanks, 10-6-4 rubber sealing sleeves, 10-6-5 flange sealing sleeves, 10-7 fixing sleeves, 10-8 discharge plates, 11 air blowers, 12 blast pipes, 13 side plates, 14 connecting pipes, 15 kiln bodies, 16 detection platforms, 17 feeding oblique bridges, 17-1 oblique bridge seals, 18 machines, 19 hoisting trucks, 17 air blowing pipes, and the like, 20 proportioning bins, 21 weighing hoppers, 22 inclined bridge top shields, 23 collecting hoppers, 24 straight-discharge smoke pipes, 25 spray pipes, 26 water conveying pipes, 27 water pumps I, 28 ammonia tanks, 29 smoke exhaust pipes, 30 cyclone dust collectors, 31 bag dust collectors, 32 induced draft fans, 33 desulfurizing towers, 34 water pumps II, 35 circulating water pools and 35 lye tanks.

Detailed Description

To make the objects, aspects and advantages of the present invention clearer, and in accordance with the following detailed description of certain embodiments of the present invention, it is to be understood that the terms "center," "vertical," "horizontal," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship shown in the accompanying drawings, which are used for convenience of description and simplicity of illustration, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

As shown in fig. 1-9, the coal gangue activation production line includes a batching system, a feeding system, a kiln body 15, a distributing system arranged on the top of the kiln body 15, a discharging system arranged on the bottom of the kiln body 15, a blowing system arranged on the bottom of the kiln body 15, a dedusting, desulfurizing and denitration system and an electric control system;

the batching system comprises a batching bin 20 and a weighing hopper 21, and the coal gangue is vibrated into the weighing hopper 21 by a vibration feeder;

the feeding system comprises a feeding inclined bridge 17, a winch 18 and a skip car 19, after the skip car 19 reaches the bottom of the feeding inclined bridge 17, a weighing hopper 21 opens a switch door, coal gangue enters the skip car 19, and the winch 18 transports the skip car 19 to the top of the kiln body 15. An inclined bridge seal 17-1 is arranged on the feeding inclined bridge 17, and an inclined bridge top shield 22 is arranged at the top of the inclined bridge;

the distributing system comprises a collecting hopper 23, a vibrating feeder and a rotary distributor which are arranged at the top of the kiln body 15, and after the materials in the skip car 19 are poured into the collecting hopper 23, the materials are fed into the rotary distributor through the vibrating feeder, and the coal gangue is uniformly distributed into the kiln body 15;

the discharging system comprises a high-pressure blast cap 4 arranged at the bottom of a kiln body 15, a plurality of groups of auxiliary fire bars 5 obliquely arranged on the periphery of the high-pressure blast cap 4 and a discharging car 10 arranged below the high-pressure blast cap 4 and the auxiliary fire bars 5, wherein the high-pressure blast cap 4 is in a hollow cone or frustum shape with an opening at the bottom surface and formed by welding steel pipes 4-1, and a plurality of scales 4-2 which are obliquely inclined downwards are sequentially welded at the gap between every two adjacent steel pipes 4-1 from top to bottom; the auxiliary fire bar 5 is formed by welding a plurality of steel pipes 4-1, and a plurality of scales 4-2 inclined towards the lower oblique direction are sequentially welded at the gap between every two adjacent steel pipes 4-1 from top to bottom; a plurality of discharging carriages 10 are arranged and are positioned below each group of auxiliary furnace bars 5 and the side surfaces of the corresponding high-pressure blast caps 4; the high-pressure blast cap 4 below is equipped with out hopper 3, 3 bottoms of play hopper are equipped with conveyor, conveyor includes two sections airlock valves 2 and belt feeder, and the material falls from kiln 15 top between high-pressure blast cap 4 and the auxiliary furnace strip 5, through the dummy car 10 unloads on the play hopper 3, unloads on the belt feeder through two sections airlock valves 2, carries the material canopy.

The blowing system comprises a blower 11 and a blowing pipe 12, wherein the blowing end of the blowing pipe 12 is positioned in the high-pressure blast cap 4, and the blowing pipe blows air outwards through gaps between the steel pipe 4-1 and the scales 4-2; the outer air is sent into the kiln body 15 from the lower part of the kiln by the Roots blower to cool the materials, and the temperature of the combustion-supporting air passing through the cooling zone is increased and reaches the calcining zone, thus being beneficial to better calcining the coal gangue;

the dedusting, desulfurization and denitration system comprises a spray pipe 25, a first water pump 27 and an ammonia water tank 28 which are sequentially connected through a water delivery pipe 26, wherein the spray pipe 25 is arranged at the top of the kiln body 15, directly sprays reducing agent ammonia water or urea into the kiln body 15, reacts with NOx, reduces the NOx into N2, reduces the emission concentration of the NOx and performs denitration; the kiln further comprises a cyclone dust collector 30, a bag-type dust collector 31, an induced draft fan 32 and a desulfurizing tower 33 which are sequentially connected through a smoke exhaust pipe 29, wherein the smoke exhaust pipe 29 is arranged at the top of the kiln body 15; the desulfurizing tower 33 is connected with a circulating water pool 35 through a second water pump 34, and the circulating water pool 35 is connected with an alkali liquor tank 36; the flue gas passes through a smoke exhaust pipe 29 at the top of the kiln body 15 to a cyclone dust collector 30 to remove large-particle dust; then enters a bag-type dust collector 31 to remove small-particle dust; the alkali liquor enters the desulfurizing tower 33, rises in a rotating mode at a specific flow speed, angle and direction, is in countercurrent contact with alkaline absorption liquid sprayed by a water distribution device arranged at the top of the desulfurizing tower 33 and connected with a circulating water tank 35, is repeatedly rotated and collided to atomize the humidity of the liquid, removes sulfides in the flue gas, empties the clean flue gas through a chimney, and the absorbed alkali liquor enters the bottom of the desulfurizing tower 33, is discharged into the circulating water tank 35, is precipitated and is recycled. The first water pump 27 and the second water pump 34 are acid and alkali resistant water pumps. The dust removal, desulfurization and denitration operation are carried out through the dust removal, desulfurization and denitration system, so that the pollution of the exhaust gas to the atmosphere is greatly reduced.

The electric control system adopts a German Siemens computer control system, and is a full-automatic production line, so that the cost is saved, and the product quality is stable.

In the embodiment, the discharging system is simple in structure and ingenious in design, discharging effect on materials with small particles after combustion is good, the materials fall between the high-pressure blast cap 4 and the auxiliary furnace bar 5 through the guide of the scale 4-2 after being calcined and activated from the upper part of the kiln body and fall onto the high-pressure blast cap 4, the materials cannot fall from a gap between the steel pipes 4-1, discharging is convenient and fast, and working efficiency and product quality are greatly improved. The materials are collected through the two air locking valves 2, so that the materials are effectively prevented from being lifted, and the air cleanness of the working environment is ensured.

And a plurality of steel pipes 4-1 which are parallel to each other are uniformly arranged on each side surface of the high-pressure blast cap 4, and the steel pipes 4-1 and the bottom edge of the high-pressure blast cap 4 are vertical to each other. The auxiliary fire bars 5 comprise a plurality of steel pipes 4-1 which are arranged in parallel, and the bottom edges of the steel pipes 4-1 and the high-pressure blast caps 4 are arranged in a mutually perpendicular mode. The side structures corresponding to the auxiliary fire bars 5 and the high-pressure blast caps 4 are V-shaped, a blanking port is formed at the bottom and is positioned above the discharging hopper 3 arranged below, and the discharging car 10 is positioned at the blanking port.

The discharging car 10 comprises a pull rod shaft 10-5 and a discharging plate 10-8, the right end of the pull rod shaft 10-5 is connected with the discharging plate 10-8 through a fixing sleeve 10-7, the left end of the pull rod shaft is connected with an eccentric wheel 10-3 fixedly arranged on a rotating shaft 10-2 through a connector 10-4, the rotating shaft 10-2 is connected with an output shaft of a servo motor 10-1 through a coupler, a sealing sleeve 10-6 is slidably arranged on the pull rod shaft 10-5 in a sleeved mode, the sealing sleeve 10-6 is fixedly arranged on a kiln body 15, a guide wheel is arranged at the bottom of the discharging car 10, and a guide rail 9 corresponding to the guide wheel is arranged at the bottom of the discharging car 10.

The upper ends of a plurality of steel pipes 4-1 in the auxiliary furnace bars 5 are fixedly arranged on the base 1 of the kiln body 15, the lower ends of the steel pipes are fixedly connected with a connecting pipe 14, and two side plates 13 are fixedly arranged at two ends of the connecting pipe 14. The discharging plate 10-8 is fixedly arranged at the right ends of three or four steel plates with different lengths in a flush mode, and when the discharging plate 10-8 is pulled out by the servo motor 10-1, materials can be pulled out from the lower portion of the auxiliary fire bar 5 and fall into the discharging hopper 3. The width of the discharging plate 10-8 is matched with the distance between the two side plates 13, and the side plates 13 can play a role in guiding and limiting the discharging plate 10-8.

The sealing sleeve 10-6 comprises a cylinder 10-6-1, and a rubber sleeve 10-6-4 and a flange sleeve 10-6-5 which are screwed on two sides of the cylinder, wherein a plurality of annular oil immersion tanks 10-6-3 are arranged on the inner wall of the cylinder 10-6-1, an oil filling hole 10-6-2 communicated with the oil immersion tanks 10-6-3 is arranged on the cylinder 10-6-1, and the flange sleeve 10-6-5 is fixedly arranged on a kiln door of the kiln body 15. An oil cup is arranged at the position of the oil filling hole 10-6-2, the rubber sleeve 10-6-4 is positioned at the outer side and sealed by adopting dust prevention, and the flange plate sleeve 10-6-5 is positioned at the inner side and sealed by adopting high temperature resistance.

In this embodiment, the high-pressure hood 4 is a rectangular pyramid or a rectangular frustum pyramid, the auxiliary fire bars 5 are provided with four groups, the trippers 10 are provided with four groups, the height difference for preventing mutual interference exists between the two trippers 10 in the front-back direction and the two trippers 10 in the left-right direction of the high-pressure hood 4, and the four trippers 10 can run simultaneously. 4 below of high-pressure hood are equipped with support frame 6, support frame 6 sets up on mounting bracket 8 through a plurality of support columns 7 that evenly set up, mounting bracket 8 sets firmly the play hopper 3 top of the 15 bottoms of the kiln body. The guide rails 9 are fixedly arranged on the mounting frame 8, height differences exist between the guide rails 9 corresponding to the two dumpers 10 in the front-back direction and the guide rails 9 corresponding to the two dumpers 10 in the left-right direction, so that the two dumpers 10 in the front-back direction and the stripper plates 10-8 of the two dumpers 10 in the left-right direction are staggered up and down, and interference is prevented in the running process of the dumpers 10.

The kiln body 15 is divided into 3 regions from top to bottom: a preheating zone, a calcining zone and a cooling zone. In the calcining process in the kiln body 15, the air blower 12 blows air into the kiln body 15 to assist combustion, high-temperature flue gas generated by calcining firstly rises through the raw material which just enters the upper part of the kiln body 15 to preheat the raw material, and finally reaches the standard after being subjected to dust removal, desulfurization and denitration by the dust removal, desulfurization and denitration system and is discharged into the atmosphere under the action of the draught fan 32. The preheating zone and the cooling zone are both heat exchange zones, the gas temperature in the preheating zone is too high, the heat is transferred to the material (coal gangue) with low temperature, the material temperature in the cooling zone is high, and the heat is transferred to the gas (air) with low temperature, so that the heat efficiency of the kiln can reach a higher level.

The kiln body 15 is greatly improved in kiln type and structure. The mechanical air supply mode is adopted in the aspects of oxygen supply and air supply, so that the oxygen supply amount in the kiln body 15 is increased, the calcining speed in the kiln body 15 is accelerated, the production is accelerated, and the yield is greatly increased. Structurally, the design is novel vase kiln inner bag structure. On one hand, the utility model is beneficial to air supply and smoother air supply, and increases the speed of combustion oxygen supply, thereby accelerating the production process and improving the yield. On the other hand, the kiln diameter of the middle calcining zone is increased, so that the burning area of the raw materials is continuously increased in the descending process, the direction of the materials is continuously changed in the descending process, the heating of the coal gangue is more uniform, the heat exchange between the materials and the temperature of the rising air is facilitated, the utilization rate in the burning process is effectively improved, the uniform roasting is achieved, and the qualified rate is more than 90%.

The kiln type is additionally provided with a plurality of layers of heat insulation materials in the aspect of heat insulation. The heat-insulating brick comprises a refractory brick with the thickness of 345mm, a red brick with the thickness of 240mm, an aluminum silicate rock wool heat-insulating layer with the thickness of 5 centimeters and a filler heat-insulating layer from inside to outside in sequence, and the heat consumption is reduced to the lowest. The unique design size of the kiln body 15 is combined, so that the most effective heat preservation effect is achieved by utilizing the heat value, and a large amount of heat energy is saved.

A new air supply system is developed in the aspect of combustion air supply, an air blower system is arranged at the bottom, air supply and oxygen supply in the kiln body 15 are adjusted according to the set air quantity and data provided by the temperature monitoring system, the effect of adjusting the calcining process is achieved, the problems of partial burning, coking, edge refining and core drawing are solved, the production process is more stable, and the stability and the yield of production are improved.

The kiln body 15 is also provided with a detection platform 16 at the outside and a straight-line chimney 24 at the top for use during initial ignition.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been 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 may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention.

Claims

1. A coal gangue activation production line is characterized in that: the system comprises a batching system, a feeding system, a kiln body (15), a distributing system arranged at the top of the kiln body (15), a discharging system arranged at the bottom of the kiln body (15), a blowing system arranged at the bottom of the kiln body (15), a dedusting, desulfurizing and pin-removing system and an electric control system;

the material distribution system comprises a material collecting hopper (23) arranged at the top of the kiln body (15), a vibrating feeder and a rotary distributor;

the discharging system comprises a high-pressure blast cap (4) arranged at the bottom of a kiln body (15), a plurality of groups of auxiliary fire bars (5) obliquely arranged on the periphery of the high-pressure blast cap (4) and a discharging car (10) arranged below the high-pressure blast cap (4) and the auxiliary fire bars (5), the high-pressure blast cap (4) is in a hollow cone or frustum shape with an open bottom and formed by welding steel pipes (4-1), and a plurality of scales (4-2) inclined towards the oblique lower side are sequentially welded at a gap between every two adjacent steel pipes (4-1) from top to bottom; the auxiliary fire bars (5) are formed by welding a plurality of steel pipes (4-1), and a plurality of scales (4-2) inclined towards the lower oblique direction are sequentially welded at the gap between every two adjacent steel pipes (4-1) from top to bottom;

the blowing system comprises a blower (11) and a blowing pipe (12), wherein the blowing end of the blowing pipe (12) is positioned in the high-pressure blast cap (4) and blows air outwards through a gap between the steel pipe (4-1) and the scale (4-2);

the dedusting, desulfurizing and denitration system comprises a spray pipe (25), a first water pump (27) and an ammonia water tank (28) which are sequentially connected through a water delivery pipe (26), wherein the spray pipe (25) is arranged at the top of the kiln body (15); still include cyclone (30), sack cleaner (31), draught fan (32) and desulfurizing tower (33) that link to each other in proper order through tub (29) of discharging fume, tub (29) of discharging fume sets up at kiln body (15) top.

2. The coal gangue activation production line of claim 1, characterized in that: each side surface of the high-pressure blast cap (4) is uniformly provided with a plurality of steel pipes (4-1) which are parallel to each other, and the steel pipes (4-1) are perpendicular to the bottom edge of the high-pressure blast cap (4).

3. The coal gangue activation production line of claim 1, characterized in that: the auxiliary furnace bar (5) comprises a plurality of steel pipes (4-1) which are arranged in parallel, and the steel pipes (4-1) and the bottom edge of the high-pressure blast cap (4) are arranged in a mutually perpendicular mode.

4. The coal gangue activation production line of claim 3, characterized in that: the upper ends of a plurality of steel pipes (4-1) in the auxiliary furnace bars (5) are fixedly arranged on the base (1) of the kiln body (15), the lower ends of the steel pipes are fixedly connected with a connecting pipe (14), and two side plates (13) are fixedly arranged at two ends of the connecting pipe (14).

5. The coal gangue activation production line of claim 4, characterized in that: the discharging car (10) comprises a pull rod shaft (10-5) and a discharging plate (10-8), the right end of the pull rod shaft (10-5) is connected with the discharging plate (10-8) through a fixing sleeve (10-7), the left end of the pull rod shaft is connected with an eccentric wheel (10-3) fixedly arranged on a rotating shaft (10-2) through a connector (10-4), the rotating shaft (10-2) is connected with an output shaft of a servo motor (10-1) through a coupler, a sealing sleeve (10-6) is slidably sleeved on the pull rod shaft (10-5), the sealing sleeve (10-6) is fixedly arranged on the kiln body (15), a guide wheel is arranged at the bottom of the discharging car (10), and a guide rail (9) corresponding to the guide wheel is arranged at the bottom of the discharging car (10).

6. The coal gangue activation production line of claim 5, characterized in that: the discharging plates (10-8) are fixedly arranged together in a flush manner by the right ends of three or four steel plates with different lengths, and the width of the discharging plates (10-8) is matched with the distance between the two side plates (13).

7. The coal gangue activation production line of claim 5, characterized in that: the sealing sleeve (10-6) comprises a cylinder body (10-6-1), a rubber sleeve (10-6-4) and a flange plate sleeve (10-6-5) which are screwed on two sides of the cylinder body, a plurality of annular oil immersion tanks (10-6-3) are arranged on the inner wall of the cylinder body (10-6-1), oil filling holes (10-6-2) communicated with the oil immersion tanks (10-6-3) are arranged on the cylinder body (10-6-1), and the flange plate sleeve (10-6-5) is fixedly arranged on a kiln door of the kiln body (15).

8. The coal gangue activation production line of claim 5, characterized in that: the high-pressure blast caps (4) are in a rectangular pyramid shape or a rectangular frustum pyramid shape, four sets of auxiliary furnace bars (5) are arranged, four sets of dummy cars (10) are arranged, and height differences for preventing mutual interference exist between the two dummy cars (10) in the front-back direction and the two dummy cars (10) in the left-right direction of the high-pressure blast caps (4).

9. The coal gangue activation production line of claim 8, characterized in that: the guide rail (9) is fixedly arranged on the mounting rack (8), and the guide rail (9) corresponding to the two dumpers (10) in the front-back direction and the guide rail (9) corresponding to the two dumpers (10) in the left-right direction have height difference.

10. The coal gangue activation production line of claim 1, characterized in that: high-pressure blast cap (4) below is equipped with support frame (6), support frame (6) set up on mounting bracket (8) through support column (7) of a plurality of even settings, mounting bracket (8) set firmly the play hopper (3) top of the kiln body (15) bottom.