CN210833109U

CN210833109U - Calcining furnace capable of effectively purifying exhaust flue gas

Info

Publication number: CN210833109U
Application number: CN201921813662.5U
Authority: CN
Inventors: 张嘉诺
Original assignee: Zhangqiu Changdong Forging Co ltd
Current assignee: Zhangqiu Changdong Forging Co ltd
Priority date: 2019-10-25
Filing date: 2019-10-25
Publication date: 2020-06-23
Anticipated expiration: 2029-10-25

Abstract

The utility model relates to a calcining equipment technical field aims at providing an effective burning furnace that forges who discharges flue gas that purifies, and its technical scheme main points are: the flue gas exhaust device comprises a calcining furnace body, wherein a flue gas outlet pipe is arranged at the top of the calcining furnace body, a draught fan is connected to the flange of the flue gas outlet pipe, a flue gas discharge pipe is fixedly connected to an air outlet of the draught fan, a flue gas separator is arranged at the outlet end of the flue gas discharge pipe, an air inlet communicated with the flue gas discharge pipe is formed in the top of the side wall of the flue gas separator, and a clean gas. The bottom of the smoke and gas separator is provided with a dust hopper, a spiral separation mesh belt is arranged in the smoke and gas separator above the dust hopper, a plurality of dust filtering meshes are arranged on the surface of the spiral separation mesh belt, a vertical support rod is arranged at the center of the spiral separation mesh belt, and a support seat supported on the inner side wall of the dust hopper is arranged at the bottom of the vertical support rod. The utility model has the advantages of effectively purifying the flue gas discharged by the furnace body and improving the environmental protection performance of the equipment.

Description

Calcining furnace capable of effectively purifying exhaust flue gas

Technical Field

The utility model relates to a calcining equipment technical field, in particular to effectively purify calcining furnace that discharges flue gas.

Background

A calcining furnace is a thermal equipment for heat treatment of carbon raw materials (such as coke, anthracite and the like) at high temperature to improve the performance of the raw materials. The calcining furnace is also used for iron making, rare metal recovery, catalyst production, environment improvement and special chemical product production.

Chinese patent with publication number CN205537118U discloses a calcining furnace for producing die steel, which comprises a furnace body, wherein a furnace door is arranged on the furnace body, a temperature control display is arranged on the furnace door, a temperature measuring instrument is arranged in the furnace body, and a forward and backward rotating blower is arranged on one side of the furnace body, which is far away from the furnace bottom; heating pipes are arranged on the inner walls of two sides of the furnace body, a supporting frame is arranged at the bottom of the furnace body, and rollers are arranged at the bottom of the supporting frame; the inner layer furnace is detachably connected on the supporting frame. Set up double-deck furnace body structure, through outer stove heating inlayer stove, pull out inlayer stove through gyro wheel slip support frame after calcining the completion, transport to next process.

Although this kind of prior art scheme can be through pulling out the furnace body alone with the inlayer stove, has reduced the direct degree of difficulty of uninstalling the high temperature feed liquid at the fire door of operating personnel, has improved operating personnel security, but high temperature calcination can produce a lot of dusts and form the flue gas in the furnace body in the in-service use process, and a large amount of flue gases directly discharge the furnace body and get into the atmosphere and can cause air pollution. And the prior art scheme can not effectively purify the flue gas. Therefore, further improvements are needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an effectively purify burning furnace that discharges flue gas has the advantage that effectively purifies the furnace body and discharges the flue gas, improve equipment feature ability.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the calcining furnace capable of effectively purifying and discharging the flue gas comprises a calcining furnace body, wherein a flue gas outlet pipe is arranged at the top of the calcining furnace body, a draught fan is connected to the flange of the flue gas outlet pipe, a flue gas discharging pipe is fixedly connected to an air outlet of the draught fan, a flue gas separator is arranged at the outlet end of the flue gas discharging pipe, an air inlet communicated with the flue gas discharging pipe is formed in the top of the side wall of the flue gas separator, and a purified gas discharging pipe is arranged in the middle of.

By adopting the technical scheme, the induced draft fan is started, the flue gas in the furnace body of the calcining furnace is introduced into the flue gas separator through the flue gas discharge pipe, the flue gas realizes the separation of dust particles and air in the flue gas separator, the dust particles are settled and enter the bottom of the flue gas separator, and the purified air is discharged from the clean gas discharge pipe in the middle position of the top of the flue gas separator, so that the effect of effectively purifying the flue gas discharged by the calcining furnace is achieved.

Furthermore, a dust collecting hopper is arranged at the bottom of the smoke-gas separator, a spiral separation mesh belt is arranged inside the smoke-gas separator above the dust collecting hopper, a plurality of dust filtering meshes are formed in the surface of the spiral separation mesh belt, a vertical support rod is arranged at the center of the spiral separation mesh belt, and a support seat supported on the inner side wall of the dust collecting hopper is arranged at the bottom of the vertical support rod.

By adopting the technical scheme, after the flue gas enters the flue gas separator through the flue gas discharge pipe of the calciner body, the flue gas spirally moves downwards along the spiral separation mesh belt, the spirally moving airflow can collide and extrude with the inner side wall of the flue gas separator, the airflow can flow towards the middle under the collision and extrusion of the side wall of the flue gas separator and upwards under the action of central air pressure, the particles separated at the moment continuously move downwards due to the action of gravity, fall down along the dust filtration mesh holes formed on the surface of the spiral separation mesh belt, and finally fall to the dust hopper, so that the separation from the gas is realized, and the effect of separating and purifying the flue gas is achieved; the vertical supporting rod plays a role in continuously supporting the spiral separation mesh belt.

Further, the edge of the spiral separation mesh belt is wrapped with a flexible sealing wrapping edge, and the outer side wall of the flexible sealing wrapping edge is attached to the inner side wall of the smoke-gas separator.

By adopting the technical scheme, the flexible sealing edge wrapping can improve the sealing property between the spiral separation net belt and the side wall of the smoke-gas separator, so that the phenomenon that airflow is split from the gap of the side wall of the smoke-gas separator is reduced, the flowing stability of the airflow along the spiral separation net belt is improved, and the smoke-gas separation effect is further improved.

Furthermore, the port of the purified gas discharge pipe penetrating through the top wall of the smoke-gas separator is fixedly connected with an air guide cover, and the caliber of the air guide cover is larger than that of the port of the purified gas discharge pipe.

Through adopting above-mentioned technical scheme, the bottom bore of induced draft cover is great, can slow down the impact force of purifying back gas, improves the stability of purifying the gas circulation.

Furthermore, a flow guide arc surface is arranged on the outer side wall of the air guide cover.

Through adopting above-mentioned technical scheme, the flue gas flows along the inside wall tangential of gas separator under the water conservancy diversion cambered surface of bleed cover lateral wall to can steadily water conservancy diversion to spiral separation guipure department with the flue gas, improve the flow stability of air current.

Furthermore, the port department of introducing the gas cover is provided with gaseous reposition of redundant personnel subassembly, gaseous reposition of redundant personnel subassembly is including solid fixed ring and set up in the filter screen on solid fixed ring surface.

Through adopting above-mentioned technical scheme, the separation of purified gas process filter screen to play the effect of reposition of redundant personnel buffering purified gas, further reduce the impact of air current to clean gas discharge pipe, improved purified gas exhaust circulation.

Furthermore, the supporting seat comprises a supporting frame attached to the inner wall of the dust hopper, and a plurality of supporting rods fixedly connected to the inner wall of the supporting frame, and all the supporting rods are fixedly connected to the bottom end of the vertical supporting rod at the end part of the supporting frame far away from the direction of the supporting frame.

Through adopting above-mentioned technical scheme, the carriage can laminate stably and support in the dust hopper inside wall, has also improved the efficiency of dismantlement installation simultaneously.

Further, the bottom of the dust collecting hopper is provided with an ash discharging valve for periodically discharging accumulated dust.

By adopting the technical scheme, when dust particles in the dust hopper are gathered to a certain degree, the dust can be conveniently discharged through the dust discharge valve, and the efficiency of cleaning dust in the dust hopper is improved.

To sum up, the utility model discloses following beneficial effect has:

1. the flue gas separator is arranged at the outlet end of the flue gas discharge pipe, the top of the side wall of the flue gas separator is provided with a gas inlet communicated with the flue gas discharge pipe, and the middle of the top of the flue gas separator is provided with the purified gas discharge pipe, so that the effect of separating and purifying flue gas is achieved;

2. the dust collecting hopper is arranged at the bottom of the smoke-gas separator, the spiral separating mesh belt is arranged in the smoke-gas separator above the dust collecting hopper, and a plurality of dust filtering meshes are arranged on the surface of the spiral separating mesh belt, so that the effect of effectively separating and collecting dust particles in smoke is achieved;

3. through setting up the bleed cover in the inside port department of gas separator roof that runs through at the clean gas delivery pipe, the bore of bleed cover is greater than clean gas delivery pipe port bore to set up the water conservancy diversion cambered surface at bleed cover lateral wall, thereby reach the impact to clean gas delivery pipe when slowing down the purified gas and discharging, improve the effect that purified gas discharged circulation and stability.

Drawings

FIG. 1 is a schematic view of a calciner for effective cleaning of exhaust flue gases according to an embodiment;

FIG. 2 is a disassembled schematic view of the internal structure of the spiral separator in the embodiment;

FIG. 3 is a schematic diagram of the embodiment for showing the connection relationship between the gas diversion assembly and the bleed hood.

In the figure, 1, a calciner body; 11. a flue gas outlet pipe; 2. an induced draft fan; 3. a flue gas discharge pipe; 4. a flue gas separator; 41. an air inlet; 5. a purified gas discharge pipe; 6. an air introducing cover; 61. a flow guide arc surface; 7. a gas diversion assembly; 71. a fixing ring; 72. filtering with a screen; 8. a dust collecting hopper; 9. an ash discharge valve; 10. a spiral separation mesh belt; 101. dust filtering mesh holes; 12. flexible sealing and edge covering; 13. a vertical support bar; 14. a supporting seat; 141. a support frame; 142. a support rod.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b):

a calcining furnace capable of effectively purifying and discharging flue gas comprises a calcining furnace body 1, wherein a flue gas outlet pipe 11 is arranged at the top of the calcining furnace body 1, an induced draft fan 2 is connected to the flue gas outlet pipe 11 in a flange mode, a flue gas discharge pipe 3 is connected to an air outlet of the induced draft fan 2 in a flange mode, and a flue gas separator 4 is arranged at the outlet end of the flue gas discharge pipe 3. The top of the side wall of the smoke-gas separator 4 is provided with a gas inlet 41, the end part of the smoke-gas discharge pipe 3 far away from the induced draft fan 2 is connected with an outer port flange of the gas inlet 41, and the middle of the top of the smoke-gas separator 4 is provided with a purified gas discharge pipe 5.

As shown in fig. 2 and 3, a port of the clean air discharge pipe 5 penetrating through the top wall of the flue gas separator 4 is fixedly connected with an air guide cover 6, the caliber of the air guide cover 6 is larger than the caliber of the port of the clean air discharge pipe 5, and a diversion arc surface 61 is arranged on the outer side wall of the air guide cover 6. The port department of leading gas cover 6 is provided with gas reposition of redundant personnel subassembly 7, and gas reposition of redundant personnel subassembly 7 includes solid fixed ring 71 and filter screen 72, and gu fixed ring 71 threaded connection is in leading gas cover 6 terminal surface, and filter screen 72 passes through glue and bonds in solid fixed ring 71 surface.

As shown in fig. 1 and 2, a dust hopper 8 is welded and fixed at the bottom of the flue gas separator 4, an ash discharge valve 9 is arranged at the bottom of the dust hopper 8, and an operator can regularly discharge and clean dust accumulated at the bottom of the dust hopper 8 through the ash discharge valve 9. A spiral separation mesh belt 10 is arranged above the inner wall of the dust hopper 8, and a plurality of dust filtering mesh holes 101 are arranged on the surface of the spiral separation mesh belt 10. The flexible sealing edge 12 is wrapped at the edge of the spiral separation mesh belt 10, the outer side wall of the flexible sealing edge 12 is attached to the inner side wall of the smoke-gas separator 4, a vertical support rod 13 is welded and fixed at the center of the spiral separation mesh belt 10, and a support seat 14 which is supported on the inner side wall of the dust hopper 8 is arranged at the bottom of the vertical support rod 13.

As shown in fig. 1 and 2, the supporting seat 14 includes a supporting frame 141 disposed to be attached to an inner wall of the dust hopper 8, and a plurality of supporting rods 142 fixedly connected to the inner wall of the supporting frame 141, and an end of each supporting rod 142 away from the supporting frame 141 is welded and fixed to a bottom end of the vertical supporting rod 13.

The specific implementation process comprises the following steps:

the induced draft fan 2 is started to introduce the smoke above the inside of the calciner body 1 into the smoke discharge pipe 3, the smoke enters the upper part of the inside of the smoke separator 4 through the smoke discharge pipe 3, the smoke flows along the tangential direction of the inner side wall of the smoke separator 4 under the guidance of the flow guide arc surface 61 on the outer side wall of the air guide cover 6 and moves spirally along the spiral separation mesh belt 10, and the smoke is continuously extruded with the spiral separation mesh belt 10 and the inner wall of the smoke separator 4 during the spiral transportation along the spiral separation mesh belt 10, so that a part of the gas is extruded towards the center. The flow speed and the direction of the extruded gas are changed so as to realize the separation from the dust particles, and the extruded gas flows upwards and enters the clean gas discharge pipe 5 from the bleed air hood 6 to be discharged;

the dust particles fall downwards under the action of gravity and fall into the dust collection hopper 8 through the dust filter mesh holes 101 on the surface of the spiral separation mesh belt 10 to be collected, and when a certain amount of dust particles are accumulated in the dust collection hopper 8, an operator can clean, discharge and unload the dust particles through the dust unloading valve 9 arranged at the bottom of the dust collection hopper 8. Therefore, the effect of efficiently purifying and discharging the smoke in the calciner body 1 can be achieved.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides a calcine furnace of effective purification emission flue gas, includes calcine furnace body (1), it is provided with flue gas outlet pipe (11) to calcine the top of furnace body (1), its characterized in that: flue gas outlet pipe (11) flange joint has draught fan (2), the air exit fixedly connected with flue gas discharge pipe (3) of draught fan (2), the exit end of flue gas discharge pipe (3) is provided with flue gas separator (4), air inlet (41) with flue gas discharge pipe (3) intercommunication are seted up at flue gas separator (4) lateral wall top, be provided with clean gas delivery pipe (5) in the middle of flue gas separator (4) top.

2. The calciner of claim 1 for effective cleaning of exhaust flue gases, characterized in that: the dust collector is arranged at the bottom of the smoke-gas separator (4), a spiral separation mesh belt (10) is arranged inside the smoke-gas separator (4) above the dust collector (8), a plurality of dust filtering mesh holes (101) are formed in the surface of the spiral separation mesh belt (10), a vertical supporting rod (13) is arranged at the center of the spiral separation mesh belt (10), and a supporting seat (14) which is supported on the inner side wall of the dust collector (8) is arranged at the bottom of the vertical supporting rod (13).

3. A calciner for effective cleaning of exhaust flue gases according to claim 2 characterised in that: the edge of the spiral separation mesh belt (10) is wrapped with a flexible sealing wrapping edge (12), and the outer side wall of the flexible sealing wrapping edge (12) is attached to the inner side wall of the smoke-gas separator (4).

4. The calciner of claim 1 for effective cleaning of exhaust flue gases, characterized in that: the port of the purified gas discharge pipe (5) penetrating through the inside of the top wall of the smoke-gas separator (4) is fixedly connected with an air guide cover (6), and the caliber of the air guide cover (6) is larger than that of the port of the purified gas discharge pipe (5).

5. Calciner for efficient cleaning of the exhaust fumes according to claim 4, characterized in that: and a flow guide arc surface (61) is arranged on the outer side wall of the air guide cover (6).

6. Calciner for effective cleaning of the exhaust fumes according to claim 5, characterized in that: the port department of leading gas cover (6) is provided with gaseous reposition of redundant personnel subassembly (7), gaseous reposition of redundant personnel subassembly (7) are including solid fixed ring (71) and set up in solid fixed ring (71) surperficial filter screen (72).

7. A calciner for effective cleaning of exhaust flue gases according to claim 2 characterised in that: the supporting seat (14) comprises a supporting frame (141) attached to the inner wall of the dust hopper (8) and a plurality of supporting rods (142) fixedly connected to the inner wall of the supporting frame (141), and all the supporting rods (142) are fixedly connected to the bottom end of the vertical supporting rod (13) at the end part of the supporting rod (142) far away from the direction of the supporting frame (141).

8. A calciner for effective cleaning of exhaust flue gases according to claim 2 characterised in that: the bottom of the dust collecting hopper (8) is provided with an ash discharging valve (9) for periodically discharging accumulated dust.