Cloth bag heat dissipation chamber of closed environment-friendly safe pulverized coal system for tin smelting fuming furnace

Abstract

The utility model discloses a closed type environment-friendly safe pulverized coal system cloth bag heat dissipation chamber for a tin smelting fuming furnace, and relates to the technical field of fuming furnaces. Comprising a cloth bag frame, a funnel is fixedly connected to the bottom end of the cloth bag frame, a filtering assembly is installed in the cloth bag frame, and a heat dissipation assembly is fixedly connected to the interior of the cloth bag frame. According to the utility model, through the arrangement of the control assembly, when the dust in the cloth bag heat dissipation chamber is cleaned, the electric control valve opens the air outlet pipe and circularly blows, so that dust falls into the second dust removal bag and the first dust removal bag, air passes through the filter screen under the action of high-pressure air flow, particles are blocked by the filter screen, and the dust removal effect is improved. And meanwhile, the telescopic end of the first electric push rod continuously stretches out and draws back, so that the cleaning piece moves back and forth, the surface of the filter screen is cleaned, particles on the filter screen are accumulated and fall to the position of a funnel, then collection is conducted, the dust cleaning time is shortened, and the particle collection speed is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of fuming furnaces, in particular to a closed environmentally friendly and safe pulverized coal system bag heat dissipation chamber for a tin smelting fuming furnace. Background Art

[0002] Tin smelting is the process of heating tin ore or other tin-containing raw materials to extract tin metal from them. The fuming furnace is a kind of equipment used in the high-temperature calcination process of tin ore. It is mainly used to convert organic matter and moisture in the ore into flue gas and ash for subsequent processing. The bag heat dissipation chamber is located at the exhaust port of the fuming furnace, and the flue gas is filtered and cooled through the bag filter.

[0003] A large amount of flue gas is generated during the use of the tin smelting fumigation furnace, and the flue gas is filtered through a bag cooling chamber. However, the single filtering capacity of a single bag cooling chamber is limited. Therefore, multiple bag cooling chambers are recycled in the industry to ensure the filtering effect of the bag cooling chamber. When cleaning the inside of the bag cooling chamber, the particles fall into the funnel position by their own gravity for collection. However, due to the suspension effect of particulate matter in the air, the particle collection speed is low, which in turn affects the cleaning speed. For this reason, a closed, environmentally friendly and safe pulverized coal system bag cooling chamber for tin smelting fumigation furnace is proposed. Utility Model Content

[0004] The utility model aims to provide a closed environmentally friendly and safe pulverized coal system bag heat dissipation chamber for a tin smelting fuming furnace to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a closed environmentally friendly and safe pulverized coal system bag heat dissipation chamber for a tin smelting fuming furnace, comprising a bag frame, a funnel is fixedly connected to the bottom end of the bag frame, a filter assembly is installed inside the bag frame, a heat dissipation assembly is fixedly connected inside the bag frame, and a control assembly is installed on the bag frame;

[0006] The control component includes a diverter pipe, which is fixedly installed on the air inlet end of the bag frame, a diverter valve is installed inside the diverter pipe, a filter is fixedly connected to one side of the funnel, a No. 1 electric push rod is fixedly connected to one side of the funnel, a cleaning piece is fixedly connected to the telescopic end of the No. 1 electric push rod, one side of the cleaning piece is in contact with the side wall of the filter, the bottom end of the bag frame is fixedly connected to an outlet pipe, and an electric-controlled valve is installed inside the outlet pipe.

[0007] Preferably, the filter assembly includes a through pipe, which is fixedly installed inside the bag frame, the outer wall of the through pipe is fixedly connected to a No. 1 dust bag, the bottom end of the through pipe is fixedly connected to a No. 2 dust bag, the No. 2 dust bag is inside the No. 1 dust bag, the bottom end inside the bag frame is fixedly connected to a drop pipe, a gap is provided between the drop pipe and the bottom end inside the bag frame, and the outer wall of the drop pipe is fixed to the bottom end of the inner wall of the No. 1 dust bag.

[0008] Preferably, the sieve hole size of the No. 1 dust bag is larger than the sieve hole size of the No. 2 dust bag, a partition is fixedly connected to the inside of the bag frame, the partition divides the inside of the bag frame into two chambers, and the through pipe is fixedly installed on the partition.

[0009] Preferably, a blowing pipe is fixedly connected to the top of the bag frame, and a pulse valve is fixedly connected to the air inlet end of the blowing pipe.

[0010] Preferably, the heat dissipation component includes a negative pressure fan, which is fixedly mounted on the bag frame, and the outer wall of the diverter pipe is fixedly connected to a cooling pipe, and the outer wall of the cooling pipe is fixedly connected to a cold water circulation component.

[0011] Preferably, a circular hole is opened on one side of the funnel, and the telescopic end of the No. 1 electric push rod passes through the circular hole and penetrates one side of the funnel and is fixed to the cleaning piece.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The bag cooling chamber of the closed environmentally friendly and safe pulverized coal system for tin smelting fumigation furnace is controlled by the setting of the control components. When the bag cooling chamber is cleaned, the electric control valve opens the air outlet pipe and circulates the spraying operation, so that the No. 2 dust bag and the No. 1 dust bag are dedusted. Under the action of the high-pressure airflow, the gas passes through the filter and the particles are blocked by the filter. At the same time, the telescopic end of the No. 1 electric push rod is continuously extended and retracted, so that the cleaning part moves back and forth, and then the surface of the filter is cleaned, so that the particles on the filter accumulate and fall into the funnel position for collection, thereby shortening the cleaning time and increasing the particle collection speed.

[0014] At the same time, by setting up the filtering components, setting up dust bag No. 1 and dust bag No. 2, the centralized filtering of a single dust bag is reduced, and the filtering amount required for a single dust bag is reduced by graded filtration. At the same time, the use of the drop pipe allows the particles on the No. 2 dust bag to reach the funnel position through the drop pipe under the action of circulating blowing, so as to collect the particles and ensure the filtering effect of the dust bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an isometric view of the utility model;

[0016] Figure 2 It is an internal cross-sectional view of the utility model;

[0017] Figure 3 It is an internal cross-sectional view of the utility model;

[0018] Figure 4 It is an isometric drawing of the heat dissipation component of the utility model.

[0019] In the figure: 1. bag frame; 2. filter assembly; 201. through pipe; 202. dust bag No. 1; 203. dust bag No. 2; 204. drop pipe; 3. heat dissipation assembly; 301. negative pressure fan; 302. cooling pipe; 4. spray pipe; 5. pulse valve; 6. funnel; 7. control assembly; 701. diverter pipe; 702. diverter valve; 703. filter screen; 704. electric push rod No. 1; 705. cleaning parts. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] like Figure 1 - Figure 4 As shown, the utility model provides a technical solution: a closed environmentally friendly and safe pulverized coal system bag heat dissipation chamber for a tin smelting fuming furnace, comprising a bag frame 1, a funnel 6 is fixedly connected to the bottom end of the bag frame 1, a filter component 2 is installed inside the bag frame 1, a heat dissipation component 3 is fixedly connected inside the bag frame 1, and a control component 7 is installed on the bag frame 1;

[0022] The control component 7 includes a diverter pipe 701, which is fixedly installed on the air inlet end of the bag frame 1. A diverter valve 702 is installed inside the diverter pipe 701. A filter screen 703 is fixedly connected to one side of the inside of the funnel 6. A No. 1 electric push rod 704 is fixedly connected to one side of the funnel 6. A cleaning piece 705 is fixedly connected to the telescopic end of the No. 1 electric push rod 704. One side of the cleaning piece 705 is in contact with the side wall of the filter screen 703. The bottom end of the bag frame 1 is fixedly connected to an outlet pipe, and an electric-controlled valve is installed inside the outlet pipe.

[0023] The filter assembly 2 includes a through pipe 201, which is fixedly installed inside the bag frame 1. The outer wall of the through pipe 201 is fixedly connected to a dust bag No. 1 202. The bottom end of the through pipe 201 is fixedly connected to a dust bag No. 2 203. The dust bag No. 2 203 is inside the dust bag No. 1 202. The bottom end inside the bag frame 1 is fixedly connected to a drop pipe 204. A gap is provided between the drop pipe 204 and the bottom end inside the bag frame 1. The outer wall of the drop pipe 204 is fixed to the bottom end of the inner wall of the dust bag No. 1 202.

[0024] The mesh size of the first dust bag 202 is larger than that of the second dust bag 203. A partition is fixedly connected to the inside of the bag frame 1. The partition divides the inside of the bag frame 1 into two chambers. The through pipe 201 is fixedly installed on the partition.

[0025] A blowing pipe 4 is fixedly connected to the top of the bag frame 1 , and a pulse valve 5 is fixedly connected to the air inlet end of the blowing pipe 4 .

[0026] The heat dissipation component 3 includes a negative pressure fan 301, which is fixedly mounted on the bag frame 1. The outer wall of the shunt pipe 701 is fixedly connected to a cooling pipe 302, and the outer wall of the cooling pipe 302 is fixedly connected to a cold water circulation component.

[0027] A circular hole is provided on one side of the funnel 6 , and the telescopic end of the No. 1 electric push rod 704 passes through the circular hole and penetrates one side of the funnel 6 and is fixed to the cleaning piece 705 .

[0028] The bag frame 1 includes a partition, which divides the interior of the bag frame 1 into two upper and lower chambers. The upper and lower chambers inside the bag frame 1 are connected through the through pipe 201. The gas containing particles passes through the No. 1 dust bag 202 and the No. 2 dust bag 203, moves from the through pipe 201 to the upper chamber of the bag frame 1, and flows out from the air outlet end of the bag frame 1.

[0029] When the smoke gas is filtered in the bag cooling chamber, although the smoke can directly reach the position of the second dust bag 203 through the position of the drop pipe 204, since the mesh size of the first dust bag 202 is larger than the mesh size of the second dust bag 203, the through pipe 201 is at the bottom position inside the bag frame 1, and the smoke content in this part is relatively small, so it will not affect the use of the filter assembly 2. The first dust bag 202 and the second dust bag 203 realize graded filtration to avoid filtration concentration on a single dust bag. At the same time, the use of the drop pipe 204 makes The particles on the No. 2 dust bag 203 can also reach the funnel 6 position through the drop pipe 204 when cleaning. By setting the filter assembly 2, the No. 1 dust bag 202 and the No. 2 dust bag 203 are set to reduce the centralized filtering of a single dust bag. By means of graded filtration, the required filtering amount of a single dust bag is reduced. At the same time, the use of the drop pipe 204 allows the particles on the No. 2 dust bag 203 to reach the funnel 6 position through the drop pipe 204 under the action of circulating blowing, thereby collecting the particles and ensuring the filtering effect of the dust bag.

[0030] The high-temperature flue gas passes through the shunt pipe 701, and the flue gas inside the shunt pipe 701 is cooled by the cooling pipe 302. The cold water circulation component allows the cold water to circulate in the cooling pipe 302, so that the cold water can take away the heat of the flue gas. At the same time, the subsequent cold water continues to enter the cooling pipe 302 to achieve the circulation cooling and temperature reduction of the cold water. The external room temperature is lower than the flue gas temperature discharged from the tin smelting fumigation furnace. The negative pressure fan 301 is used to mix the external air and the flue gas to reduce the temperature of the flue gas. At the same time, the entry of external gas will not affect the filtering effect of the filter component 2. By cooling the flue gas, the impact of high-temperature flue gas on the dust collector bag is reduced.

[0031] The air inlet end of the bag frame 1 is closed. After filtering in the bag heat dissipation chamber, the pulse valve 5 is operated to allow high-pressure gas to be ejected through the blowing pipe 4 and sprayed toward the No. 1 dust bag 202 and the No. 2 dust bag 203. Pulse blowing is to blow off the dust on the surface of the bag with high-pressure gas. At this time, the valve on the outlet pipe is opened, so that the high-pressure gas ejected by the pulse blowing can flow out of the outlet pipe. The high-pressure gas carries the particles through the filter 703, and the particles are blocked by the filter 703. The telescopic end of the No. 1 electric push rod 704 is continuously extended and retracted, causing the cleaning part 705 to move back and forth. Through the control component 7 It is arranged that when cleaning the bag cooling chamber, the electric control valve opens the air outlet pipe and performs a circulating spray operation, so that the No. 2 dust bag 203 and the No. 1 dust bag 202 can shed dust. Under the action of the high-pressure airflow, the gas passes through the filter 703, and the particles are blocked by the filter 703. At the same time, the telescopic end of the No. 1 electric push rod 704 is continuously extended and retracted, so that the cleaning part 705 moves back and forth, and then the surface of the filter 703 is cleaned, so that the particles on the filter 703 accumulate and fall into the funnel 6 position for collection, thereby shortening the cleaning time and increasing the particle collection speed.

[0032] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is limited by the attached embodiments and their equivalents.

Claims

1. A closed environmentally friendly and safe pulverized coal system bag heat dissipation chamber for a tin smelting fuming furnace, comprising a bag frame (1), characterized in that: A funnel (6) is fixedly connected to the bottom end of the bag frame (1), a filter assembly (2) is installed inside the bag frame (1), a heat dissipation assembly (3) is fixedly connected inside the bag frame (1), and a control assembly (7) is installed on the bag frame (1); The control assembly (7) comprises a shunt pipe (701), the shunt pipe (701) being fixedly mounted on the air inlet end of the bag frame (1), a shunt valve (702) being mounted inside the shunt pipe (701), a filter screen (703) being fixedly connected to one side of the interior of the funnel (6), a No. 1 electric push rod (704) being fixedly connected to one side of the funnel (6), a cleaning piece (705) being fixedly connected to the telescopic end of the No. 1 electric push rod (704), one side of the cleaning piece (705) being in contact with the side wall of the filter screen (703), and an air outlet pipe being fixedly connected to the bottom end of the bag frame (1), an electric control valve being mounted inside the air outlet pipe.

2. The closed environmentally friendly and safe pulverized coal system bag heat dissipation chamber for tin smelting fuming furnace according to claim 1 is characterized by: The filter assembly (2) comprises a through pipe (201), the through pipe (201) being fixedly mounted inside the bag frame (1), the outer wall of the through pipe (201) being fixedly connected to a first dust bag (202), the bottom end of the through pipe (201) being fixedly connected to a second dust bag (203), the second dust bag (203) being located inside the first dust bag (202), the bottom end inside the bag frame (1) being fixedly connected to a drop pipe (204), a gap being provided between the drop pipe (204) and the bottom end inside the bag frame (1), the outer wall of the drop pipe (204) being fixed to the bottom end of the inner wall of the first dust bag (202).

3. The closed environmentally friendly and safe pulverized coal system bag heat dissipation chamber for tin smelting fuming furnace according to claim 1 is characterized by: The mesh size of the first dust bag (202) is larger than the mesh size of the second dust bag (203); a partition is fixedly connected to the interior of the bag frame (1); the partition divides the interior of the bag frame (1) into two chambers; and the through pipe (201) is fixedly mounted on the partition.

4. The closed environmentally friendly and safe pulverized coal system bag heat dissipation chamber for tin smelting fuming furnace according to claim 1 is characterized by: A blowing pipe (4) is fixedly connected to the top end of the bag frame (1), and a pulse valve (5) is fixedly connected to the air inlet end of the blowing pipe (4).

5. The closed environmentally friendly and safe pulverized coal system bag heat dissipation chamber for tin smelting fuming furnace according to claim 1 is characterized by: The heat dissipation component (3) comprises a negative pressure fan (301), the negative pressure fan (301) is fixedly mounted on the bag frame (1), the outer wall of the diverter pipe (701) is fixedly connected to a cooling pipe (302), and the outer wall of the cooling pipe (302) is fixedly connected to a cold water circulation component.

6. The closed environmentally friendly and safe pulverized coal system bag heat dissipation chamber for tin smelting fuming furnace according to claim 1 is characterized by: A circular hole is provided on one side of the funnel (6), and the telescopic end of the first electric push rod (704) passes through the circular hole and penetrates one side of the funnel (6) and is fixed to the cleaning member (705).

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