Gas two-way combustion waste gas recovery device

Abstract

A gas bidirectional combustion waste gas recovery device comprises a gas generator (1), a cyclone dust collector (2), a gas exchanger (3), a kiln (5) and a desulfurization and denitrification tower (6), a gas outlet of the gas generator (1) is communicated with a gas inlet of the cyclone dust collector (2), and a gas outlet of the cyclone dust collector (2) is communicated with a gas inlet of the gas exchanger (3) through a pipeline. Two air heat storage chambers (7) and two coal gas heat storage chambers (8) are respectively arranged between the coal gas exchanger (3) and the kiln (5), air outlets of the air heat storage chambers (7) and the coal gas heat storage chambers (8) are respectively communicated with the kiln (5) through pipelines, and coal gas outlets on two sides of the coal gas exchanger (3) are respectively communicated with corresponding air inlets of the two coal gas heat storage chambers (8). The coal gas exchanger has the advantages that coal gas remained in the pipeline is pumped into the kiln for combustion during reversing, waste is avoided, and the coal gas exchanger is environment-friendly and energy-saving.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal gas bidirectional combustion recovery technical field, concretely relates to a kind of coal gas bidirectional combustion waste gas recovery device. BACKGROUND

[0002] The kiln of glass production is through coal gas as fuel, the coal gas generated by coal gas generating furnace is transported to kiln for bidirectional combustion by coal gas exchanger, when the coal gas exchanger is reversed, the coal gas remaining in pipeline is burned after being discharged from chimney together with waste gas, which can cause great waste, and pollute the environment. SUMMARY

[0003] The utility model discloses to the above-mentioned insufficient, and provide a kind of coal gas bidirectional combustion waste gas recovery device.

[0004] The utility model discloses a coal gas generating furnace, cyclone dust collector, coal gas exchanger, kiln, desulfurization and denitrification tower, the gas outlet of coal gas generating furnace is communicated with the gas inlet of cyclone dust collector, the gas outlet of cyclone dust collector is communicated with the gas inlet of coal gas exchanger by pipeline,

[0005] Two air regenerators and two coal gas regenerators are respectively arranged between the coal gas exchanger and the kiln, the gas outlets of the air regenerators and the coal gas regenerators are communicated with the kiln by pipelines,

[0006] The gas outlets on both sides of the coal gas exchanger are communicated with the gas inlets of the corresponding two coal gas regenerators, the gas outlet in the middle of the coal gas exchanger is communicated with the gas inlet of the desulfurization and denitrification tower by the waste gas pipeline, and an air extractor for connecting the two air regenerators is arranged on the waste gas pipeline.

[0007] The coal gas exchanger comprises a water tank, an outer cover and an inner cover, three gas pipelines are horizontally arranged in the water tank and communicated with the gas outlets on both sides and the gas outlet in the middle, the water tank is filled with sealing water with a water level not higher than the gas pipelines, a gas inlet of the cyclone dust collector is arranged on the outer cover, the outer cover covers the top of the water tank, the inner cover is movably installed in the water tank and covers the adjacent two gas pipelines, and an inner cover driving assembly is arranged on the water tank to drive the movement of the inner cover.

[0008] The inner cover driving assembly comprises a pair of supporting rods and a pair of limiting assemblies, the supporting rods are fixedly connected to the front and rear sides of the inner cover through connecting rods, the water tank is provided with a rotating shaft at each end, the ends of the supporting rods are provided with swing arms fixedly connected to the rotating shafts at one end, a driving motor is arranged on one side of the water tank to drive the rotation of the rotating shafts, and the limiting assemblies are installed on the outer cover and connected to the corresponding supporting rods through connecting pieces.

[0009] The limiting assembly comprises a connecting shaft, both ends of the connecting shaft are provided with chain gears, the connecting member is a chain, and the chain gears are connected with the supporting rods through the chain.

[0010] A counterweight is arranged on the chain gear.

[0011] The utility model discloses the gas exchanger is when carrying out the reverse, and the gas that remains in the pipeline is sucked into the kiln and carries out the combustion, avoids the waste, and environmental protection energy -conserving. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the structural schematic diagram of the utility model.

[0013] Figure 2 It is the coal gas operation schematic diagram of the utility model.

[0014] Figure 3 It is the structure schematic diagram of the gas exchanger.

[0015] Figure 4 It is the internal structure schematic diagram of the gas exchanger.

[0016] Figure 5 It is Figure 3 The partial enlarged structure schematic diagram. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and advantage of the embodiments of the utility model more clear, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model, obviously, the described embodiments are a part of the embodiments of the utility model, not all the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0018] Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the utility model. It should be noted that: similar signs and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0019] In the description of the utility model embodiments, it needs to be explained that, if the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship commonly used when the utility model product is used, only for the convenience of describing the utility model and simplifying the description, and not indicating or implying that the indicated device or element must have a specific orientation, structure and operation, therefore, it cannot be understood as a limitation on the utility model. In addition, if the terms "first", "second" and the like appear in the description of the utility model, they are only used for differentiation, and cannot be understood as indicating or implying relative importance.

[0020] In the description of the utility model embodiments, it also needs to be explained that, unless otherwise explicitly specified and limited, if the terms "set", "connected" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0021] As shown in the drawings, the utility model includes gas generator 1, cyclone dust collector 2, gas exchanger 3, kiln 5, desulfurization and denitrification tower 6, the gas outlet of gas generator 1 is communicated with the gas inlet of cyclone dust collector 2, the gas outlet of cyclone dust collector 2 is communicated with the gas inlet of gas exchanger 3 through pipeline, two air regenerators 7 and two gas regenerators 8 are respectively arranged between gas exchanger 3 and kiln 5, the gas outlets of air regenerator 7 and gas regenerator 8 are respectively communicated with kiln 5 through pipeline, the gas outlets on both sides of gas exchanger 3 are respectively communicated with the gas inlets of corresponding two gas regenerators 8, the gas outlet in the middle of gas exchanger 3 is communicated with the gas inlet of desulfurization and denitrification tower 6 through waste gas pipeline 9, and the exhaust fan 10 that communicates two air regenerators 7 is arranged on waste gas pipeline 9.

[0022] In order to ensure the balance of temperature in front and back of kiln 5, alternating combustion is carried out at both ends of kiln 5, the gas generated by gas generator 1 is first dusted by cyclone dust collector 2, then enters the first gas regenerator 8 through the gas outlet on one side of gas exchanger 3, is preheated in the first gas regenerator 8 and is burned at one end of kiln 5, and at the same time, air is preheated in the first air regenerator 7 and enters kiln 5 to participate in combustion with the gas.

[0023] When the need to reverse combustion, gas switch 3 start, the gas delivery outlet reversing, at this time the gas will be from the other side of the gas switch 3 gas outlet into the corresponding second gas heat storage room 8, after preheating into the kiln 5 the other end to burn, reversing the exhaust valve on the exhaust pipe 9 closed, the exhaust fan 10 open, the remaining in the pipeline to the first gas heat storage room 8 and the exhaust pipe 9 gas into the kiln 5 for combustion to avoid waste, the exhaust fan 10 open time for 2 minutes, when the remaining gas is exhausted, the exhaust valve on the exhaust pipe 9 open, continue to discharge exhaust gas, the exhaust gas through the desulfurization and denitrification tower 6 after purification and discharge.

[0024] Preferably, the gas switch 3 includes a water tank 12, cover 13 and cover 14, the water tank 12 transverse arrangement of three gas pipes 15 respectively with both sides of the gas outlet and the central gas outlet, the water tank 12 filled with water level not higher than the gas pipe 15 sealing water, cover 13 is provided with a gas inlet connected to the cyclone dust collector 2, cover 13 cover in the water tank 12 top, cover 14 can be left and right move installation in the water tank 12, and cover set in the adjacent two gas pipes 15, the water tank 12 is provided with a cover drive assembly driving the cover 14 moves.

[0025] Cover 13 and cover 14 between the water seal forms a closed gas delivery cavity, three gas pipes 15, the central to the desulfurization and denitrification tower 6, the other two are connected to the corresponding gas heat storage room 8, cover 14 cover in the adjacent two gas pipes 15, only one gas pipe 15 to deliver gas, the other two to deliver exhaust gas, when the need to reverse, cover 14 translation cover into the gas pipe 15 to deliver gas, expose another gas pipe 15 connected to the gas heat storage room 8, that is, the original gas pipe to deliver gas to the exhaust pipe to deliver gas, while the original exhaust pipe to deliver gas to the gas pipe to deliver gas.

[0026] Preferably, the cover drive assembly includes a pair of support rods 20 and a pair of limit components 21, a pair of support rods 20 is respectively fixed through the connecting rod on the front and rear sides of the cover 14, the left and right ends of the water tank 12 are provided with a rotating shaft 22, both ends of the support rod 20 are provided with a swing arm 23 fixed at one end on the rotating shaft 22, one side of the water tank 12 is provided with a drive motor 24 driving the rotating shaft 22 to rotate, a pair of limit components 21 are installed on the cover 13 and connected to the corresponding support rod 20 through the connecting piece 25.

[0027] A pair of support rods 20 are arranged in parallel, the drive motor 24 and the rotating shaft 22 are driven by chain transmission, the rotating shaft 22 rotates through the swing arm 23 to control the transverse movement of the pair of support rods 20, thereby moving the cover 14 a distance, the limit component 21 is used to limit the position of the cover 14 movement.

[0028] Specifically, the limiting assembly 21 comprises a connecting shaft 27 mounted on the outer cover 13, both ends of the connecting shaft 27 are provided with sprockets 28, the connecting member 25 is a chain, and the sprockets 28 are connected with the support rod 20 through the chain.

[0029] When the support rod 20 moves in the transverse direction, the sprockets 28 rotate synchronously under the driving of the chain, the counterweight 30 is used to apply a reverse gravity to keep the support rod 20 moving steadily, the sprockets 28 are fan-shaped, and the length of the chain can limit the moving distance of the support rod 20. A limiting tension wheel matched with the chain is arranged on the outer cover 13 to prevent the chain from shaking and falling off.

Claims

1. A coal gas bidirectional combustion waste heat recovery device, characterized in that The application relates to a gas exchange device for a gas-fired kiln, which comprises a gas generator (1), a cyclone dust collector (2), a gas exchanger (3), a kiln (5) and a desulfurization and denitrification tower (6).

2. A coal gas bidirectional combustion waste heat recovery device according to claim 1, characterized in that The gas exchanger (3) comprises a water tank (12), an outer cover (13) and an inner cover (14), three gas pipes (15) are horizontally arranged in the water tank (12) and are communicated with the gas outlets on the two sides and the middle of the gas exchanger (3), the water tank (12) is filled with sealing water with a water level not higher than the gas pipes (15), the outer cover (13) is provided with a gas inlet communicated with the cyclone dust collector (2), the outer cover (13) covers the top of the water tank (12), the inner cover (14) is movably arranged in the water tank (12) and covers the adjacent two gas pipes (15), and the water tank (12) is provided with an inner cover driving assembly for driving the inner cover (14) to move.

3. A coal gas bi-directional combustion waste heat recovery device according to claim 2, characterized in that The inner cover driving assembly comprises a pair of supporting rods (20) and a pair of limiting assemblies (21), the supporting rods (20) are fixed to the front and rear sides of the inner cover (14) through connecting rods, the water tank (12) is provided with rotating shafts (22) at the left and right ends, the supporting rods (20) are provided with swing arms (23) fixed to the rotating shafts (22) at the two ends, the water tank (12) is provided with a driving motor (24) for driving the rotating shafts (22) to rotate at one side, and the limiting assemblies (21) are arranged on the outer cover (13) and connected with the corresponding supporting rods (20) through connecting pieces (25).

4. A device for recovering waste heat from bi-directional combustion of coal gas according to claim 3, characterized in that The limiting assembly (21) comprises a connecting shaft (27), the connecting shaft (27) is provided with chain gears (28) at the two ends, and the connecting piece (25) is a chain.

5. A device for the recovery of waste heat from the combustion of coal gas in both directions according to claim 4, characterized in that The chain gear (28) is provided with a counterweight (30).

Images