CN212299026U - Poisonous and harmful gas processing device - Google Patents
Poisonous and harmful gas processing device Download PDFInfo
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- CN212299026U CN212299026U CN202021135984.1U CN202021135984U CN212299026U CN 212299026 U CN212299026 U CN 212299026U CN 202021135984 U CN202021135984 U CN 202021135984U CN 212299026 U CN212299026 U CN 212299026U
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Abstract
A poisonous and harmful gas treatment device belongs to the technical field of poisonous and harmful gas treatment equipment. The method is characterized in that: the coal feeding system comprises an air supply fan, an air mixing valve, a coal feeding scale (12), a coal powder fan (13) and a rotary kiln (15), wherein an air outlet of an input pipe (18) is communicated with an air inlet of a combustor (14) of the rotary kiln (15) after being connected with the air supply fan in series, the air mixing valve is communicated with an air inlet of the air supply fan, an air inlet of the coal feeding scale (12) is communicated with an air outlet of the coal powder fan (13), and a coal outlet of the coal feeding scale (12) is communicated with a coal inlet of the combustor (14). This poisonous and harmful gas processing apparatus's air supply fan can guarantee that the input tube keeps little negative pressure, and then has avoided poisonous and harmful gas to escape, causes the pollution to the environment, mixes the blast gate and can in time supply the air for air supply fan, can not cause the influence or destroy to cement clinker's production technology, handles thoroughly poisonous and harmful gas.
Description
Technical Field
A poisonous and harmful gas treatment device belongs to the technical field of poisonous and harmful gas treatment equipment.
Background
Along with the guidance of national environmental protection policies and the gradual improvement of technologies for cooperatively disposing various wastes by a cement kiln, the work of cooperatively recycling the wastes by the cement kiln is gradually developed in cement enterprises, various wastes such as municipal domestic waste, water treatment sludge, polluted soil, biological cultivation wastes, chemical wastes, hazardous wastes, industrial wastes and the like can generate various toxic and harmful gases with peculiar smell or odor, the storage and transportation generally require a closed measure, a storage facility needs to be operated at negative pressure, and the generated gases can be discharged into the atmosphere after being processed.
With the tightening of national environmental protection policies and the increasing of environmental protection governing force, small-sized production and processing enterprises which are easy to generate odor and smell escape have production difficulties, such as furniture, mechanical parts, small leather processing, toy clothes, small handicraft, daily chemical engineering and the like.
The clinker calcining zone of the novel dry-method cement kiln has the characteristics of large thermal field space, high stability and high combustion temperature, and has natural technical advantages and cost advantages compared with a common incinerator, the pulverized coal sprayed into the incinerator is violently combusted, the gas temperature reaches 1750 ℃, the material temperature reaches 1450 ℃, and the kiln tail gas temperature reaches 1050 ℃. After toxic and harmful gas enters a calcining area of the rotary kiln, inorganic substances, organic substances, biological microorganisms and the like with toxic and complex structures in the gas can be decomposed into simple molecular states at high temperature, so that toxic and harmful components are thoroughly destroyed and detoxified, pollution is eliminated, and hidden danger is not left.
The method is characterized in that toxic and harmful gases are introduced into a high-temperature calcining area of a cement kiln for harmless treatment, a gas preparation device is required to be newly added, meanwhile, the necessary transformation is required to be carried out on the original cement equipment, and two main problems need to be solved. Firstly, the toxic and harmful gases are treated on the premise of not damaging or less interfering the production process conditions of the cement clinker, the adverse effects on the operation and cost of the cement clinker production are reduced as much as possible on the premise of ensuring the quality of the cement clinker, and secondly, the environmental safety requirements of a toxic and harmful gas treatment system are ensured, the escape of the gases cannot occur, and the new environmental pollution of a production post is caused.
Disclosure of Invention
The to-be-solved technical problem of the utility model is: overcomes the defects of the prior art, and provides a poisonous and harmful gas disposal device which can avoid the escape of poisonous and harmful gas and the environmental pollution.
The utility model provides a technical scheme that its technical problem adopted is: this poisonous and harmful gas processing apparatus, its characterized in that: the coal feeding system comprises an air supply fan, an air mixing valve, a coal feeding scale, a pulverized coal fan and a rotary kiln, wherein an air outlet of an input pipe is communicated with an air inlet of a burner of the rotary kiln after being connected with the air supply fan in series, the air mixing valve is communicated with an air inlet of the air supply fan, an air inlet of the coal feeding scale is communicated with an air outlet of the pulverized coal fan, and a coal outlet of the coal feeding scale is communicated with a coal inlet of the burner.
Preferably, the air supply fan comprises an inner air fan and an outer air fan, air inlets of the inner air fan and the outer air fan are communicated with an air outlet of the input pipe, an air outlet of the inner air fan is communicated with an air inlet of an inner air channel of the combustor, an air outlet of the outer air fan is communicated with an outer air channel of the combustor, and the air mixing valve is communicated with air inlets of the inner air fan and the outer air fan.
Preferably, the air supply fan further comprises a standby fan, an air inlet of the standby fan is communicated with an air outlet of the input pipe, an air outlet of the standby fan is communicated with an air inlet of the inner air channel and an air inlet of the outer air channel of the combustor simultaneously, regulating valves are arranged between the air outlet of the standby fan and the inner air channel and between the air outlet of the combustor and the outer air channel of the combustor respectively, and the air mixing valve is further communicated with the air inlet of the standby fan.
Preferably, the air mixing valve comprises a mechanical air mixing valve and an electric air mixing valve, and the mechanical air mixing valve and the electric air mixing valve are both communicated with an air inlet of the air supply fan.
Preferably, the mechanical air mixing valve comprises a valve body, a valve plate and a damping device, an input port and an output port are formed in the valve body, the valve plate is arranged in the valve body and arranged between the input port and the output port, a sealing portion matched with the valve plate is arranged in the valve body, and the damping device is connected with the valve plate.
Preferably, the damping device comprises a damping cup and a damping piston, the damping cup is mounted on the valve body, the damping piston is slidably arranged in the damping cup, the valve plate is connected with the damping piston and drives the damping piston to move synchronously, damping oil is arranged in the damping cup, and inner cavities of the damping cups on two sides of the damping piston are communicated.
Preferably, the air mixing device further comprises a buffer tank, an air outlet of the input pipe is communicated with an air inlet of the buffer tank, an air inlet of the air supply fan is communicated with an air outlet of the buffer tank, and the air mixing valve is communicated with an air inlet of the buffer tank.
Preferably, the air conditioner further comprises an air inlet fan, an air inlet of the air inlet fan is communicated with an air outlet of the input pipe, and an air outlet of the air inlet fan is communicated with the buffer tank.
Preferably, the air conditioner further comprises an exhaust device, an air outlet of the input pipe is communicated with an air inlet of the air supply fan and an air inlet of the exhaust device, an input valve is arranged between the air outlet of the input pipe and the air inlet of the air supply fan, and an exhaust valve is arranged between the air outlet of the input pipe and the exhaust device.
Preferably, the exhaust device comprises a gas treatment device and a chimney, a gas inlet of the gas treatment device is communicated with a gas outlet of the input pipe, and a gas outlet of the gas treatment device is communicated with the chimney.
Compared with the prior art, the utility model discloses the beneficial effect who has is:
1. this poisonous and harmful gas processing apparatus's air supply fan can guarantee that the input tube keeps the little negative pressure, and then has avoided poisonous and harmful gas to escape, causes the pollution to the environment, mixes the blast gate and can in time supply the air for air supply fan, avoids influencing the burning of buggy in the combustor because the air of input tube input is insufficient, can not cause the influence or destroy cement clinker's production technology, handles thoroughly poisonous and harmful gas.
2. The inner air fan can convey toxic and harmful gas for the inner air channel of the combustor, the outer air fan can convey toxic and harmful gas for the outer air channel of the combustor, and the toxic and harmful gas and pulverized coal sprayed out of the pulverized coal channel are mixed and combusted outside the nozzle of the combustor, so that enough heat is provided for clinker calcination of the rotary kiln.
3. The standby fan can supply air for the inner air channel or the outer air channel of the combustor, so that the problem that the calcination of cement clinker is influenced due to insufficient air supply of the inner air channel or the outer air channel is avoided, and the switching is convenient.
4. The air mixing valve comprises a mechanical air mixing valve and an electric air mixing valve, the pressure stability of an air inlet of the air supply fan can be guaranteed, the sufficient air supply of the burner is guaranteed, and the burner can provide enough heat for the rotary kiln.
5. The valve plate of machinery air mixing valve is mutually supported with the sealing of valve body, with input port and delivery outlet disconnection, this machinery air mixing valve is vertical when using, rely on the tight sealing of gravity compacting of valve plate, thereby realize sealedly, and rely on the pressure differential of both sides to realize opening between valve plate and the sealing about the valve plate, thereby realized that the air inlet pressure of maintaining air supply fan is in normal range, damping device can produce the damping to the motion of valve plate, avoid the valve plate velocity of motion too fast and the problem of vibration and impact appears, it is reliable to have guaranteed to seal between valve plate and the sealing, and then mechanical air mixing valve reliable operation has been guaranteed.
6. The damping piston moves synchronously with the valve plate and generates damping on the damping piston by means of damping oil in the damping cup, so that the movement speed of the valve plate is limited, and vibration or impact caused by the excessively high movement speed of the valve plate is avoided.
7. The buffer tank can realize the buffering of gas, guarantees that air supply fan's air inlet atmospheric pressure is stable, and then has guaranteed that the combustor burning is stable, avoids causing the influence or destroying cement clinker's production technology.
8. The air inlet of baffle-box is connected with air intake fan to guarantee to maintain the state of little negative pressure in the baffle-box, can enough avoid poisonous and harmful gas to escape, can guarantee air supply fan air inlet pressure stability again.
9. Can adjust poisonous and harmful gas's flow direction through discharge valve and input valve, when the rotary kiln during operation, poisonous and harmful gas directly enters into the combustor and burns, when the rotary kiln is out of work, poisonous and harmful gas directly discharges to the atmosphere after exhaust apparatus handles, has realized poisonous and harmful gas's continuous processing.
10. The gas treatment device can treat toxic and harmful gas, and the treated gas is discharged to the air through a chimney, so that the environment is prevented from being polluted.
Drawings
Fig. 1 is a schematic structural diagram of a toxic and harmful gas treatment device.
Fig. 2 is a front cross-sectional view of the mechanical air mixing valve.
In the figure: 1. the device comprises an input valve 2, a gas processing device 3, an air inlet fan 4, a mechanical air mixing valve 5, an electric air mixing valve 6, an inner air fan 7, a standby fan 8, an outer air fan 9, an unloading valve 10, an air supply valve 11, a regulating valve 12, a coal feeding scale 13, a pulverized coal fan 14, a combustor 15, a rotary kiln 16, a pressure gauge 17, a buffer tank 18, an input pipe 19, a valve rod 20, an upper sliding sleeve 21, a sealing gasket 22, a lower sliding sleeve 23, a damping end cover 24, an O-shaped sealing ring 25, a damping piston 26, a damping cup 27, a valve body 2701, a micro-pressure cavity 2702, a normal-pressure cavity 28, a spring 29, a regulating nut 30 and a valve plate.
Detailed Description
Fig. 1 to 2 are preferred embodiments of the present invention, and the present invention will be further explained with reference to fig. 1 to 2.
A poisonous and harmful gas disposal device comprises an air supply fan, an air mixing valve, a coal feeding scale 12, a coal powder fan 13 and a rotary kiln 15, wherein an air outlet of an input pipe 18 is communicated with an air inlet of a burner 14 of the rotary kiln 15 after being connected with the air supply fan in series, the air mixing valve is communicated with an air inlet of the air supply fan, an air inlet of the coal feeding scale 12 is communicated with an air outlet of the coal powder fan 13, and a coal outlet of the coal feeding scale 12 is communicated with a coal inlet of the burner 14. This poisonous and harmful gas processing apparatus's air supply fan can guarantee that input tube 18 keeps little negative pressure, and then has avoided poisonous and harmful gas to escape, causes the pollution to the environment, mixes the blast gate and can in time supply the air for air supply fan, avoids influencing the burning of buggy in the combustor because the air of input tube 18 input is not enough, can not cause the influence or destroy cement clinker's production technology, handles thoroughly poisonous and harmful gas.
The present invention is further described with reference to specific embodiments, however, it will be understood by those skilled in the art that the detailed description given herein with respect to the drawings is for better explanation and that the present invention is necessarily to be construed as limited to those embodiments, and equivalents or common means thereof will not be described in detail but will fall within the scope of the present application.
Specifically, the method comprises the following steps: as shown in fig. 1: this poisonous and harmful gas processing apparatus still includes exhaust apparatus, baffle-box 17 and air intake fan 3, input tube 18 is used for carrying poisonous and harmful gas, the gas outlet of input tube 18 is linked together with exhaust apparatus's air inlet and air intake fan 3's air inlet simultaneously, and be provided with discharge valve between the gas outlet of input tube 18 and exhaust apparatus's the air inlet, be provided with input valve 1 between the gas outlet of input tube 18 and the air inlet of air intake fan 3, can adjust poisonous and harmful gas's trend through input valve 1 and discharge valve, can enough handle poisonous and harmful gas through rotary kiln 15, can directly discharge in the air after again through exhaust apparatus handles poisonous and harmful gas.
The exhaust device comprises a gas treatment device 2 and a chimney, a gas inlet of the gas treatment device 2 is connected with an exhaust valve in series and then communicated with a gas outlet of the input pipe 18, and a gas outlet of the gas treatment device 2 is communicated with the chimney. In the present embodiment, the gas treatment device 2 is an activated carbon adsorption device, and may be a chemical treatment device.
The exhaust device also comprises an exhaust fan, the air inlet of the exhaust fan is communicated with the air outlet of the gas treatment device 2, and the air outlet of the exhaust fan is communicated with the chimney. A stop valve is provided between the exhaust fan and the gas processing device 2.
The air outlet of air intake fan 3 is linked together with the air inlet of baffle-box 17, and the air inlet of air supply fan is linked together with the gas outlet of baffle-box 17 to keep little negative pressure in guaranteeing baffle-box 17, can also guarantee that air supply fan's air inlet atmospheric pressure is stable, install manometer 16 on the baffle-box 17 for atmospheric pressure in the real-time supervision baffle-box 17.
Mix the blast gate and be linked together with the air inlet of baffle-box 17, in this embodiment, trade the blast gate and include that machinery mixes blast gate 4 and electronic blast gate 5 that mixes, machinery mixes blast gate 4 and electronic blast gate 5 and all is linked together with the air inlet of baffle-box 17 to guarantee that the atmospheric pressure in the baffle-box 17 is stable.
The air supply fan comprises an inner air fan 6, an outer air fan 8 and a standby fan 7, the air inlets of the inner air fan 6, the outer air fan 8 and the standby fan 7 are communicated with the air outlet of the buffer box 17, the air outlet of the inner air fan 6 is communicated with the air inlet of the inner air channel of the combustor 14, the air outlet of the outer air fan 8 is communicated with the outer air channel of the combustor 14, and air supply valves 10 are arranged between the inner air fan 6 and the inner air channel and between the outer air fan 8 and the outer air channel. The gas outlet of reserve fan 7 is linked together with the air inlet of interior wind passageway and the air inlet of outer wind passageway simultaneously, and all is provided with governing valve 11 between the air inlet of reserve fan 7 and interior wind passageway and between the air inlet of reserve fan 7 and outer wind passageway, and reserve fan 7 can be interior wind passageway or outer wind passageway air feed, avoids interior wind passageway or outer wind passageway air feed not enough, and adjusts the convenience.
The inner air fan 6, the outer air fan 8 and the standby fan 7 are all connected with the unloading valve 9, the air inlet of the unloading valve corresponding to the inner air fan 6 is communicated with the air outlet of the inner air fan 6, the air outlet is communicated with the buffer tank 17, the air inlet of the unloading valve corresponding to the outer air fan 8 is communicated with the air outlet of the outer air fan 8, the air outlet is communicated with the buffer tank 17, the air inlet of the unloading valve corresponding to the standby fan 7 is communicated with the air outlet of the standby fan 7, and the air outlet is communicated with the buffer tank 17, so that the situation that the calcination of cement clinker is influenced due to overlarge air pressure in the inner air channel or the outer air channel can be.
The air outlet of the pulverized coal fan 13 is communicated with the air inlet of the coal feeding scale 12, and the coal outlet of the coal feeding scale 12 is communicated with the coal inlet of the burner 14, so that pulverized coal is provided for the burner 14, and the heat in the rotary kiln 15 is ensured to be sufficient.
As shown in fig. 2: the mechanical air mixing valve comprises a valve body 27, a valve plate 30 and a damping device, wherein an input port and an output port are formed in the valve body 27, the valve plate 30 is arranged between the input port and the output port, a sealing portion matched with the valve plate 30 is arranged in the valve body 27, and the damping device is connected with the valve plate 30. Valve plate 30 of this machinery air mixing valve is mutually supported with the sealing of valve body 27, with input port and delivery outlet disconnection, this machinery air mixing valve is vertical when using, rely on the tight sealing of gravity compacting of valve plate 30, thereby realize sealedly, and rely on the pressure differential of valve plate 30 upper and lower both sides to realize opening between valve plate 30 and the sealing, thereby realized maintaining the pressure on valve body 27 upper portion in normal range, the pressure that maintains in the baffle-box 17 promptly is in normal range, damping device can produce the damping to the motion of valve plate 30, avoid valve plate 30 velocity of motion too fast and the problem of vibration and impact appears, sealed reliable between valve plate 30 and the sealing has been guaranteed, and then guaranteed machinery air mixing valve reliable operation.
The valve body 27 is a vertically arranged cylinder, the upper end and the lower end of the valve body 27 are both arranged in an open mode, the upper end of the valve body 27 is an output port, and one side of the lower portion of the valve body 27 is an input port. The valve body 27 is in a step shape with the inner diameter of the upper end larger than that of the lower end, a micro-pressure cavity 2701 is formed at the upper part of the inner cavity of the valve body 27, a normal-pressure cavity 2702 is formed at the lower part of the inner cavity of the valve body 27, and the shoulder part of the valve body 27 is a sealing part.
The valve plate 30 is discoid, and valve plate 30 and valve body 27 coaxial setting, and the diameter of valve plate 30 is less than the internal diameter of minute pressure chamber 2701 of valve body 27, and is greater than the internal diameter of ordinary pressure chamber 2702 to can realize sealedly with the sealing phase cooperation. The middle part of the valve plate 30 is protruded upwards, so that the deformation resistance of the valve plate 30 is improved, and the reliable sealing between the valve plate 30 and the sealing part is ensured.
This machinery blast valve that mixes still includes valve rod 19, and valve rod 19 and the coaxial setting of valve body 27, damping device set up the downside at valve body 27, and nut and valve plate 30 detachable are passed through to the upper end of valve rod 19 and are connected, and the lower extreme of valve rod 30 links to each other with damping device.
The upper side of the sealing part of the valve body 27 is provided with a sealing gasket 21, and the sealing gasket 21 is made of polyurethane, so that the sealing reliability between the valve plate 30 and the sealing part is ensured.
The lower extreme detachable of valve body 27 installs damping end cover 23, and damping end cover 23 is connected with the lower extreme detachable of valve body 27. The middle part of valve body 27 is provided with the baffle, and the baffle setting is provided with a plurality of intercommunication mouths on the upper portion of ordinary pressure chamber 2702, and a plurality of intercommunication mouths encircle the axis interval equipartition of valve body 27 to with ordinary pressure chamber 2702 and minute-pressure chamber 2701 intercommunication.
The middle part coaxial arrangement of baffle has last sliding sleeve 20, and coaxial arrangement has lower sliding sleeve 22 on the damping end cover 23, goes up the material of sliding sleeve 20 and lower sliding sleeve 22 and is the hard wear resistant plastic, goes up sliding sleeve 20 and lower sliding sleeve 22 and all slides the cover and establish outside valve rod 19 to realized the direction to valve rod 19, guaranteed that valve rod 19 only can take place the removal of axis direction, guaranteed to seal reliably between valve plate 30 and the sealing.
The damping device comprises a damping cup 26 and a damping piston 25, the damping cup 26 is cylindrical, the lower end of the damping cup is closed, the upper end of the damping cup 26 is detachably connected with the damping end cover 23, and an O-shaped sealing ring 24 is arranged between the damping cup 26 and the damping end cover 23. An O-ring seal 24 is also provided between the damping end cap 23 and the valve stem 19, and the O-ring seal 24 is provided on the lower side of the lower sliding sleeve 22 to ensure that the upper opening of the damping cup 26 is closed. The damping piston 25 is coaxially arranged in the damping cup 26, the damping piston 25 is in sliding connection with the damping cup 26, and the lower end of the valve rod 19 is connected with the damping piston 25 and drives the valve rod to synchronously lift. In the present embodiment, the diameter of the damping piston 25 is smaller than the inner diameter of the damping cup 26, so that a communication channel is formed between the inner wall of the damping cup 26 and the damping piston 25, and the inner cavities of the damping cup 26 on both sides of the damping piston 25 are communicated.
When the mechanical air mixing valve is used, the upper air of the valve plate 30 is under slight negative pressure, and the lower air is under atmospheric pressure. When the upper pressure of the valve plate 30 is in the normal range, the difference between the sum of the gravity of the valve plate 30 and the valve rod 19 and the sum of the pressure generated by the elastic force of the spring 28 and the pressure difference between the upper side and the lower side of the valve plate 30, namely the balance force, is greater than 0, the valve plate 30 presses the sealing part, namely the sealing part is sealed between the valve plate 30 and the sealing part, and the mechanical air mixing valve is in a closed state.
When the micro negative pressure of the gas on the upper portion of the valve plate 30 is lowered, the pressure difference between the upper side and the lower side of the valve plate 30 is increased, the upward acting force on the valve plate 30 is increased, when the balance force is smaller than 0, the valve plate 30 and the valve rod 19 move upward, the space between the valve plate 30 and the sealing portion is opened, the air on the lower portion of the valve plate 30 enters the upper portion of the valve plate 30 through the gap between the valve plate 30 and the sealing portion, the pressure of the gas on the upper portion of the valve plate 30 is increased, the pressure difference between the upper side and the lower side of the valve plate 30 is reduced, meanwhile, the compression displacement of the spring 28 is reduced, the elastic force is also reduced. At this time, the pressure of the gas above the valve plate 30 is continuously increased, the valve plate 30 and the valve rod 19 are slowly moved downward, and the mechanical air mixing valve is closed after the valve plate 30 is brought into contact with the sealing portion.
In the process that the valve plate 30 and the valve rod 19 ascend, the damping piston 25 also ascends synchronously, the damping oil in the upper cavity and the lower cavity of the damping cup 26 generates pressure difference, the damping oil in the upper cavity flows to the lower cavity through a communication channel between the damping piston 25 and the damping cup 26, the valve plate 30 and the valve rod 19 are ensured to move stably and slowly, and vibration and impact are avoided.
The working process of the toxic and harmful gas treatment device is as follows: when the rotary kiln 15 does not work, the input valve 1 is closed, the exhaust valve is opened, and at the moment, the poisonous and harmful gas input by the input pipe 18 is treated by the gas treatment device 2, is sent into the chimney by the exhaust fan and is directly discharged into the air through the chimney.
When the rotary kiln 15 during operation, air inlet fan 3 sends into in buffer tank 17 poisonous and harmful gas, interior air fan 6 sends into the interior wind passageway of combustor 14 poisonous and harmful gas in, outer air fan 8 sends into the outer wind passageway of combustor 14 poisonous and harmful gas in, and accomplish the incineration disposal of poisonous and harmful gas, and make buffer tank 17 maintain the negative pressure, the machinery mixes blast gate 4 and electronic blast gate 5 that mixes and can avoid the atmospheric pressure in buffer tank 17 to hang down, thereby influence the air supply volume of interior blast gate 6 and outer blast gate 8. The air inlet fan 3 is a variable frequency fan, and the stability of air pressure in the buffer box 17 is further ensured.
The standby fan 7 can supply air for the inner air channel and can also supply air for the outer air channel, so that sufficient air supply of the inner air channel and the outer air channel is ensured.
When the pressure of the air outlet of the inner air fan 6, the outer air fan 8 or the standby fan 7 is too high, the corresponding unloading valve 9 is unloaded, toxic and harmful gas is discharged into the buffer tank 17, the stable operation of the combustor 14 is ensured, and the sufficient heat in the rotary kiln 15 is further ensured.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical substance of the present invention still belong to the protection scope of the technical solution of the present invention.
Claims (10)
1. A poisonous and harmful gas treatment device is characterized in that: the coal feeding system comprises an air supply fan, an air mixing valve, a coal feeding scale (12), a coal powder fan (13) and a rotary kiln (15), wherein an air outlet of an input pipe (18) is communicated with an air inlet of a combustor (14) of the rotary kiln (15) after being connected with the air supply fan in series, the air mixing valve is communicated with an air inlet of the air supply fan, an air inlet of the coal feeding scale (12) is communicated with an air outlet of the coal powder fan (13), and a coal outlet of the coal feeding scale (12) is communicated with a coal inlet of the combustor (14).
2. The toxic and harmful gas treatment device according to claim 1, wherein: the air supply fan comprises an inner air fan (6) and an outer air fan (8), air inlets of the inner air fan (6) and the outer air fan (8) are communicated with an air outlet of an input pipe (18) at the same time, an air outlet of the inner air fan (6) is communicated with an air inlet of an inner air channel of the combustor (14), an air outlet of the outer air fan (8) is communicated with an outer air channel of the combustor (14), and an air mixing valve is communicated with the air inlets of the inner air fan (6) and the outer air fan (8) at the same time.
3. The toxic and harmful gas treatment device according to claim 2, wherein: the air supply fan further comprises a standby fan (7), an air inlet of the standby fan (7) is communicated with an air outlet of the input pipe (18), an air outlet of the standby fan (7) is communicated with an air inlet of an inner air channel of the combustor (14) and an air inlet of an outer air channel at the same time, a regulating valve (11) is arranged between the air outlet of the standby fan (7) and the inner air channel of the combustor (14) and between the air outlet of the standby fan and the outer air channel, and the air mixing valve is further communicated with the air inlet of the standby fan (7).
4. The toxic and harmful gas treatment device according to any one of claims 1 to 3, wherein: the air mixing valve comprises a mechanical air mixing valve (4) and an electric air mixing valve (5), and the mechanical air mixing valve (4) and the electric air mixing valve (5) are communicated with an air inlet of the air supply fan.
5. The toxic and harmful gas treatment device according to claim 4, wherein: the mechanical air mixing valve (4) comprises a valve body (27), a valve plate (30) and a damping device, an input port and an output port are formed in the valve body (27), the valve plate (30) is arranged between the input port and the output port, a sealing portion matched with the valve plate (30) is arranged in the valve body (27), and the damping device is connected with the valve plate (30).
6. The toxic and harmful gas treatment device of claim 5, wherein: the damping device comprises a damping cup (26) and a damping piston (25), the damping cup (26) is installed on a valve body (27), the damping piston (25) is arranged in the damping cup (26) in a sliding mode, a valve plate (30) is connected with the damping piston (25) and drives the damping piston to move synchronously, damping oil is arranged in the damping cup (26), and inner cavities of the damping cups (26) on two sides of the damping piston (25) are communicated.
7. The toxic and harmful gas treatment device according to claim 1, wherein: the air mixing device is characterized by further comprising a buffer tank (17), an air outlet of the input pipe (18) is communicated with an air inlet of the buffer tank (17), an air inlet of the air supply fan is communicated with an air outlet of the buffer tank (17), and the air mixing valve is communicated with an air inlet of the buffer tank (17).
8. The toxic and harmful gas treatment device according to claim 7, wherein: the air inlet of the air inlet fan (3) is communicated with the air outlet of the input pipe (18), and the air outlet of the air inlet fan (3) is communicated with the buffer tank (17).
9. The toxic and harmful gas treatment device according to claim 1, wherein: the air supply device is characterized by further comprising an exhaust device, the air outlet of the input pipe (18) is communicated with the air inlet of the air supply fan and the air inlet of the exhaust device at the same time, an input valve (1) is arranged between the air outlet of the input pipe (18) and the air inlet of the air supply fan, and an exhaust valve is arranged between the air outlet of the input pipe (18) and the exhaust device.
10. The toxic and harmful gas treatment device according to claim 9, wherein: the exhaust device comprises a gas treatment device (2) and a chimney, wherein a gas inlet of the gas treatment device (2) is communicated with a gas outlet of the input pipe (18), and a gas outlet of the gas treatment device (2) is communicated with the chimney.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021135984.1U CN212299026U (en) | 2020-06-18 | 2020-06-18 | Poisonous and harmful gas processing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021135984.1U CN212299026U (en) | 2020-06-18 | 2020-06-18 | Poisonous and harmful gas processing device |
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| CN212299026U true CN212299026U (en) | 2021-01-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111561704A (en) * | 2020-06-18 | 2020-08-21 | 山东东华水泥有限公司 | Poisonous and harmful gas processing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111561704A (en) * | 2020-06-18 | 2020-08-21 | 山东东华水泥有限公司 | Poisonous and harmful gas processing device |
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