CN210544383U - VOCs organic waste gas treatment system for pre-burning and glue discharging based on resistance card - Google Patents
VOCs organic waste gas treatment system for pre-burning and glue discharging based on resistance card Download PDFInfo
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- CN210544383U CN210544383U CN201921140409.8U CN201921140409U CN210544383U CN 210544383 U CN210544383 U CN 210544383U CN 201921140409 U CN201921140409 U CN 201921140409U CN 210544383 U CN210544383 U CN 210544383U
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Abstract
The utility model discloses a based on resistance card presintering VOCs organic waste gas treatment system for binder removal, it includes: the device comprises a push plate tunnel kiln, wherein a waste gas treatment system is arranged on the push plate tunnel kiln; the waste gas treatment system comprises a waste gas recovery pipeline, a centrifugal induced draft fan, a heating cavity, a platinum-palladium composite precious metal catalyst, a heat energy recovery exchanger and a high-altitude exhaust pipe which are sequentially connected through a pipeline; the device also comprises an electric control element; the device comprises a control operation box, a temperature controller and a frequency converter for controlling the rotating speed of a centrifugal fan are arranged in the control operation box, and the control operation box is electrically connected with a temperature measuring sensor and the centrifugal fan through leads respectively; the utility model provides a based on resistance card is preburning VOCs for binder removal organic waste gas treatment system, it is through setting up this exhaust treatment system, can heat waste gas and reach behind the index that accords with industrial environment and discharge through the high altitude pipeline after catalytic unit oxidative decomposition, and can carry out secondary recycle to the waste heat, play energy saving and emission reduction consumption reduction effect.
Description
Technical Field
The utility model relates to a zinc oxide varistor sintering manufacturing process field especially relates to a based on VOCs organic waste gas processing system for binder removal of resistor card preburning.
Background
The manufacturing process of the front-end core technology of the zinc oxide resistance card in the lightning arrester core body industry at present mainly comprises the following steps: 1. grinding and preparing the trace additives; 2. mixing zinc oxide and additives to form granulation powder; 3. pressing and forming; 4. pre-burning and glue discharging of the push plate tunnel kiln; 5. the body electrical characteristic push plate tunnel kiln firing and the like. In order to enable the organic material to achieve ideal molecular uniform combination in the processes of front-end additive, granulation powder processing and compression molding, a certain amount of organic chemical agent is required to be added as an auxiliary material in the process so as to achieve ideal pressure-sensitive semiconductor volt-ampere characteristics. The chemical auxiliary materials added comprise: polyvinyl alcohol, aluminum nitrate, boric acid, tributyl ester, xylene, and the like. After the granulated powder prepared by the drying and spraying tower is molded and pressed to form the piezoresistor blank, the product enters a sintering stage of the push plate tunnel kiln, and the sintering of the push plate tunnel kiln is completed by two stages. The first stage is glue discharging and presintering below 800 ℃, namely, the added chemical auxiliary materials are discharged through proper temperature combustion, and the second stage is high-temperature semi-conductive pressure-sensitive characteristic conversion sintering at 1200 ℃.
The first stage of the push plate kiln is completed in three stages of pre-sintering temperature raising to 100-260 deg.c, constant temperature porosity filling to 350-800 deg.c and temperature lowering to 700-100 deg.c. In the first four temperature zone heating and glue discharging stages, the temperature is increased from the ambient temperature to 260 ℃, organic chemical organic auxiliary material substances in the product in the temperature zone can form boiling points to volatilize and release a large amount of VOCs organic compounds, the released VOCs organic compound mixed gas is discharged through exhaust pipe orifices at the tops of the four zones in front of the pushed slab kiln, 30KG organic gas can be discharged according to the calculation of 3 tons of products preburning in the four-push tunnel furnace every day, the organic gas contains a large amount of harmful substances, and the environment is greatly polluted.
The current methods for treating the waste gas in the industry are divided into the following two types:
firstly, the discharged 260 ℃ organic gas is cooled to be below 80 ℃ by water spraying, decomposed by UV light oxygen and then absorbed by activated carbon to be discharged from the high altitude of a draught fan pipeline; the main disadvantages are: a large amount of wastewater generated in the cooling process, the filter element body and the activated carbon are saturated and need to be replaced periodically, secondary hazardous waste is caused, and the wastewater needs to be recycled and treated by professional departments, so that the cost is extremely high;
secondly, the discharged 260 ℃ organic gas is heated to the temperature of more than 420 ℃ through a gas furnace or an electric heating furnace, and the oxidation and decomposition are accelerated by a composite catalytic device to generate harmless CO2And H2O, discharging through a pipeline; the main disadvantages are: the organic waste gas must consume a large amount of energy in the process of heating to the ideal catalytic temperature, and great cost is brought.
In view of the above, there is a need to design a VOCs organic waste gas treatment system for resistor card pre-burning glue discharging that overcomes the above technical problems.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model aims at providing a based on resistance card is preburning VOCs organic waste gas processing system for binder removal, it is through setting up this exhaust treatment system, can heat waste gas and reach behind the catalytic unit oxidative decomposition and discharge through high altitude pipeline after the index that accords with industrial environment and discharge, and can carry out secondary recycle to the waste heat, play energy saving and emission reduction and consumption reduction effect.
In order to realize the purpose, the utility model discloses the technical scheme who takes is: the utility model provides a based on VOCs organic waste gas processing system for glue discharging of resistor card presintering which includes:
the device comprises a push plate tunnel kiln, wherein a waste gas treatment system is arranged on the push plate tunnel kiln;
the waste gas treatment system comprises a waste gas recovery pipeline, a centrifugal induced draft fan, a heating cavity, a platinum-palladium composite precious metal catalyst, a heat energy recovery exchanger and a high-altitude exhaust pipe which are sequentially connected through a pipeline;
the waste gas recovery pipeline is in butt joint with a waste gas outlet pipe of a heating and glue discharging area at the front end of the push plate tunnel kiln; the embedded heating cavity is arranged on a high-temperature heat preservation area at the middle rear end of the push plate tunnel kiln;
the temperature controller and the frequency converter are respectively and electrically connected with a temperature measuring sensor and a centrifugal draught fan through leads; the temperature measuring sensor is arranged at the position of the discharge port of the platinum-palladium composite noble metal catalyst.
The VOCs organic waste gas treatment system for pre-burning and glue discharging based on the resistor disc is characterized in that,
the push plate tunnel kiln sequentially comprises an upper heat insulation layer, an upper heating layer, a push plate, a lower heating layer and a lower heat insulation layer from top to bottom;
the push plate tunnel kiln sequentially comprises a heating and glue discharging area, a high-temperature heating area, a high-temperature heat preservation area and a cooling area from front to back;
the waste gas outlet pipe is connected to the upper heating layer of the temperature rise glue discharging area and penetrates out of the push plate tunnel kiln from the upper heat insulation layer;
the heating cavity is embedded in the position of the upper heat-insulating layer corresponding to the high-temperature heat-insulating area.
The VOCs organic waste gas treatment system for pre-burning and glue discharging based on the resistor disc is characterized in that,
the heating cavity is formed by bending and welding a 304 stainless steel plate with the thickness of 4mm, and a temperature-resistant protective layer is arranged at the bottom of the heating cavity; the temperature-resistant protective layer is arranged on the upper heating layer; an air inlet and an air outlet are respectively arranged at two ends of the heating cavity;
the temperature resistant protective layer is formed by paving a layer of high-aluminum light-weight bricks, and the size of each high-aluminum light-weight brick is 240mm x 120mm x 4 mm.
The VOCs organic waste gas treatment system for glue discharging based on resistor card preburning comprises:
the heat energy recovery exchanger is externally connected with a cubic heat-preservation water tank, and a water outlet at the bottom of the heat-preservation water tank is connected with a water inlet at the bottom of the heat energy recovery exchanger through a pipeline circulating pump; a water outlet at the top end of the heat energy recovery exchanger is connected with a high-level water inlet of the heat preservation water tank through a pipeline;
and a cold water replenishing port and a hot water outlet are respectively arranged on the other side of the heat preservation water tank.
As above, based on VOCs organic waste gas processing system for resistor card preburning binder removal, wherein, still include:
and the air damper is arranged on the pipeline close to the rear end of the heat energy recovery exchanger.
As above, based on VOCs organic waste gas processing system for resistor card preburning binder removal, wherein, still include:
the waste gas inlet detection port is arranged on a pipeline between the centrifugal induced draft fan and the heating cavity;
and the exhaust detection port is arranged on the high-altitude exhaust pipe and is close to the rear end of the air adjusting door.
The VOCs organic waste gas treatment system for pre-burning and glue discharging based on the resistor disc is characterized in that,
the temperature measuring sensor is a K-type temperature measuring thermocouple, and the type of the temperature measuring sensor is a WRNK-231 thermocouple;
the temperature controller adopts a Nippon electric SR4-8P-1l temperature control meter;
the frequency converter adopts a Delwey frequency converter CDI-EM60G1R5T 4B;
the model of the centrifugal draught fan is WDF type 3A-1.1 KW.
Compared with the prior art, the utility model discloses the beneficial effect who produces mainly embodies:
the utility model discloses a because resistance card presintering VOCs organic waste gas processing system for binder removal sets up stainless steel heating cavity through the high temperature heat preservation district at push pedal tunnel kiln, in the stainless steel heating cavity of back district is returned to the organic waste gas that front end binder removal technology volatilizees out through the fan pipeline, reaches the index that accords with industrial environment emission after the high temperature heating in middle and back portion stove district is oxidized and decomposed by catalytic unit and is discharged through the high altitude pipeline;
the utility model discloses a VOCs organic waste gas treatment system for pre-burning and binder removal based on resistance card, which is characterized in that a heat exchanger is arranged at the discharge port of a catalytic device to carry out secondary recycling on waste heat, thereby playing the effects of saving energy, reducing emission and reducing consumption;
the utility model discloses a because resistance card presintering is arranged and is glued with VOCs organic waste gas processing system for, this kind of structural style is under the condition that does not change the product and presintering the binder removal technology, and the energy is used in no extra, invests in effectively rational utilization to presintering push pedal kiln structural feature under the very little equipment cost, and VOCs organic waste gas high-efficient purification treatment in the production process reaches the emission standard that accords with industry environmental protection index; the method has the characteristics of small floor area, no secondary pollution, extremely low investment cost, convenient operation and management, obvious economic benefit, long-term safe and reliable operation and the like.
Drawings
Fig. 1 is a schematic structural diagram of a resistance chip pre-burning glue-discharging-based VOCs organic waste gas treatment system of the utility model;
fig. 2 is an electrical schematic diagram of a resistance chip pre-burning glue-discharging-based VOCs organic waste gas treatment system of the utility model;
fig. 3 is a schematic structural view of the heating chamber of the present invention;
description of reference numerals:
1. push plate tunnel kiln 11, waste gas outlet pipe 12 and upper heat insulation layer
13. An upper heating layer 14, a push plate 15 and a lower heating layer
16. A lower heat-insulating layer 111, a heating and glue-discharging area 112 and a high-temperature heating area
113. High temperature insulation zone 114, cooling zone
2. Waste gas treatment system 21, waste gas recovery pipeline 22, centrifugal draught fan
23. Heating cavity 24, platinum-palladium composite precious metal catalyst 25 and heat energy recovery exchanger
26. High-altitude exhaust pipe 27, temperature measuring sensor 28 and temperature-resistant protective layer
29. Damper 211, exhaust gas inlet port 212, and exhaust gas detection port
251. Water inlet 252, water outlet 231, air inlet
232. Air outlet
3. Electric control element 31, control operation box 32 and temperature controller
33. Frequency converter 34 and circuit breaker
4. A heat preservation water tank 41, a water outlet 42 and a water inlet
43. Cold water replenishing port 44 and hot water outlet
5. Pipeline circulating pump
Detailed Description
In order to facilitate understanding of the purpose, technical solution and effect of the present invention, the present invention will now be described in further detail with reference to the embodiments.
As shown in fig. 1 and fig. 2, the utility model discloses a based on resistance card is preburning VOCs organic waste gas treatment system for binder removal, it includes:
the kiln comprises a push plate tunnel kiln 1, wherein a waste gas treatment system 2 is arranged on the push plate tunnel kiln 1;
the waste gas treatment system 2 comprises a waste gas recovery pipeline 21, a centrifugal induced draft fan 22, a heating cavity 23, a platinum-palladium composite precious metal catalyst 24, a heat energy recovery exchanger 25 and a high-altitude exhaust pipe 26 which are sequentially connected through pipelines;
the waste gas recovery pipeline 21 is in butt joint with a waste gas outlet pipe 11 of a heating and glue discharging area 111 at the front end of the push plate tunnel kiln 1; the embedded heating cavity 23 is arranged above the high-temperature heat preservation area 113 at the middle rear end of the push plate tunnel kiln 1;
the device also comprises an electric control element 3 which comprises a control operation box 31, a temperature controller 32, a frequency converter 33 for controlling the rotating speed of the centrifugal fan and a circuit breaker 33 are arranged in the control operation box, and the temperature controller 32 and the frequency converter 33 are respectively and electrically connected with a temperature measuring sensor 27 and a centrifugal draught fan 22 through leads; the temperature measuring sensor 27 is arranged at the position of the discharge port of the platinum-palladium composite precious metal catalyst 24.
The utility model discloses a based on resistance card is preburning VOCs organic waste gas treatment system for binder removal, its in-process that uses:
after the pre-burning glue discharging and pushing tunnel plate kiln is heated and heated under the working condition, starting to operate when a product starts to enter; simultaneously starting the temperature controller 32 and the frequency converter 33 for controlling the rotating speed of the centrifugal fan; the temperature measuring system works, and the temperature of the catalyst is set to be 420 ℃;
organic waste gas with the temperature of 100-260 ℃ discharged by the front-end glue discharging process enters the waste gas recovery pipeline 21 from the waste gas outlet pipe 11; high-concentration VOCs organic waste gas enters the stainless steel heating cavity 23 to be heated for the second time under the action of the centrifugal draught fan 22 until the temperature is raised to be higher than 420 ℃, and the organic waste gas is oxidized and decomposed by the platinum-palladium composite precious metal catalyst 24 to form carbon dioxide and water vapor which meet the emission index of an industrial environment and then is discharged through the high-altitude exhaust pipe 26; meanwhile, a heat energy recovery exchanger 25 is arranged at the discharge port end of the platinum-palladium composite precious metal catalyst 24, and can perform secondary recovery and utilization on waste heat, so that the effects of saving energy, reducing emission and reducing consumption are achieved;
arranging a temperature measuring sensor 27 at the discharge port, wherein the temperature measuring sensor 27 is used for detecting the real-time temperature of the gas at the discharge port of the catalytic converter, transmitting a temperature signal to a temperature controller 32, comparing the actual temperature with the target temperature, converting a temperature difference signal into a 4-20mA current signal to control a frequency converter 33 to adjust the rotating speed of the centrifugal fan, accelerating the centrifugal fan when the temperature of the discharge port rises, and decelerating when the temperature of the discharge port does not rise; and controlling the catalyst to operate in an optimal state in real time, so that the decomposition of the VOCs organic gases is maximized.
The utility model discloses a because resistance card presintering is arranged and is glued with VOCs organic waste gas processing system for, in the organic waste gas outlet pipe 11 of 14 tunnel furnaces of presintering row of glue push pedal near the product inlet port installation centrifugal draught fan 22, adjust the amount of wind, the centrifugal draught fan export is attached the detection mouth before organic waste gas is not handled, detect the concentration content regularly;
the furnace body structure of the tunnel furnace with the preburning glue-discharging push plate 14 is designed and improved, a stainless steel heating cavity 23 is embedded in the position of a high-temperature heat preservation area 113, and the rear end of the furnace body is used for cooling and radiating to carry out secondary heating on organic gas, so that the effects of saving energy, reducing emission and reducing consumption are achieved;
as shown in fig. 1, the utility model discloses a VOCs organic waste gas treatment system for pre-burning and glue discharging based on resistance card, the push plate tunnel kiln 1 sequentially comprises an upper heat preservation layer 12, an upper heating layer 13, a push plate 14, a lower heating layer 15 and a lower heat preservation layer 16 from top to bottom; the push plate tunnel kiln 1 sequentially comprises a heating and glue discharging area 111, a high-temperature heating area 112, a high-temperature heat preservation area 113 and a cooling area 114 from front to back; the waste gas outlet pipe 11 is connected to the upper heating layer 13 of the temperature rise glue discharging area 111 and penetrates out of the push plate tunnel kiln 1 from the upper heat insulation layer 12; the heating cavity 23 is embedded in the position of the upper heat-insulating layer 12 corresponding to the high-temperature heat-insulating region 113.
The utility model discloses a because resistance card presintering VOCs organic waste gas treatment system for binder removal, wherein, the temperature range of this intensification binder removal district 111 is 100-265 ℃; the temperature range of the high-temperature heating area 112 is 300-600 ℃; the temperature range of the high-temperature heat preservation area 113 is 700-785 ℃, and the temperature range of the cooling area 114 is 493-413 ℃.
It should be noted that the heating cavity 23 is disposed at a critical position of the high temperature insulation region 113 and the cooling region 114, and the organic gas is heated secondarily by cooling and dissipating heat at the rear end of the furnace body.
As shown in fig. 3, in the utility model, the heating cavity 23 is formed by bending and welding 304 stainless steel plates with a thickness of 4mm, and a temperature-resistant protective layer 28 is attached to the bottom of the heating cavity; both ends of the heating cavity 23 are respectively provided with an air inlet 231 and an air outlet 232; the temperature-resistant protective layer 28 is arranged on the upper heating layer 13; the temperature resistant protective layer 28 is formed by laying a layer of high-alumina light-weight bricks, and the size of each high-alumina light-weight brick is 240mm x 120mm x 4 mm.
The utility model discloses a because resistance card presintering VOCs organic waste gas treatment system for binder removal, heating cavity 23 is bent and welded for the thick 304 stainless steel panel of 4mm and forms, according to the airtight cuboid of push pedal tunnel kiln effective heating width processing preparation, leave not unidimensional air inlet 231 and gas outlet 232 at both ends respectively, organic waste gas gets into through centrifugal draught fan 22 and gets into in this heating cavity 23 from air inlet 231 of this heating cavity 23, this organic waste gas is after absorbing the high temperature heat, get into platinum palladium composite noble metal catalyst 23 by gas outlet 232;
it should be noted that, taking a four-push tunnel kiln as an example, the length, width, height, and dimension of the heating cavity 22 are as follows: 1400mm × 3200mm × 220mm, the diameter of the gas inlet 231 is 30mm, the gas outlet 232 is 400mm × 400mm, the size of the heating chamber 22 can be determined according to the structure of the furnace body, and the above values are not limited specifically;
the air inlet 231 is connected with a pipeline through a flange, and the pipeline is communicated with the centrifugal air draught fan 22; the gas outlet 232 is communicated with the inlet end of the platinum-palladium composite precious metal catalyst 24.
The temperature-resistant protective layer 28 is formed by laying a layer of high-aluminum light-weight bricks, and the size of each high-aluminum light-weight brick is 240mm by 120mm by 4 mm; the temperature-resistant protective layer 28 is made of high-aluminum light-weight polymer bricks, the density is 1.5g/cm3, the heat conductivity coefficient is 0.65, and the customized size is 240mm x 120mm x 4 mm; the high-alumina light-weight polymer brick has the surface contact temperature of 1350 ℃ and good thermal stability, and is widely used for the furnace lining of the rotary kiln at the top of an electric furnace.
The utility model discloses a because resistance card presintering is arranged and is glued with VOCs organic waste gas treatment system, 23 bottoms in stainless steel heating cavity are with temperature resistant protective layer 28, prevent that the high temperature from causing the cavity to damage.
As shown in fig. 1, the utility model discloses a based on resistance card is preburning VOCs organic waste gas processing system for binder removal, heat recovery exchanger 25 connects a cubic holding water tank 4 outward, and the bottom delivery port 41 of this holding water tank 4 connects the water inlet 251 of this heat recovery exchanger 25 bottom through pipeline circulating pump 5; a water outlet 252 at the top end of the heat energy recovery exchanger 25 is connected with the high-level water inlet 42 of the heat preservation water tank 4 through a pipeline; and a cold water replenishing port 43 and a hot water outlet 43 are respectively arranged on the other side of the heat preservation water tank 4.
The utility model discloses a because resistance card presintering is arranged glue and is used VOCs organic waste gas treatment system, heat recovery exchanger 25 connects a cubic holding water box 4 outward, this holding water box 4's bottom delivery port 41 connects the water inlet 251 of this heat recovery exchanger 25 bottom through pipeline circulating pump 5, low temperature water gets into heat recovery exchanger 25 and absorbs the heat and flows back to holding water box 4 high-order water inlet 42 from upper portion's delivery port 252, the accumulated absorption waste heat of recirculation, holding water box 4's opposite side has cold water moisturizing mouth 43 and hot water delivery port 44 respectively, this hot water delivery port is used for the life to wash one's face and rinse one's mouth;
taking a four-push tunnel furnace as an example, the platinum-palladium composite noble metal catalyst 24 is set to have a temperature of 420 ℃, an exhaust flow rate of 3 cubic/second and a caliber
The power of the 750W pipeline circulating pump is 6 cubic water circulation volume per hour, cold water at the normal temperature of 25 ℃ can be heated to 55 ℃ within 5 hours, the constant temperature is kept unchanged, the energy consumption of the glue discharging pre-burning furnace is not increased, and effective energy utilization is achieved.
As shown in fig. 1, the utility model discloses a based on resistance card is preburning VOCs organic waste gas treatment system for binder removal still includes: and a damper 29 provided on the pipe immediately behind the heat recovery exchanger 25.
The utility model discloses a based on resistance card presintering VOCs organic waste gas treatment system for binder removal sets up air damper 29 and is used for controlling the air output size under the different ambient temperature of all the year, installs heat recovery interchanger 25 subsidiary effectively and utilizes heat energy.
As shown in fig. 1, the utility model discloses a based on resistance card is preburning VOCs organic waste gas treatment system for binder removal still includes: the waste gas inlet detection port 211 is arranged on a pipeline between the centrifugal induced draft fan 22 and the heating cavity 23; and an exhaust detection port 212 provided in the high-altitude exhaust pipe 26 and disposed in close proximity to the rear end of the damper 29.
Wherein, the waste gas inlet detection port 211 is used for periodically detecting the concentration content of the gas before the treatment; the exhaust gas detection port 212 is used to periodically detect the concentration content of the gas when the organic gas is exhausted.
As shown in fig. 1, in the VOCs organic waste gas treatment system for pre-burning and binder removal based on the resistor disc of the present invention, the temperature sensor 27 is a K-type temperature thermocouple, and the model thereof is a WRNK-231 thermocouple; the temperature controller 32 adopts a Nissan electric SR4-8P-1l temperature control meter; the frequency converter 33 adopts a Delwey frequency converter 33 CDI-EM60G1R5T 4B; the model of the centrifugal draught fan 22 is WDF type 3A-1.1 KW.
The utility model discloses a based on resistance card presintering is arranged and is glued with VOCs organic waste gas treatment system, according to this electric schematic diagram, three-phase four-wire system power supply closed QR circuit breaker 33, the electricity is gone up to converter 33 operation switch system, power switch is opened, temperature measurement system work, set for catalyst converter temperature 420 ℃, thermocouple sensor detects catalysis mouth temperature transmission to temperature controller 32 and target temperature contrast, turn into 4-20mA current signal control converter 33 with the temperature difference signal and adjust centrifugal fan rotational speed, arrange a mouthful temperature rising fan with higher speed, otherwise slow down, the operation of real-time control catalyst converter is at the optimum, VOCs organic gas decomposes and reaches the maximize.
It should be noted that the specification and model of each element are only the best embodiment, and are not used as specific limitations; moreover, the electronic components described in the electrical schematic diagram are all common components in the art, so the electronic components and the electrical connection diagram thereof used therein are all in the scope of the prior art, and thus the detailed description thereof is omitted when referring to the drawings.
The present invention has been further described with reference to the embodiments, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (7)
1. The utility model provides a based on VOCs organic waste gas processing system for glue discharging of resistor card presintering which characterized in that, it includes:
the device comprises a push plate tunnel kiln, wherein a waste gas treatment system is arranged on the push plate tunnel kiln;
the waste gas treatment system comprises a waste gas recovery pipeline, a centrifugal induced draft fan, a heating cavity, a platinum-palladium composite precious metal catalyst, a heat energy recovery exchanger and a high-altitude exhaust pipe which are sequentially connected through a pipeline;
the waste gas recovery pipeline is in butt joint with a waste gas outlet pipe of a heating and glue discharging area at the front end of the push plate tunnel kiln; the heating cavity is arranged on a high-temperature heat preservation area at the middle rear end of the push plate tunnel kiln;
the temperature controller and the frequency converter are respectively and electrically connected with a temperature measuring sensor and a centrifugal draught fan through leads; the temperature measuring sensor is arranged at the position of the discharge port of the platinum-palladium composite noble metal catalyst.
2. The VOCs organic waste gas treatment system for resistor disc pre-burning glue discharging based on claim 1 is characterized in that:
the push plate tunnel kiln sequentially comprises an upper heat insulation layer, an upper heating layer, a push plate, a lower heating layer and a lower heat insulation layer from top to bottom;
the push plate tunnel kiln sequentially comprises a heating and glue discharging area, a high-temperature heating area, a high-temperature heat preservation area and a cooling area from front to back;
the waste gas outlet pipe is connected to the upper heating layer of the temperature rise glue discharging area and penetrates out of the push plate tunnel kiln from the upper heat insulation layer;
the heating cavity is embedded in the position of the upper heat-insulating layer corresponding to the high-temperature heat-insulating area.
3. The VOCs organic waste gas treatment system for resistor disc pre-burning glue discharging based on claim 2 is characterized in that:
the heating cavity is formed by bending and welding a 304 stainless steel plate with the thickness of 4mm, and a temperature-resistant protective layer is arranged at the bottom of the heating cavity; the temperature-resistant protective layer is arranged on the upper heating layer; an air inlet and an air outlet are respectively arranged at two ends of the heating cavity;
the temperature resistant protective layer is formed by paving a layer of high-aluminum light-weight bricks, and the size of each high-aluminum light-weight brick is 240mm x 120mm x 4 mm.
4. The VOCs organic waste gas treatment system for resistor disc pre-burning glue discharging based on claim 1 is characterized in that:
the heat energy recovery exchanger is externally connected with a cubic heat-preservation water tank, and a water outlet at the bottom of the heat-preservation water tank is connected with a water inlet at the bottom of the heat energy recovery exchanger through a pipeline circulating pump; a water outlet at the top end of the heat energy recovery exchanger is connected with a high-level water inlet of the heat preservation water tank through a pipeline;
and a cold water replenishing port and a hot water outlet are respectively arranged on the other side of the heat preservation water tank.
5. The VOCs organic waste gas treatment system for resistor disc pre-burning glue discharging according to claim 1, further comprising:
and the air damper is arranged on the pipeline close to the rear end of the heat energy recovery exchanger.
6. The VOCs organic waste gas treatment system for resistor disc pre-burning glue discharging according to claim 5, further comprising:
the waste gas inlet detection port is arranged on a pipeline between the centrifugal induced draft fan and the heating cavity;
and the exhaust detection port is arranged on the high-altitude exhaust pipe and is close to the rear end of the air adjusting door.
7. The VOCs organic waste gas treatment system for resistor disc pre-burning glue discharging based on claim 1 is characterized in that:
the temperature measuring sensor is a K-type temperature measuring thermocouple, and the type of the temperature measuring sensor is a WRNK-231 thermocouple;
the temperature controller adopts a Nippon electric SR4-8P-1l temperature control meter;
the frequency converter adopts a Delwey frequency converter CDI-EM60G1R5T 4B;
the model of the centrifugal draught fan is WDF type 3A-1.1 KW.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921140409.8U CN210544383U (en) | 2019-07-19 | 2019-07-19 | VOCs organic waste gas treatment system for pre-burning and glue discharging based on resistance card |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921140409.8U CN210544383U (en) | 2019-07-19 | 2019-07-19 | VOCs organic waste gas treatment system for pre-burning and glue discharging based on resistance card |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115371430A (en) * | 2022-08-03 | 2022-11-22 | 南充三环电子有限公司 | Method for calculating fresh air volume in MLCC multilayer loading and glue discharging process |
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2019
- 2019-07-19 CN CN201921140409.8U patent/CN210544383U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115371430A (en) * | 2022-08-03 | 2022-11-22 | 南充三环电子有限公司 | Method for calculating fresh air volume in MLCC multilayer loading and glue discharging process |
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