阅读说明：本技术 一种节能环保型表干炉 (energy-saving environment-friendly surface drying furnace ) 是由 花世军 刘忠军 于 2019-07-31 设计创作，主要内容包括：本发明公开了一种节能环保型表干炉,属于表面干燥设备领域,一种节能环保型表干炉,包括表干炉本体,表干炉本体的上端固定连接有加热装置和废气处理装置,废气排放口处固定连接有第一排气管,第一排气管的外侧固定连接有外柱,外柱的下端固定连接有进液口,进液口上设有第一温度传感器,外柱的上端固定连接有出液口,出液口上设有第二温度传感器,第一排气管的外壁和外柱的内壁之间留设有流体空间,第一排气管的上端固定连接有粉尘收集器,第一排气管内固定连接有排风机,排风机位于靠近粉尘收集器的一侧,粉尘收集器固定连接有第二排气管的一端,第二排气管的另一端固定连接有废气净化装置,它可以实现使用方便,安全环保,提高能源的利用率。(The invention discloses an energy-saving environment-friendly surface drying furnace, belonging to the field of surface drying equipment, and comprising a surface drying furnace body, wherein the upper end of the surface drying furnace body is fixedly connected with a heating device and an exhaust gas treatment device, an exhaust gas discharge port is fixedly connected with a first exhaust pipe, the outer side of the first exhaust pipe is fixedly connected with an outer column, the lower end of the outer column is fixedly connected with a liquid inlet, a first temperature sensor is arranged on the liquid inlet, the upper end of the outer column is fixedly connected with a liquid outlet, a second temperature sensor is arranged on the liquid outlet, a fluid space is reserved between the outer wall of the first exhaust pipe and the inner wall of the outer column, the upper end of the first exhaust pipe is fixedly connected with a dust collector, an exhaust fan is fixedly connected in the first exhaust pipe and is positioned at one side close to the dust collector, the dust collector is fixedly connected with one end of a second exhaust, the energy-saving device can be used conveniently, is safe and environment-friendly, and improves the utilization rate of energy.)

1. The utility model provides an energy-concerving and environment-protective type table dry-oven, includes table dry-oven body (1), its characterized in that: the upper end of the surface drying furnace body (1) is fixedly connected with a heating device and a waste gas treatment device, the heating device comprises a heating device body, a heater (7) and a circulating fan (8), the upper end of the surface drying furnace body (1) is provided with an air supply opening (6), an air return opening (9) and a waste gas discharge opening (5), the air return opening (9) is positioned between the air supply opening (6) and the waste gas discharge opening (5), the waste gas discharge opening (5) is fixedly connected with a first exhaust pipe (10), the outer side of the first exhaust pipe (10) is fixedly connected with an outer column (103), the lower end of the outer column (103) is fixedly connected with a liquid inlet (101), the liquid inlet (101) is provided with a first temperature sensor, the upper end of the outer column (103) is fixedly connected with a liquid outlet (102), and the liquid outlet (102) is provided with a second, leave between the outer wall of first exhaust pipe (10) and the inner wall of outer post (103) and be equipped with fluid space (104), the upper end fixedly connected with dust collector (12) of first exhaust pipe (10), fixedly connected with exhaust fan (11) and fourth temperature sensor in first exhaust pipe (10), fourth temperature sensor is located the upside of exhaust fan (11), exhaust fan (11) are located the one side that is close to dust collector (12), the one end of dust collector (12) fixedly connected with second blast pipe (13), the other end fixedly connected with exhaust gas purification device (14) of second blast pipe (13), fixedly connected with third blast pipe (18) on exhaust gas purification device (14).

2. The energy-saving environment-friendly surface drying furnace as claimed in claim 1, is characterized in that: the liquid outlet device is characterized in that one end of a first guide pipe is fixedly connected to the liquid outlet (102), the other end of the first guide pipe is fixedly connected with a liquid storage device (15), the outer side of the liquid storage device (15) is wrapped with a heat insulation plate, the thickness of the heat insulation plate is 5-10cm, a third temperature sensor is arranged in the liquid storage device (15), a display control device (16) is fixedly connected to the liquid storage device (15), and the lower end of the liquid storage device (15) is fixedly connected with a liquid outlet valve.

3. The energy-saving environment-friendly surface drying furnace as claimed in claim 2, characterized in that: the heat insulation board is one of a high-temperature-resistant rock wool heat insulation board, a glass wool heat insulation board, a phenolic aldehyde composite material heat insulation board and a polystyrene resin heat insulation board.

4. The energy-saving environment-friendly surface drying furnace as claimed in claim 1, is characterized in that: be connected with material transportation system (17) on table dry-off oven body (1), the lower extreme fixedly connected with cleaning device (4) of material transportation system (17), table dry-off oven body (1) lower extreme fixedly connected with control box (3), cleaning device (4) are located the one end of keeping away from control box (3), the lower extreme fixedly connected with waste material accumulator (2) of cleaning device (4).

5. The energy-saving environment-friendly surface drying furnace as claimed in claim 4, wherein: cleaning device (4) include both sides backup pad (45), fixedly connected with back shaft (41) between both sides backup pad (45), the upper end fixedly connected with clearance dish (42) of back shaft (41), lower extreme fixedly connected with drive arrangement (44) of backup pad (45) one side, drive arrangement (44) and control box (3) electric connection.

6. The energy-saving environment-friendly surface drying furnace as claimed in claim 5, wherein: a dust suction system (43) is installed on the inner side of the supporting plate (45), and a suction inlet of the dust suction system (43) faces the cleaning disc (42).

7. the energy-saving environment-friendly surface drying furnace as claimed in claim 1, is characterized in that: the pipe wall of first blast pipe (10) is provided with a plurality of evenly distributed's arch, and arch and first blast pipe (10) integrated into one piece.

8. The energy-saving environment-friendly surface drying furnace as claimed in claim 1 or 6, wherein: the first exhaust pipe (10) is provided with more than 4 through holes (105), the two corresponding through holes are communicated through a second guide pipe, and the second guide pipe is communicated with the fluid space (104).

9. The energy-saving environment-friendly surface drying furnace as claimed in claim 1, is characterized in that: the liquid outlet (102) is positioned at one side far away from the heating device, and a liquid outlet valve is fixedly connected to the liquid outlet (102).

10. The energy-saving environment-friendly surface drying furnace as claimed in claim 1, is characterized in that: inlet (101) are located the one side that is close to heating device, inlet (101) fixedly connected with inlet conduit, fixedly connected with liquid pump and feed liquor valve on the inlet conduit, the liquid pump is located between feed liquor valve and inlet (101).

Technical Field

The invention relates to the field of surface drying equipment, in particular to an energy-saving and environment-friendly surface drying furnace.

background

The surface drying furnace is mainly used for the drying process of the resin sand core in a casting shop, the resin sand core body has enough strength and less water content after being hardened, only the surface layer needs to be dried after being coated with water-based paint, the temperature rise of a matrix is smaller and better, the process is a surface drying process, the influence factor of the surface drying speed is large, under certain conditions, the hot air temperature and the hot air speed are mainly adopted, and the furnace temperature required by the surface drying process of the resin sand core is 180-250 ℃, so the surface drying speed depends on the hot air speed. The hot air blows the surface of the casting core at a proper speed by the fan at a certain temperature, so that the casting core and the hot air are subjected to sufficient heat exchange and rapid drying, the temperature of the surface drying furnace is stable and uniform, the production batch is large, and the automation degree is high, and the machine body and the sand box reach the minimum temperature rise.

However, the heat and the waste gas which are not fully absorbed by the existing surface drying furnace equipment are exhausted outdoors through an exhaust pipeline, so that the waste of heat is caused, and the waste gas usually contains dust, nitrogen oxides and organic waste gas and is directly exhausted into the atmosphere, so that serious environmental pollution is caused.

Chinese patent CN 105033186a discloses circulating hot air sand core watch dry furnace, which comprises a furnace body, a heater, the heater is located the heater room internal, heater room body bottom is equipped with supply-air outlet and return air inlet, be located the furnace body top, the below of supply-air outlet and return air inlet is equipped with hot air circulating system, hot air circulating system includes circulating fan and the blast pipe that is located the furnace body top, circulating fan's sunction inlet and supply-air outlet intercommunication, the blast pipe bottom is equipped with the blowing nozzle, the both ends symmetry of blast pipe top sets up the exhaust device, the bilateral symmetry of blast pipe is equipped with the return-air duct, the return-air duct is through locating the return air inlet intercommunication heater room body of heater room. The workpiece is dried in a forced hot air circulation mode, and the hot air circulation adopts a structure that air is supplied from the top and returns from two sides, so that the workpiece is uniformly heated and has proper temperature, and the drying speed is improved; be equipped with the waste discharge device in the furnace body and can in time get rid of the moisture in the furnace body, further accelerate drying speed, this technical scheme fails to solve energy waste in the waste gas and directly causes the problem of environmental pollution with waste gas exhaust outdoor, chinese patent CN 201129910Y discloses continuous type psammitolite coating table dry furnace, which comprises a furnace body, heating device, axial along the furnace body in the furnace body sets up roller stick formula material transmission system, roller stick formula material transmission system includes a plurality of roller sticks along furnace body axial parallel arrangement, set up on the roller stick with chain complex sprocket, with sprocket complex chain, drive the drive mechanism of chain motion, this device is rational in infrastructure, and wide in application, the fault rate of table dry furnace device has been reduced, but this technical scheme fails to solve energy waste, heat loss is big, and waste gas causes environmental pollution's problem.

Disclosure of Invention

In order to solve the problems of energy waste and environmental pollution caused by directly discharging waste gas outdoors in the prior art, the invention provides an energy-saving and environment-friendly surface drying furnace which is reasonable in structure, convenient to use, safe and environment-friendly and improves the utilization rate of energy.

An energy-saving environment-friendly type meter dry furnace comprises a meter dry furnace body, wherein the upper end of the meter dry furnace body is fixedly connected with a heating device and a waste gas treatment device, the heating device comprises a heating device body, a heater and a circulating fan, the upper end of the meter dry furnace body is provided with an air supply opening, an air return opening and a waste gas discharge opening, the air return opening is positioned between the air supply opening and the waste gas discharge opening, the waste gas discharge opening is fixedly connected with a first exhaust pipe, the outer side of the first exhaust pipe is fixedly connected with an outer column, the lower end of the outer column is fixedly connected with a liquid inlet, the liquid inlet is provided with a first temperature sensor, the upper end of the outer column is fixedly connected with a liquid outlet, the liquid outlet is provided with a second temperature sensor, a fluid space is reserved between the outer wall of the first exhaust pipe and the inner wall of the, fixedly connected with exhaust fan and fourth temperature sensor in the first exhaust pipe, fourth temperature sensor is located the upside of exhaust fan, the exhaust fan is located the one side that is close to dust collector, the one end of dust collector fixedly connected with second blast pipe, the other end fixedly connected with exhaust gas purification device of second blast pipe, fixedly connected with third blast pipe on the exhaust gas purification device.

Furthermore, one end of a first conduit is fixedly connected to the liquid outlet, the other end of the first conduit is fixedly connected to a liquid storage, a heat insulation plate wraps the outer side of the liquid storage, the thickness of the heat insulation plate is 5-10cm, a third temperature sensor is arranged in the liquid storage, a display control device is fixedly connected to the liquid storage, and a liquid outlet valve is fixedly connected to the lower end of the liquid storage.

Further, the heat insulation board is one of a high-temperature-resistant rock wool heat insulation board, a glass wool heat insulation board, a phenolic composite material heat insulation board and a polystyrene resin heat insulation board.

Furthermore, be connected with material transportation system on the surface dry oven body, material transportation system's lower extreme fixedly connected with cleaning device, surface dry oven body lower extreme fixedly connected with control box, cleaning device is located the one end of keeping away from the control box, cleaning device's lower extreme fixedly connected with waste material accumulator.

Further, cleaning device includes the both sides backup pad, fixedly connected with back shaft between the both sides backup pad, the upper end fixedly connected with clearance dish of back shaft, the lower extreme fixedly connected with drive arrangement of backup pad one side, drive arrangement and control box electric connection.

Furthermore, a dust suction system is installed on the inner side of the supporting plate, and a suction inlet of the dust suction system faces the cleaning disc.

Furthermore, the pipe wall of the first exhaust pipe is provided with a plurality of bulges which are uniformly distributed, and the bulges and the first exhaust pipe are integrally formed.

Furthermore, the first exhaust pipe is provided with more than 4 through holes, the two corresponding through holes are communicated through a second conduit, and the second conduit is communicated with the fluid space.

Furthermore, the liquid outlet is located the one side of keeping away from heating device, fixedly connected with liquid outlet valve on the liquid outlet.

Further, the inlet is located the one side that is close to heating device, inlet fixedly connected with feed liquor pipeline, fixedly connected with liquid pump and feed liquor valve on the feed liquor pipeline, the liquid pump is located between feed liquor valve and the inlet.

compared with the prior art, the invention has the beneficial effects that:

(1) The waste gas treatment device is fixedly connected with the surface drying furnace, a fluid space is reserved between the outer wall of the first exhaust pipe and the inner wall of the outer column, flowing liquid is arranged on the outer side of the first exhaust pipe and can absorb heat of waste gas, waste of energy is avoided, the waste gas generated by the surface drying furnace sequentially passes through the dust collector and the waste gas purification device, the dust collector can remove dust in the waste gas, the waste gas purification device can effectively purify organic matters, nitrogen oxides and the like in the waste gas, the content of pollutants in the waste gas is effectively reduced, and the surface drying furnace is safe and environment-friendly.

(2) The liquid outlet is through first pipe fixedly connected with liquid storage, and the liquid that will have absorbed heat is stored, through showing controlling means, can the direct observation liquid temperature in the liquid storage, and the heated board is installed in the liquid storage outside, and liquid storage has good thermal insulation performance, and the energy is difficult for losing.

(3) The lower end of the material conveying system of the surface drying furnace is fixedly connected with a cleaning device which mainly comprises a cleaning disc, a driving device and a dust collecting system, residues, dust and the like on the surface of the material conveying system can be effectively removed, the environmental pollution is reduced, and the new workpiece can be favorably placed.

(4) The pipe wall of first blast pipe is provided with a plurality of evenly distributed's arch, and arch and first blast pipe integrated into one piece, has the through-hole more than 4 on the first blast pipe, through the second pipe intercommunication between two corresponding through-holes, second pipe and fluid space intercommunication have increased the area of contact of waste gas with first blast pipe, are favorable to the energy in the waste gas to be absorbed better, have improved the rate of recovery of energy, energy saving and emission reduction.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the cleaning apparatus of the present invention;

FIG. 3 is a cross-sectional view of a first exhaust pipe according to another embodiment of the present invention;

Fig. 4 is a schematic structural side view of a first exhaust pipe according to another embodiment of the present invention.

the reference numbers in the figures illustrate:

The device comprises a dry oven body 1, a waste material storage 2, a control box 3, a cleaning device 4, a supporting shaft 41, a cleaning disc 42, a dust suction system 43, a driving device 44, a supporting plate 45, a waste gas discharge port 5, an air supply port 6, a heater 7, a circulating fan 8, an air return port 9, a first exhaust pipe 10, a liquid inlet 101, a liquid outlet 102, an outer column 103, a fluid space 104, a through hole 105, an exhaust fan 11, a dust collector 12, a second exhaust pipe 13, a waste gas purification device 14, a liquid storage 15, a display control device 16, a material transportation system 17 and a third exhaust pipe 18.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.