CN215984006U

CN215984006U - Special preheating device for industrial furnace

Info

Publication number: CN215984006U
Application number: CN202122651948.1U
Authority: CN
Inventors: 满毅
Original assignee: Nanjing Vocational University of Industry Technology NUIT
Current assignee: Dragon Totem Technology Hefei Co ltd; Henan Huanchen Optoelectronic Technology Co ltd
Priority date: 2021-11-01
Filing date: 2021-11-01
Publication date: 2022-03-08
Anticipated expiration: 2031-11-01

Abstract

The utility model discloses a preheating device special for an industrial furnace, which comprises a smoke inlet, wherein a preheating pipe is fixedly arranged on the right side of the smoke inlet, a dirt cleaning device is arranged above the right side of the outside of the preheating pipe, an exhaust port is fixedly arranged on the right side of the preheating pipe, a preheating cavity is arranged in the preheating pipe, a baffle is fixedly arranged on the left side in the preheating cavity, a filter screen is fixedly arranged on the right side in the preheating cavity, an air inlet is formed in the left side of the bottom of the preheating cavity, a drain outlet is formed in the right side of the air inlet, a ball valve is rotatably arranged in the drain outlet, a first servo motor is arranged on the right side of the drain outlet, a rotating rod is fixedly connected to the left side of the first servo motor, and the first servo motor is fixed at the outer bottom of the preheating pipe. This special preheating device of industrial furnace installs filter screen, spiller and drain, cuts through the spiller shovel, cuts accumulational debris on the filter screen to discharge in falling into the drain, keep the cleanness of filter screen, be favorable to improving filtration efficiency next time.

Description

Special preheating device for industrial furnace

Technical Field

The utility model relates to the technical field of furnace kiln preheating devices, in particular to a preheating device special for an industrial furnace kiln.

Background

The preheating device is a device for heating combustion air and gas fuel by using the waste heat of flue gas discharged by the industrial furnace, and after the preheater is arranged on the industrial furnace, the fuel can be saved, and the furnace temperature can be easily increased to accelerate the heating speed, but the preheating device special for the industrial furnace on the current market still has the following problems:

1. the preheating device special for the industrial furnace on the market at present mostly adopts a concurrent heat accumulating type preheating method, and the method has long gas preheating time and low preheating upper limit, and is not beneficial to energy conservation and efficiency improvement.

2. Because the impurity in the flue gas is more, preheating device impurity blocks up the blast pipe easily when the exhaust, and the clearance is more troublesome and be not convenient for debris discharge, influence the use.

Aiming at the problems, the innovative design is carried out on the basis of the original preheating device special for the industrial furnace

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a preheating device special for an industrial furnace, which aims to solve the problems that the preheating device special for the industrial furnace in the market adopts a concurrent heat accumulating type preheating method mostly, the method has long gas preheating time and low upper preheating limit, is not beneficial to energy saving and efficiency improvement, and the preheating device is troublesome in cleaning and inconvenient for discharging impurities and influences use because the impurities in flue gas are more, and the impurities easily block an exhaust pipe when the preheating device discharges the gas.

In order to achieve the purpose, the utility model provides the following technical scheme: special preheating device of industrial furnace, including going into the mouth of cigarette, it has the preheater tube to go into mouth of cigarette right side fixed mounting, and preheats outside of tubes right side top and install the device of decontaminating to preheater tube right side fixed mounting has the gas vent, be equipped with in the preheater tube and preheat intracavity left side fixed mounting and have the baffle to preheat intracavity right side fixed mounting has the filter screen, it has the air inlet to preheat chamber bottom left side open, and the air inlet right side is opened there is the drain to installing of drain internal rotation has the ball valve, the drain right side is equipped with first servo motor, and first servo motor left side fixedly connected with bull stick to the bull stick right side runs through one side drain and ball valve fixed connection, first servo motor fixes in the preheater tube outer bottom, and fixed mounting has the oscillation device on the first servo motor.

Preferably, the device of decontaminating includes shell, second servo motor, transfer line, spiller, gear, rack and spout, shell fixed mounting is in preheating pipe outside right side top, and fixed mounting has second servo motor in the shell to second servo motor left side fixedly connected with transfer line, the transfer line runs through the spiller, and has seted up the spout in the spiller, fixed mounting has the gear on the transfer line, and fixed mounting has the rack in the spout to gear and rack intermeshing.

Preferably, a filter screen is fixedly installed at the inner bottom end of the preheating cavity below the sewage disposal device, a scraper knife is installed in the sewage disposal device, and the scraper knife penetrates through the preheating pipe to contact the surface of the filter screen to form a scraping and sewage disposal mechanism.

Preferably, the baffle is fixedly installed on the left side in the preheating cavity, the air inlet is formed in the left side of the bottom of the preheating cavity, and the airflow direction of the smoke inlet is consistent with that of the air inlet to form the turbulence device.

Preferably, the oscillation device includes carousel, connecting rod, piston and gag lever post, install the carousel in the first servo motor, and the rotatable connecting rod of installing on the carousel, the outer top fixed mounting of first servo motor has the gag lever post, the connecting rod passes the gag lever post and fixes top in the piston, and the noncontacting nestification of piston is outside the gag lever post.

Preferably, the turntable is rotatably provided with a connecting rod, the top end of the connecting rod is fixed at the top in the piston, and the connecting rod is connected and arranged outside the turntable to form an up-and-down moving mechanism.

Compared with the prior art, the utility model has the beneficial effects that: the special preheating device for the industrial furnace

1. The filter screen, the scraper knife and the sewage draining port are installed in the device, and impurities accumulated on the filter screen are scraped down through the scraper knife and discharged to the sewage draining port along the bottom of the preheating cavity in a sliding mode, so that sundries and sewage can be conveniently and quickly cleaned.

2. The gas inlet and the baffle are arranged in the device, the direction of the gas flow is changed due to the blocking of the baffle when the flue gas passes through the baffle, and the gas to be preheated is conveyed inwards by the gas inlet to form turbulent flow, so that the quick preheating of the gas is facilitated, and the working efficiency is improved.

Drawings

FIG. 1 is a schematic view of the overall front cross-sectional structure of the present invention;

FIG. 2 is a schematic view of the connection structure of the housing and the fixing plate according to the present invention;

FIG. 3 is a schematic view of the connection structure of the connecting rod and the connecting ring according to the present invention;

FIG. 4 is an enlarged view of the structure at A in FIG. 1 according to the present invention.

In the figure: 1. a smoke inlet; 2. a preheating pipe; 3. a decontamination device; 301. a housing; 302. a second servo motor; 303. a transmission rod; 304. a scraper knife; 305. a gear; 306. a rack; 307. a chute; 4. an exhaust port; 5. a preheating chamber; 6. a baffle plate; 7. a filter screen; 8. an air inlet; 9. a sewage draining outlet; 10. a ball valve; 11. a first servo motor; 12. an oscillating device; 1201. a turntable; 1202. a connecting rod; 1203. a piston; 1204. a limiting rod; 13. and (4) rotating the rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides the following technical solutions: the preheating device special for the industrial furnace comprises a smoke inlet 1, a preheating pipe 2 is fixedly installed on the right side of the smoke inlet 1, a dirt cleaning device 3 is installed above the outer right side of the preheating pipe 2, an exhaust port 4 is fixedly installed on the right side of the preheating pipe 2, a preheating cavity 5 is arranged in the preheating pipe 2, a baffle 6 is fixedly installed on the left side in the preheating cavity 5, a filter screen 7 is fixedly installed on the right side in the preheating cavity 5, an air inlet 8 is formed in the left side of the bottom of the preheating cavity 5, a drain outlet 9 is formed in the right side of the air inlet 8, a ball valve 10 is rotatably installed in the drain outlet 9, a first servo motor 11 is arranged on the right side of the drain outlet 9, a rotating rod 13 is fixedly connected to the left side of the first servo motor 11, the right side of the rotating rod 13 penetrates through the drain outlet 9 on one side to be fixedly connected with the ball valve 10, the first servo motor 11 is fixed at the outer bottom of the preheating pipe 2, and an oscillating device 12 is fixedly installed on the first servo motor 11, the cleaning device 3 comprises a shell 301, a second servo motor 302, a transmission rod 303, a scraper 304, a gear 305, a rack 306 and a chute 307, wherein the shell 301 is fixedly installed above the outer right side of the preheating pipe 2, the second servo motor 302 is fixedly installed in the shell 301, the transmission rod 303 is fixedly connected to the left side of the second servo motor 302, the transmission rod 303 penetrates through the scraper 304, the chute 307 is formed in the scraper 304, the gear 305 is fixedly installed on the transmission rod 303, the rack 306 is fixedly installed in the chute 307, the gear 305 and the rack 306 are meshed with each other, a filter screen 7 is fixedly installed at the inner bottom end of the preheating cavity 5 below the cleaning device 3, the scraper 304 is installed in the cleaning device 3, and the scraper 304 penetrates through the preheating pipe 2 to contact with the surface of the filter screen 7 to form a scraping and cleaning mechanism, so that sundries and sewage can be cleaned quickly.

Referring to fig. 1 and 4, for rapid heating and pollution discharge, a baffle 6 is fixedly installed at the left side in the preheating chamber 5, and an air inlet 8 is opened at the left side of the bottom of the preheating chamber 5, and the airflow direction of the smoke inlet 1 is consistent with that of the air inlet 8 to form a turbulence device, the oscillation device 12 comprises a turntable 1201, a connecting rod 1202, a piston 1203 and a limiting rod 1204, the turntable 1201 is arranged in the first servo motor 11, a connecting rod 1202 is rotatably arranged on the rotating disc 1201, a limiting rod 1204 is fixedly arranged at the outer upper part of the first servo motor 11, the connecting rod 1202 passes through the limiting rod 1204 and is fixed at the top part in the piston 1203, the piston 1203 is nested outside the limit rod 1204 without contact, the rotating disc 1201 is rotatably provided with a connecting rod 1202, the top end of the connecting rod 1202 is fixed at the top in the piston 1203, and the connecting rod 1202 is installed outside the rotating disc 1201 in a connecting mode to form a piston up-and-down moving mechanism, so that quick preheating of gas is facilitated, and working efficiency is improved.

The working principle is as follows: when the preheating device special for the industrial furnace is used, firstly, the device is installed at a proper position, hot flue gas is discharged into a preheating cavity 5 through a flue gas inlet 1 fixedly connected with the left side of a preheating pipe 2, the flow direction of the flue gas is changed under the action of a baffle 6 fixed on the left side of the preheating cavity 5, gas to be preheated is discharged through a gas inlet 8 below the left side of the preheating pipe 2, the gas is discharged into the preheating cavity 5 and then mixed with the flue gas and is rapidly heated, the mixed gas filters and adsorbs sundries carried in the flue gas through a filter screen 7 in the preheating cavity 5, the gas is discharged from a gas outlet 4 fixedly connected with the right side of the preheating pipe 2 after being preheated in the preheating cavity 5, when the sundries adsorbed on the filter screen 7 are excessive, a second servo motor 302 is started to drive a transmission rod 303 fixedly connected with the transmission rod to rotate, the transmission rod 303 rotates to drive a gear 305 fixedly installed on the transmission rod to rotate, and a rack 306 meshed with the transmission rod 305 is driven to move downwards through the rotation of the gear 305, a scraper knife 304 integrally installed with a rack 306 moves downwards, a gear 305 moves upwards in a sliding chute 307, sundries adsorbed on a filter screen 7 are scraped by moving downwards through the scraper knife 304, the sundries drop at the bottom of a preheating cavity 5 and slide to a sewage discharge outlet 9, a first servo motor 11 is started, a rotating rod 13 fixedly connected to the left side of the first servo motor 11 rotates, the rotating rod 13 rotates to drive a ball valve 10 fixedly connected to the left side to rotate, a rotating disc 1201 installed in the first servo motor 11 rotates, the rotating disc 1201 rotates to drive a connecting rod 1202 installed at the edge to do circular motion, the top end of the connecting rod 1202 moves up and down, a piston 1203 connected to the top end of the connecting rod 1202 moves up and down outside a limiting rod 1204 through the connecting rod 1202, the piston 1203 moves up and down to knock the bottom of the preheating cavity 5, and the sundries which do not slide down to the sewage discharge outlet 9 through vibration, the ball valve 10 is closed after complete discharge, and what is not described in detail in this specification is prior art known to those skilled in the art.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the utility model can be made, and equivalents and modifications of some features of the utility model can be made without departing from the spirit and scope of the utility model.

Claims

1. Special preheating device of industrial furnace, including income mouth (1), its characterized in that: the device is characterized in that a preheating pipe (2) is fixedly mounted on the right side of the smoke inlet (1), a dirt cleaning device (3) is mounted above the outer right side of the preheating pipe (2), an exhaust port (4) is fixedly mounted on the right side of the preheating pipe (2), a preheating cavity (5) is arranged in the preheating pipe (2), a baffle (6) is fixedly mounted on the inner left side of the preheating cavity (5), a filter screen (7) is fixedly mounted on the inner right side of the preheating cavity (5), an air inlet (8) is formed in the left side of the bottom of the preheating cavity (5), a drain outlet (9) is formed in the right side of the air inlet (8), a ball valve (10) is rotatably mounted in the drain outlet (9), a first servo motor (11) is arranged on the right side of the drain outlet (9), a rotating rod (13) is fixedly connected to the left side of the first servo motor (11), and the rotating rod (13) penetrates through the drain outlet (9) on one side and is fixedly connected with the ball valve (10), the first servo motor (11) is fixed at the outer bottom of the preheating pipe (2), and the first servo motor (11) is fixedly provided with the oscillating device (12).

2. The preheating device special for the industrial furnace according to claim 1, wherein: the device of decontaminating (3) is including shell (301), second servo motor (302), transfer line (303), spiller (304), gear (305), rack (306) and spout (307), shell (301) fixed mounting is in preheating pipe (2) outer right side top, and fixed mounting has second servo motor (302) in shell (301) to second servo motor (302) left side fixedly connected with transfer line (303), transfer line (303) run through spiller (304), and seted up in spiller (304) spout (307), fixed mounting has gear (305) on transfer line (303), and spout (307) internal fixed mounting has rack (306) to gear (305) and rack (306) intermeshing.

3. The preheating device special for the industrial furnace according to claim 1, wherein: preheating chamber (5) inner bottom end fixed mounting under scrubbing device (3) has filter screen (7), and installs spiller (304) in scrubbing device (3) to spiller (304) run through preheating tube (2) and contact filter screen (7) surface constitution shovels and cuts scrubbing mechanism.

4. The preheating device special for the industrial furnace according to claim 1, wherein: a baffle (6) is fixedly installed on the left side in the preheating cavity (5), an air inlet (8) is formed in the left side of the bottom of the preheating cavity (5), and the airflow direction of the smoke inlet (1) is consistent with that of the air inlet (8) to form a turbulence device.

5. The preheating device special for the industrial furnace according to claim 1, wherein: the oscillating device (12) comprises a rotary disc (1201), a connecting rod (1202), a piston (1203) and a limiting rod (1204), wherein the rotary disc (1201) is installed in the first servo motor (11), the connecting rod (1202) is rotatably installed on the rotary disc (1201), the limiting rod (1204) is fixedly installed above the outer side of the first servo motor (11), the connecting rod (1202) penetrates through the limiting rod (1204) to be fixed at the top of the inner side of the piston (1203), and the piston (1203) is not nested outside the limiting rod (1204) in a contact mode.

6. The preheating device special for the industrial furnace according to claim 5, wherein: the rotary disc (1201) is rotatably provided with a connecting rod (1202), the top end of the connecting rod (1202) is fixed at the inner top of the piston (1203), and the connecting rod (1202) can be connected and arranged on the outer side of the rotary disc (1201) to form an up-and-down moving mechanism.