CN209910385U

CN209910385U - Pearl calcining furnace based on heat recycling system

Info

Publication number: CN209910385U
Application number: CN201920654672.2U
Authority: CN
Inventors: 蒋汉文; 刘陈刚
Original assignee: HANGZHOU FORWARD FINE CHEMICALS Co Ltd
Current assignee: HANGZHOU FORWARD FINE CHEMICALS Co Ltd
Priority date: 2019-05-09
Filing date: 2019-05-09
Publication date: 2020-01-07
Anticipated expiration: 2029-05-09

Abstract

The utility model relates to a burning furnace is forged to pearly-lustre based on heat recycling system belongs to and forges burning furnace technical field, calcine the mechanism including the conveying, the conveying is calcined the mechanism upper end and is equipped with the flue house steward, and flue house steward and conveying are calcined and are equipped with a plurality of flues that are linked together with the flue house steward between the mechanism and are divided the pipe, and the flue is divided the pipe and is calcined the mechanism looks pipeline with the conveying and communicate. The conveying type calcining mechanism comprises a calcining rack, a low-temperature calcining area is arranged at the front end of the calcining rack, a high-temperature calcining area is arranged at the rear end of the calcining rack, the high-temperature calcining area and the low-temperature calcining area are separated by a plate type partition, and a pearl conveyor is arranged at the upper end of the calcining rack. Has the characteristics of compact structure, energy conservation, emission reduction, tail gas purification and long service life. Improves the calcining quality and reduces the energy consumption.

Description

Pearl calcining furnace based on heat recycling system

Technical Field

The utility model relates to a forge burning furnace technical field, concretely relates to forge burning furnace with pearly-lustre based on heat recycling system.

Background

A calcining furnace is a thermal device for carrying out heat treatment on carbon raw materials at high temperature so as to improve the performance of the raw materials. The equipment is used for ironmaking, recovering rare metals, producing catalysts, improving the environment and producing special chemicals. After the raw material is calcined, most of moisture and volatile components in the raw material are removed, the volume is reduced along with the raw material, and the density, the strength and the conductivity are correspondingly improved. The purpose of calcination is to improve the properties of the raw material and to stabilize the volume of the raw material so that the formed product does not crack during the subsequent calcination process. The traditional calcining furnace has the defects of high energy consumption, poor tail gas purification capability and the like.

The improvement of the properties of the raw material is conditioned by the temperature during the heat treatment, and the calcination temperature is greatly related to the calcination quality and is determined according to the type of the raw material, the application of the product and the structural form of the furnace. The calcination temperature is determined in different countries, and generally, the calcination temperature controlled in the united states and the former soviet union is higher, while that controlled in france and japan is lower.

The kiln types used for calcining the carbon materials at home and abroad mainly comprise a rotary kiln, a pot type calciner, a rotary bed calciner, an electric calciner, a coke oven and the like. These types of furnaces have significant differences in heat sources, heat transfer means, and calcination atmosphere due to differences in furnace body structures and process conditions. The pot calciner and the coke oven belong to the indirect heating type. The heat of the flue gas in the flue is transferred to the calcined material through the refractory bricks serving as the walls of the flue. Rotary kiln and rotary bed calcination are another type of direct heating. The high-temperature flue gas is directly contacted with the calcined material, and the burning loss of the carbon is larger than that of the former heating type which basically isolates air. The electric calcining furnace is used for converting electric energy into heat energy by taking a calcined material as a resistance heating body so as to realize self-heating of the calcined material.

Disclosure of Invention

The utility model discloses mainly solve and have the energy waste, exhaust emissions pollutes and occupation space is big not enough among the prior art, provide a burning furnace is forged to pearly-lustre based on heat recycling system, its compact structure, energy saving and emission reduction, tail gas purification and long service life. Improves the calcining quality and reduces the energy consumption.

The above technical problem of the present invention can be solved by the following technical solutions:

the pearly luster calcining furnace based on the heat recycling system comprises a conveying type calcining mechanism, wherein a main flue pipe is arranged at the upper end of the conveying type calcining mechanism, a plurality of branch flue pipes communicated with the main flue pipe are arranged between the main flue pipe and the conveying type calcining mechanism, and the branch flue pipes are communicated with the conveying type calcining mechanism through pipelines. The conveying type calcining mechanism comprises a calcining rack, a low-temperature calcining area is arranged at the front end of the calcining rack, a high-temperature calcining area is arranged at the rear end of the calcining rack, the high-temperature calcining area and the low-temperature calcining area are separated by a plate type partition, a pearl conveyor is arranged at the upper end of the calcining rack, a plurality of heat-conducting straight pipes which are fixedly connected with the calcining rack in a nested flange mode and distributed at equal intervals are arranged in the low-temperature calcining area and the high-temperature calcining area, U-shaped heat-insulating pipes which are communicated with the heat-conducting straight pipes in a sleeved mode are arranged between every two adjacent heat-conducting straight pipes, the U-shaped heat-insulating pipes are connected with flanges of the outer wall of the calcining rack in a flanged mode, and calcining tanks which are connected with the heat-conducting straight pipes in a bearing mode are arranged between the heat-conducting straight pipes and the calcining rack in the.

The heat-conducting straight pipe and the U-shaped heat-insulating pipe are in a continuous S shape, waste gas circulates through the oil pipe, and waste oil used in industrial production flows in the pipe. The pearly luster on the pearly luster conveyor is heated and calcined in a high-temperature calcining area through the natural gas jet combustion in the calcining tank. At the moment, the waste oil transports heat from the high-temperature calcining area to the low-temperature calcining area through the heat conduction straight pipe and the U-shaped heat preservation pipe, and the temperature formed below the pearly-lustre conveyor sequentially improves the preheating effect from left to right. The calcining rack is a steel structure equipment supporting frame, and the pearly luster conveyor is a bearing type steel belt material conveyor and is used for conveying, heating and calcining pearly luster raw materials.

Preferably, the upper end of the main flue pipe is provided with a smoke exhaust pipe communicated with the main flue pipe, a water mist smoke passing device supporting frame is arranged between the smoke exhaust pipe and the conveying type calcining mechanism, and a water mist smoke passing device in penetrating type nested connection with the smoke exhaust pipe is arranged between the water mist smoke passing device supporting frame and the smoke exhaust pipe.

The water fog smoke passing device is also called as wet dust remover, which is a device that makes dust-containing gas closely contact with liquid, generally water, and utilizes the inertia collision of water drops and particles or the full mixing action and other actions of water and dust to catch particles or make particles enlarge or remain in a fixed container to achieve the effect of separating water from dust. Because the waste flue gas contains particulate matters and dust, the environmental pollution is serious by direct removal.

Preferably, the tail end of the smoke exhaust pipe is provided with a chimney which is vertically communicated with the smoke exhaust pipe, and an exhaust fan which is hermetically connected with the smoke exhaust pipe through a flange type bolt is arranged below the chimney. The exhaust fan achieves the ventilation effect by exhausting air indoors or outdoors. The flowing of air around human body can promote the evaporation of body fluid, and the exhaust fan has the function of natural cooling, thus avoiding the uncomfortable reaction caused by poor ventilation such as sultry, peculiar smell, dust, oil smoke and the like.

The working principle of the exhaust fan is that input electric power penetrates through a motor to drive a fan impeller to rotate so as to achieve the effect of air suction or air exhaust on gas, and the fan is composed of elements such as an air inlet impeller shell motor and the like. The motor is used for converting electric power into mechanical power to drive the impeller to rotate, the air inlet is used for guiding gas to smoothly enter the impeller, and the impeller is used for transferring kinetic energy during rotation to the gas.

Preferably, the upper end of the high-temperature calcining area is provided with a water vapor collecting flared pipe communicated with a flue header pipe.

Preferably, the front end of the pearl conveyor is provided with a feeding frame which is fixedly connected with the low-temperature calcining area through bolts. The feeding frame is convenient for material preparation in advance, so that the efficiency is improved. Prevent the untimely influence of the feed from influencing the energy source without end waste.

The utility model discloses can reach following effect:

the utility model provides a burning furnace is forged to pearly-lustre based on heat recycling system compares with prior art, has compact structure, energy saving and emission reduction, tail gas purification and long service life's characteristics. Improves the calcining quality and reduces the energy consumption.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic side view of the structure of the present invention.

Fig. 3 is a schematic partial structure diagram of the conveying type calcining mechanism of the present invention.

In the figure: the device comprises an exhaust fan 1, a chimney 2, a water mist smoke passing device 3, a smoke exhaust pipe 4, a flue header pipe 5, a water mist smoke passing device support frame 6, a flue branch pipe 7, a conveying type calcining mechanism 8, a feeding frame 9, a low-temperature calcining area 10, a pearly-luster conveyor 11, a calcining rack 12, a water vapor collecting horn pipe 13, a high-temperature calcining area 14, a calcining tank 15, a U-shaped heat preservation pipe 16 and a heat conduction straight pipe 17.

Detailed Description

The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.

Example (b): as shown in fig. 1, 2 and 3, the pearlescent calcining furnace based on the heat recycling system comprises a conveying type calcining mechanism 8, a flue header pipe 5 is arranged at the upper end of the conveying type calcining mechanism 8, a smoke exhaust pipe 4 communicated with a pipeline of the flue header pipe 5 is arranged at the upper end of the flue header pipe 5, a chimney 2 vertically communicated with the smoke exhaust pipe 4 is arranged at the tail end of the smoke exhaust pipe 4, and an exhaust fan 1 hermetically connected with the smoke exhaust pipe 4 through a flange type bolt is arranged below the chimney 2. A water mist smoke passing device supporting frame 6 is arranged between the smoke exhaust pipe 4 and the conveying type calcining mechanism 8, and a water mist smoke passing device 3 which is in penetrating type nested connection with the smoke exhaust pipe 4 is arranged between the water mist smoke passing device supporting frame 6 and the smoke exhaust pipe 4. 2 groups of flue branch pipes 7 communicated with the main flue pipe 5 are arranged between the main flue pipe 5 and the conveying type calcining mechanism 8, and the flue branch pipes 7 are communicated with pipelines of the conveying type calcining mechanism 8. The conveying type calcining mechanism 8 comprises a calcining rack 12, a low-temperature calcining area 10 is arranged at the front end of the calcining rack 12, a high-temperature calcining area 14 is arranged at the rear end of the calcining rack 12, and a water vapor collecting horn pipe 13 communicated with a flue main pipe 5 is arranged at the upper end of the high-temperature calcining area 14. The high-temperature calcining area 14 is separated from the low-temperature calcining area 10 by a plate type partition, the upper end of the calcining rack 12 is provided with a pearl conveyor 11, and the front end of the pearl conveyor 11 is provided with a feeding rack 9 which is fixedly connected with the low-temperature calcining area 10 by bolts. 15 heat-conducting straight pipes 17 which are fixedly connected with the calcining frame 12 in an embedded mode through flanges and distributed at equal intervals are arranged in the low-temperature calcining area 10 and the high-temperature calcining area 14, U-shaped heat-insulating pipes 16 which are communicated with the heat-conducting straight pipes 17 in a sleeved mode through sealed pipelines are arranged between every two adjacent heat-conducting straight pipes 17, the U-shaped heat-insulating pipes 16 are connected with the outer wall of the calcining frame 12 through flange type bolts, and calcining tanks 15 which are connected with the heat-conducting straight pipes 17 in an embedded mode in a bearing mode are arranged between the heat-conducting straight pipes 17 and the calcining frame 12 in the high-temperature calcining area 14.

In conclusion, the pearlescent calcining furnace based on the heat recycling system has the characteristics of compact structure, energy conservation and emission reduction, tail gas purification and long service life. Improves the calcining quality and reduces the energy consumption.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without deviating from the basic characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

In conclusion, the above description is only the specific embodiment of the present invention, but the structural features of the present invention are not limited thereto, and any person skilled in the art can make changes or modifications within the scope of the present invention.

Claims

1. A pearl calcining furnace based on a heat recycling system is characterized in that: the device comprises a conveying type calcining mechanism (8), wherein a main flue pipe (5) is arranged at the upper end of the conveying type calcining mechanism (8), a plurality of branch flue pipes (7) communicated with the main flue pipe (5) are arranged between the main flue pipe (5) and the conveying type calcining mechanism (8), and the branch flue pipes (7) are communicated with a pipeline of the conveying type calcining mechanism (8); the transmission type calcining mechanism (8) comprises a calcining rack (12), a low-temperature calcining area (10) is arranged at the front end of the calcining rack (12), a high-temperature calcining area (14) is arranged at the rear end of the calcining rack (12), the high-temperature calcining area (14) is separated from the low-temperature calcining area (10) in a plate type, a pearly-luster conveyor (11) is arranged at the upper end of the calcining rack (12), a plurality of heat-conducting straight pipes (17) which are fixedly connected with the calcining rack (12) in an embedded type flange mode and distributed at equal intervals are arranged in the low-temperature calcining area (10) and the high-temperature calcining area (14), U-shaped heat-insulating pipes (16) which are communicated with the heat-conducting straight pipes (17) in a sealed type in a sleeved mode are arranged between the two adjacent heat-conducting straight pipes (17), the U-shaped heat-insulating pipes (16) are connected with the outer wall of the calcining rack (12) in a flange type bolt mode, and the heat-conducting straight pipes (17) are arranged between the calcining rack The heat straight pipe (17) is nested and connected with the calcining tank (15) in a bearing mode.

2. The pearlescent calciner based on a heat recycling system according to claim 1, characterized in that: flue house steward (5) upper end be equipped with flue house steward (5) looks pipeline intercommunication discharge fume tub (4), discharge fume tub (4) and conveying type calcine and be equipped with water smoke between mechanism (8) and cross cigarette ware support frame (6), water smoke cross cigarette ware (3) with discharge fume tub (4) between be equipped with and discharge fume tub (4) looks through type nested connection's water smoke.

3. The pearlescent calciner based on a heat recycling system according to claim 2, characterized in that: the tail end of the smoke exhaust pipe (4) is provided with a chimney (2) vertically communicated with the smoke exhaust pipe (4), and an exhaust fan (1) hermetically connected with the smoke exhaust pipe (4) through a flange type bolt is arranged below the chimney (2).

4. The pearlescent calciner based on a heat recycling system according to claim 1, characterized in that: and a water vapor collecting flared pipe (13) communicated with a flue header pipe (5) is arranged at the upper end of the high-temperature calcining area (14).

5. The pearlescent calciner based on a heat recycling system according to claim 1, characterized in that: the front end of the pearl conveyor (11) is provided with a feeding frame (9) which is fixedly connected with the low-temperature calcining area (10) through bolts.