CN113324415A - Vertical trumpet interior heat ceramsite firing device and use method thereof - Google Patents
Vertical trumpet interior heat ceramsite firing device and use method thereof Download PDFInfo
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- CN113324415A CN113324415A CN202110514221.0A CN202110514221A CN113324415A CN 113324415 A CN113324415 A CN 113324415A CN 202110514221 A CN202110514221 A CN 202110514221A CN 113324415 A CN113324415 A CN 113324415A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B17/00—Furnaces of a kind not covered by any preceding group
- F27B17/0016—Chamber type furnaces
- F27B17/0041—Chamber type furnaces specially adapted for burning bricks or pottery
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K3/00—Feeding or distributing of lump or pulverulent fuel to combustion apparatus
- F23K3/02—Pneumatic feeding arrangements, i.e. by air blast
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B17/00—Furnaces of a kind not covered by any preceding group
- F27B17/0016—Chamber type furnaces
- F27B17/0041—Chamber type furnaces specially adapted for burning bricks or pottery
- F27B17/0075—Heating devices therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D15/00—Handling or treating discharged material; Supports or receiving chambers therefor
- F27D15/02—Cooling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/0025—Charging or loading melting furnaces with material in the solid state
- F27D3/0031—Charging with tiltable dumpers
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- Mechanical Engineering (AREA)
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Abstract
The invention belongs to the technical field of ceramsite firing, and particularly relates to a vertical trumpet inner heat ceramsite firing device and a using method thereof. The ceramsite firing device comprises a storage and conveying unit, a combustion unit, a ceramsite firing cavity and a ceramsite cooling unit, wherein the storage and conveying unit is used for conveying a trumpet creeper fuel to the combustion unit through a feeding pipe for combustion, and the ceramsite firing cavity is used for exchanging heat with the combustion unit to obtain heat for firing ceramsite. According to the small vertical high-low temperature ceramsite firing device, the high-low temperature firing cavity is arranged to provide reasonable temperature distribution for firing the ceramsite, the trumpet creeper fuel is used as a heat source for firing the ceramsite, the firing temperature of the ceramsite is met, and the ceramsite with excellent performance is obtained.
Description
Technical Field
The invention belongs to the technical field of ceramsite firing, and particularly relates to a vertical trumpet inner heat ceramsite firing device and a using method thereof.
Background
Biomass is considered to be an overlooked energy source and has the characteristics of ubiquity, richness, renewability and the like. The efficient development and utilization of biomass energy play a very positive role in solving the problems of energy and ecological environment. Although the biomass briquette fuel with more applications has the characteristics of low cost, convenient processing and the like, compared with the biomass micron fuel, the biomass briquette fuel has the defects of insufficient combustion, low combustion temperature, easy generation of a large amount of smoke and the like, and the biomass micron fuel has smaller particle size and is more fully contacted with air, so that the combustion speed and the efficiency are greatly improved, and further, higher combustion temperature can be obtained, and the application prospect of the biomass micron fuel is wider. The Xiaobo professor of Huazhong university of science and technology and the team thereof refer to the micron fuel with the particle size of less than 250 microns, which is efficiently produced by biomass, as the trumpet creeper fuel, and the trumpet creeper fuel can realize the combustion at the high temperature of more than 1400 ℃, so that the Chinese trumpet creeper fuel has wide market prospect.
According to statistics, the firing temperature of the conventional ceramsite is 1000-1200 ℃, and most of the main heat sources are fossil fuels. However, the ceramsite firing system using fossil fuel as a heat source has serious environmental pollution and is not beneficial to sustainable development of the environment, and the prior ceramsite firing system adopts large-scale firing equipment such as a rotary kiln, has serious heat energy loss and is not beneficial to reasonable utilization of resources. The ceramsite firing method adopting the vertical ceramsite firing device and taking the biomass as the heat source is beneficial to reasonable utilization of heat energy, particularly conforms to the current clean energy utilization form, and makes a contribution to sustainable development of the environment. However, the small-sized ceramsite firing device using biomass as a heat source is less applied to actual industrial production in China at present.
The main reasons for limiting the application of the small-sized ceramsite firing device taking biomass as a heat source in the actual industrial production are two reasons: first, small-size haydite apparatus for producing often can't provide stable temperature field because of the space is limited, to the firing of haydite or have the phenomenon that the temperature is not enough or partly sintering. Secondly, when the ordinary biomass is used as a heat source, the energy density and the heat value are low, the temperature which can be contributed is only 600-.
Therefore, the prior art still lacks a miniaturized ceramsite production device using biomass as a heat source.
Disclosure of Invention
Aiming at the defects or improvement requirements of the prior art, the invention provides a vertical type trumpet interior heat ceramsite firing device, biomass trumpet fuel is used as a ceramsite firing heat source, a vertical type high-low temperature ceramsite firing cavity is adopted, and a water cooling system is arranged at the periphery of the low-temperature firing cavity, so that the temperature for firing the ceramsite can be provided, and the device particularly meets the requirements of the combustion of clean fuel and the sustainable development of the environment. The detailed technical scheme of the invention is as follows.
In order to achieve the above object, according to one aspect of the present invention, there is provided a vertical trumpet interior heat ceramsite firing device, including a storage and transportation unit, a combustion unit, a ceramsite firing cavity and a ceramsite cooling unit, wherein the storage and transportation unit is configured to transport trumpet fuel to the combustion unit through a feed pipe for combustion, and the ceramsite firing cavity is configured to perform heat exchange with the combustion unit to obtain heat for firing ceramsite;
the combustion unit comprises a combustion furnace and an igniter arranged in the feeding pipe, the ceramsite firing cavity is divided into a first ceramsite firing unit and a second ceramsite firing unit by a first partition plate, the second ceramsite firing unit is connected with the top of the combustion furnace through a second partition plate, the first ceramsite firing unit is provided with a ceramsite sample inlet and a first ceramsite conveying buffer plate positioned below the ceramsite sample inlet, the first partition plate can move to enable a feeding channel to be formed between the first ceramsite firing unit and the second ceramsite firing unit, the second ceramsite conveying buffer plate is arranged below the feeding channel, and the second ceramsite firing unit is provided with a ceramsite outlet;
the ceramsite cooling unit is provided with a ceramsite cooling cavity and a ceramsite cooling inlet pipe, and the ceramsite cooling inlet pipe is communicated with the ceramsite outlet.
Preferably, the ceramic tile firing device further comprises a waste heat utilization unit, the waste heat utilization unit wraps the first ceramic tile firing unit, and circulating water is arranged inside the waste heat utilization unit. The waste heat utilization unit can absorb the heat which is not utilized by the combustion furnace, so that the temperature in the first ceramsite firing unit is kept at 300-350 ℃.
Preferably, the ceramic particle baking device further comprises a control unit, wherein the control unit comprises a controller, and a first temperature sensor, a second temperature sensor and a circulating water temperature sensor which are electrically connected with the controller, the first temperature sensor monitors the temperature of the first ceramic particle baking unit, the second temperature sensor monitors the temperature of the second ceramic particle baking unit, the circulating water temperature sensor monitors the temperature of the waste heat utilization unit, and the controller can control the opening of the ceramic particle outlet and the movement of the first partition plate.
Preferably, the storage and conveying unit is sequentially provided with a hopper, a feeding bin, a dosing mechanism, a material suction cover and a blower along the movement direction of the trumpet creeper fuel, and the blower is communicated with the combustion furnace through a feeding pipe.
Preferably, a stirring mechanism is arranged inside the feeding bin, and an inclined partition plate is arranged between the hopper and the feeding bin.
Preferably, the dosing mechanism is provided with a speed regulator, which is electrically connected to the control unit, the speed regulator being capable of controlling the feeding speed.
Preferably, the igniter is a dry powder igniter, preferably a silicon carbide igniter rod. The silicon carbide ignition rod has the characteristics of dry burning resistance and high heating rate.
According to another aspect of the present invention, there is provided a method for using the apparatus for firing ceramsite, comprising the following steps:
(1) filling the trumpet creeper fuel into a hopper, and starting a stirring mechanism to destroy the accumulation phenomenon formed by the micron fuel by utilizing the rotary motion of the stirring mechanism;
(2) starting an igniter to heat the igniter to a working temperature, and preheating the tail end of a feeding pipe and the area near a feeding hole of a hearth;
(3) after the thermocouple is completely heated, starting the quantitative feeding mechanism to feed, starting the blower, enabling the trumpet creeper fuel to fall into the lower material suction cover, enabling the trumpet creepers to enter the feeding pipe by negative pressure generated by the blower and the dead weight of the trumpet creeper fuel and be fully mixed with air in the process, and enabling the trumpet creeper to pass through the thermocouple igniter and be ignited by the thermocouple igniter;
(4) after the trumpet creeper fuel is ignited, the trumpet creeper fuel enters a combustion furnace to start combustion, so that the temperature of the second ceramsite firing unit is 1000-1200 ℃, and the ceramsite after granulation enters the first ceramsite firing unit and the second ceramsite firing unit sequentially through an injection port to be fired;
(5) and the sintered ceramsite enters a ceramsite cooling unit through a ceramsite outlet to be collected.
Preferably, in the step (4), the temperature in the first ceramsite firing unit is 300-350 ℃ by controlling the flow speed of the circulating water in the waste heat utilization unit.
Preferably, in the step (4), the firing time of the first ceramsite firing unit is 3-5min, and the firing time of the second ceramsite firing unit is 10-15 min.
The invention has the following beneficial effects:
(1) according to the small vertical high-low temperature ceramsite firing device, the high-low temperature firing cavity is arranged to provide reasonable temperature distribution for ceramsite firing, the trumpet creeper fuel is used as a heat source for ceramsite firing, the ceramsite firing temperature is met, the ceramsite with excellent performance is obtained, a feasible route is provided for biomass to replace fossil fuel in the ceramsite firing field, and the device has a wide market application prospect.
(2) According to the invention, the vertical ceramsite firing cavity with high temperature and low temperature is adopted, and the water cooling system is arranged at the periphery of the low-temperature firing cavity, so that the internal temperature of the low-temperature cavity can be controlled, and the problem of uneven temperature distribution of the small-sized ceramsite firing device is solved due to reasonable utilization of heat energy.
(3) The invention aims at the problem that the common biomass can not meet the firing temperature of the ceramsite due to low energy density and heat value of the biomass, the invention uses the trumpetcreeper fuel as the heat source for firing the ceramsite, the combustion temperature of the trumpetcreeper fuel can reach 1450 ℃, and the required firing temperature of the ceramsite is completely met.
Drawings
FIG. 1 is a schematic diagram of the structure of the device of the present invention.
Wherein: the device comprises a storage conveying unit 1, a hopper 101, an inclined partition plate 102, a feeding bin 103, a stirring mechanism 104, a dosing mechanism 105, a suction cover 106, a blower 107, a combustion unit 2, a feeding pipe 201, an igniter 202, a combustion furnace 203, a second ceramsite firing unit 3, a second partition plate 301, a second ceramsite conveying buffer plate 302, a ceramsite outlet 303, a first ceramsite firing unit 4, a ceramsite sample inlet 401, a first ceramsite conveying buffer plate 402, a first partition plate 403, a waste heat utilization unit 5, a ceramsite cooling unit 6, a ceramsite cooling feeding pipe 601, a ceramsite cooling cavity 602 and a control unit 7.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
A vertical trumpet heat ceramsite firing device is shown in figure 1 and comprises a storage and conveying unit 1, a combustion unit 2, a ceramsite firing cavity and a ceramsite cooling unit 6, wherein the storage and conveying unit 1 is used for conveying trumpet fuel to the combustion unit 2 through a feeding pipe 201 for combustion, and the ceramsite firing cavity is used for exchanging heat with the combustion unit 2 to obtain heat for firing ceramsite;
the combustion unit 2 comprises a combustion furnace 203 and an igniter 202 arranged in the feeding pipe 201, the ceramsite firing cavity is divided into a first ceramsite firing unit 4 and a second ceramsite firing unit 3 by a first partition plate 403, the second ceramsite firing unit 3 is connected with the top of the combustion furnace 203 through a second partition plate 301, the first ceramsite firing unit 4 is provided with a ceramsite sample inlet 401 and a first ceramsite conveying buffer plate 402 positioned below the ceramsite sample inlet 401, the first partition plate 403 can move to enable a feeding channel to be formed between the first ceramsite firing unit 4 and the second ceramsite firing unit 3, a second ceramsite conveying buffer plate 302 is arranged below the feeding channel, and the second ceramsite firing unit 3 is provided with a ceramsite outlet 303; the ceramsite cooling unit 6 is provided with a ceramsite cooling cavity 602 and a ceramsite cooling inlet pipe 601, wherein the ceramsite cooling inlet pipe 601 is communicated with the ceramsite outlet 303.
As a preferred embodiment, the ceramic tile firing device further comprises a waste heat utilization unit 5, the waste heat utilization unit 5 wraps the first ceramic tile firing unit 4, and circulating water is arranged inside the waste heat utilization unit 5. The waste heat utilization unit 5 can absorb the heat not utilized by the combustion furnace, so that the temperature in the first ceramsite firing unit 4 is always kept at 300-350 ℃.
As a preferred embodiment, the ceramic particle baking device further comprises a control unit 7, wherein the control unit 7 comprises a controller, and a first temperature sensor, a second temperature sensor and a circulating water temperature sensor which are electrically connected with the controller, the first temperature sensor monitors the temperature of the first ceramic particle baking unit 4, the second temperature sensor monitors the temperature of the second ceramic particle baking unit 3, the circulating water temperature sensor monitors the temperature of the waste heat utilization unit 5, and the controller can control the opening of the ceramic particle outlet 303 and the movement of the first partition plate 403.
In a preferred embodiment, the storage and transportation unit 1 is provided with a hopper 101, a feeding bin 103, a dosing mechanism 105, a suction hood 106 and a blower 107 in sequence along the movement direction of the trumpet-shaped fuel, wherein the blower 107 is communicated with a combustion furnace 203 through a feeding pipe 201.
As a preferred embodiment, an agitation mechanism 104 is disposed inside the feeding bin 103, and an inclined partition 102 is disposed between the hopper 101 and the feeding bin 103, and preferably, the dosing mechanism 105 is provided with a speed regulator electrically connected to the control unit, and the speed regulator can control a feeding speed.
In a preferred embodiment, the igniter 202 is a dry powder igniter, preferably a silicon carbide igniter rod. The silicon carbide ignition rod has the characteristics of dry burning resistance and high heating rate.
When the device is used for firing ceramsite, the method comprises the following steps:
(1) filling the trumpet creeper fuel into a hopper, and starting a stirring mechanism to destroy the accumulation phenomenon formed by the micron fuel by utilizing the rotary motion of the stirring mechanism;
(2) starting an igniter to heat the igniter to a working temperature, and preheating the tail end of a feeding pipe and the area near a feeding hole of a hearth;
(3) after the thermocouple is completely heated, starting the quantitative feeding mechanism to feed, starting the blower, enabling the trumpet creeper fuel to fall into the lower material suction cover, enabling the trumpet creepers to enter the feeding pipe by negative pressure generated by the blower and the dead weight of the trumpet creeper fuel and be fully mixed with air in the process, and enabling the trumpet creeper to pass through the thermocouple igniter and be ignited by the thermocouple igniter;
(4) after the trumpet creeper fuel is ignited, the trumpet creeper fuel enters a combustion furnace to start combustion, so that the temperature of the second ceramsite firing unit is 1000-1200 ℃, and the ceramsite after granulation enters the first ceramsite firing unit and the second ceramsite firing unit sequentially through an injection port to be fired;
(5) and the sintered ceramsite enters the ceramsite cooling unit 6 through a ceramsite outlet to be collected.
As a preferred embodiment, in the step (4), the temperature in the first ceramsite firing unit 4 is controlled to be 300-.
As a preferable example, in the step (4), the firing time of the first ceramsite firing unit is 3-5min, and the firing time of the second ceramsite firing unit is 10-15 min.
Specifically, firstly, biomass trumpet creeper fuel is stored in the storage and conveying unit 1, the trumpet creeper fuel enters from a hopper 101 and falls into a feeding bin 103 through an inclined partition plate 102, a stirring mechanism 104, namely a stirring blade, is arranged in the feeding bin 103, and mainly aims to enable the biomass trumpet creeper fuel to be in a fluffy state, the trumpet creeper fuel can uniformly enter a quantitative feeding mechanism 105, namely a spiral auger from a bottom discharge hole, the trumpet creeper fuel entering the spiral auger uniformly enters a material suction cover 106, the trumpet creeper fuel is carried by wind power through a blower 107 and enters the combustion unit 2 through a feeding pipe 201, an igniter 9 is arranged in the middle of the feeding pipe 201, the ignited trumpet creeper fuel is input into a combustion furnace 203 for combustion, and the high temperature of 1000-.
Then, the granulated ceramsite is directly fed into the first ceramsite firing unit 4 through the ceramsite sample inlet 401 along the first ceramsite conveying buffer plate 402, the first ceramsite firing unit 4 is a low-temperature ceramsite firing unit, and the temperature of the ceramsite firing unit is kept at 350 ℃ through the control of the waste heat utilization unit 5. After the low-temperature firing is carried out for a period of time, the right end of the first partition plate 403 is opened through the control unit 7, so that the first partition plate 403 is inclined, the low-temperature fired ceramsite enters the second ceramsite firing unit 3 along the second ceramsite conveying buffer plate 302, the second ceramsite firing unit 3 is a high-temperature ceramsite firing unit and provides a temperature range of 1000-.
Wherein, the residual heat utilization unit 5 is filled with circulating cooling water and is connected with the control unit 7 to keep the temperature of the first ceramsite firing unit 4 at 300-350 ℃.
Application examples
Application example 1
The temperature of the second ceramsite firing unit is controlled to be 1000 ℃, the firing time of the second ceramsite firing unit is 10min, the temperature of the first ceramsite firing unit is controlled to be 300 ℃, the firing time of the first ceramsite firing unit is 3min, and the performances of the obtained ceramsite are shown in table 1.
Application example 2
The temperature of the second ceramsite firing unit is controlled to be 1200 ℃, the firing time of the second ceramsite firing unit is 10min, the temperature of the first ceramsite firing unit is controlled to be 300 ℃, the firing time of the first ceramsite firing unit is 3min, and the performances of the obtained ceramsite are shown in table 1.
TABLE 1 sintered ceramsite Properties Table
In summary, the small vertical high-low temperature ceramsite firing device developed by the invention has the advantages that the arrangement of the high-low temperature firing cavity provides reasonable temperature distribution for the ceramsite firing, the trumpet creeper fuel is used as a heat source for the ceramsite firing, the ceramsite firing temperature is met, and the ceramsite with excellent performance is obtained.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A vertical trumpet heat ceramsite firing device is characterized by comprising a storage and conveying unit (1), a combustion unit (2), a ceramsite firing cavity and a ceramsite cooling unit (6), wherein the storage and conveying unit (1) is used for conveying trumpet fuel to the combustion unit (2) through a feed pipe (201) for combustion, and the ceramsite firing cavity is used for exchanging heat with the combustion unit (2) to obtain heat for firing ceramsite;
the combustion unit (2) comprises a combustion furnace (203) and an igniter (202) arranged in the feeding pipe (201), the ceramsite firing cavity is divided into a first ceramsite firing unit (4) and a second ceramsite firing unit (3) by a first partition plate (403), the second ceramsite firing unit (3) is connected with the top of the combustion furnace (203) through a second clapboard (301), the first ceramsite firing unit (4) is provided with a ceramsite sample inlet (401) and a first ceramsite conveying buffer plate (402) positioned below the ceramsite sample inlet (401), the first partition (403) is movable so as to form a feed channel between the first ceramsite firing unit (4) and the second ceramsite firing unit (3), a second ceramsite conveying buffer plate (302) is arranged below the feeding channel, and the second ceramsite firing unit (3) is provided with a ceramsite outlet (303);
the ceramsite cooling unit (6) is provided with a ceramsite cooling cavity (602) and a ceramsite cooling inlet pipe (601), and the ceramsite cooling inlet pipe (601) is communicated with the ceramsite outlet (303).
2. A ceramsite firing device according to claim 1, further comprising a waste heat utilization unit (5), wherein the waste heat utilization unit (5) wraps the first ceramsite firing unit (4), and circulating water is arranged inside the waste heat utilization unit (5).
3. A ceramsite firing device according to claim 2, further comprising a control unit (7), wherein the control unit (7) comprises a controller, and a first temperature sensor, a second temperature sensor and a circulating water temperature sensor which are electrically connected with the controller, the first temperature sensor monitors the temperature of the first ceramsite firing unit (4), the second temperature sensor monitors the temperature of the second ceramsite firing unit (3), the circulating water temperature sensor monitors the temperature of the waste heat utilization unit (5), and the controller can control the opening of the ceramsite outlet (303) and the movement of the first partition plate (403).
4. A ceramsite firing device according to claim 3, wherein the storage and transportation unit (1) is sequentially provided with a hopper (101), a feeding bin (103), a dosing mechanism (105), a suction cover (106) and a blower (107) along the movement direction of the trumpet-shaped fuel, and the blower (107) is communicated with the combustion furnace (203) through a feeding pipe (201).
5. A ceramsite sintering device according to claim 4, wherein the feeding bin (103) is internally provided with a stirring mechanism (104), and an inclined partition plate (102) is arranged between the hopper (101) and the feeding bin (103).
6. A ceramsite firing device according to claim 5, wherein the dosing mechanism (105) is provided with a speed regulator, which is electrically connected with the control unit, and which is capable of controlling the feeding speed.
7. A ceramsite firing device according to claim 1, characterized in that the igniter (202) is a dry powder igniter, preferably a silicon carbide igniter rod.
8. The method for using a device for firing ceramic particles as claimed in any one of claims 1 to 7, comprising the steps of:
(1) filling the trumpet creeper fuel into a hopper, and starting a stirring mechanism to destroy the accumulation phenomenon formed by the micron fuel by utilizing the rotary motion of the stirring mechanism;
(2) starting an igniter to heat the igniter to a working temperature, and preheating the tail end of a feeding pipe and the area near a feeding hole of a hearth;
(3) after the thermocouple is completely heated, starting the quantitative feeding mechanism to feed, starting the blower, enabling the trumpet creeper fuel to fall into the lower material suction cover, enabling the trumpet creepers to enter the feeding pipe by negative pressure generated by the blower and the dead weight of the trumpet creeper fuel and be fully mixed with air in the process, and enabling the trumpet creeper to pass through the thermocouple igniter and be ignited by the thermocouple igniter;
(4) after the trumpet creeper fuel is ignited, the trumpet creeper fuel enters a combustion furnace to start combustion, so that the temperature of the second ceramsite firing unit is 1000-1200 ℃, and the ceramsite after granulation enters the first ceramsite firing unit and the second ceramsite firing unit sequentially through an injection port to be fired;
(5) and the sintered ceramsite enters a ceramsite cooling unit through a ceramsite outlet to be collected.
9. The method for using the ceramsite firing device as recited in claim 8, wherein in the step (4), the temperature in the first ceramsite firing unit is controlled to be 300-350 ℃ by controlling the flow rate of the circulating water inside the waste heat utilization unit.
10. The method for using a ceramsite baking device according to claim 8, wherein in the step (4), the baking time of the first ceramsite baking unit is 3-5min, and the baking time of the second ceramsite baking unit is 10-15 min.
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Application publication date: 20210831 |