CN217209394U - Lithium fine slag fluidized combustion furnace - Google Patents
Lithium fine slag fluidized combustion furnace Download PDFInfo
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- CN217209394U CN217209394U CN202122790616.1U CN202122790616U CN217209394U CN 217209394 U CN217209394 U CN 217209394U CN 202122790616 U CN202122790616 U CN 202122790616U CN 217209394 U CN217209394 U CN 217209394U
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The disclosure belongs to the technical field of nuclear power, and particularly relates to a lithium fine slag fluidized combustion furnace. The lithium fine slag fluidized combustion furnace comprises: the device comprises a feeding pipe, a combustion chamber, an ignition device, an air pipe, a water jacket and an air outlet pipeline; the combustion chamber is a hollow cavity, the feed pipe penetrates through the upper end of the combustion chamber and extends into the combustion chamber, the other end of the feed pipe is connected with the feeding device, and the upper end of the combustion chamber is provided with an air outlet pipeline; the water jacket is sleeved on the outer side wall of the combustion chamber, a water inlet is formed in the outer side of the upper end of the water jacket, and a water outlet is formed in the outer side of the lower end of the water jacket; the ignition chamber is a hollow chamber, the lower end of the combustion chamber is connected with the upper end of the ignition chamber, and the interior of the combustion chamber is communicated with the interior of the ignition chamber; the ignition needle device is arranged in the ignition chamber, and the lower end of the ignition chamber is provided with an opening; the air outlet of the air pipe penetrates through the side wall of the lower end of the ignition chamber and is positioned in the ignition chamber, and the air pipe is used for generating air flow spirally rising from bottom to top in the ignition chamber. Therefore, the lithium refined slag can be continuously and fully combusted, and the defect that the lithium refined slag is easy to harden during combustion is overcome.
Description
Technical Field
The utility model belongs to the technical field of the nuclear power, concretely relates to lithium beneficiated burden slag fluidization fires burning furnace.
Background
The lithium refined slag is residue generated in the process of producing the metal lithium by electrolyzing lithium chloride and potassium chloride solution, and has more components, including a large amount of elemental metal lithium and a small amount of potassium, sodium, oxides, carbides and the like thereof. According to production statistics, 1 ton of metal lithium and lithium fine slag produced by products are about 0.18 ton per production, and if the lithium fine slag is placed in air, the lithium fine slag can react with oxygen, nitrogen and the like in the air and release heat, even spontaneously combust, so that not only can the waste of metal lithium be caused, but also great potential safety hazards can be caused to nearby equipment, facilities and personnel.
The prior treatment method of the lithium refined slag is to put the lithium refined slag into paraffin oil for storage, then transport the lithium refined slag to a large hydrolysis tank, and directly put the lithium refined slag into water for hydrolysis digestion, but elemental metal in the slag reacts with water to generate a large amount of hydrogen, and the hydrogen releases a large amount of heat, has the function of reducing the paraffin oil to generate unpleasant organic matters, and can explode when encountering a fire source when the content of the hydrogen in the air is 4.1-74.2 percent, so that the large amount of heat above the hydrolysis tank and the generated hydrogen are very easy to explode. These represent a great risk for the handling of the lithium concentrate and the rate of hydrolytic digestion is slow, even after some modification, with a maximum digestion rate of 50kg/h (kilograms per hour).
In order to solve the potential safety hazard in the process of hydrolyzing and digesting the lithium refined slag, avoid the occurrence of accidents and improve the hydrolysis and digestion speed, the prior digestive and hydrolysis process is provided. The new process does not generate hydrogen during the digestion and hydrolysis, and the combustion treatment amount is easy to expand, so that the efficient and safe digestion and hydrolysis of the lithium refined slag can be realized. Thus, how to realize the complete combustion of the lithium fine slag becomes a key technical problem of the process.
SUMMERY OF THE UTILITY MODEL
In order to overcome the problems in the related art, a lithium fine slag fluidized combustion furnace is provided.
According to an aspect of the embodiments of the present disclosure, there is provided a lithium fine slag fluidized combustion furnace including: the ignition device comprises a feeding pipe, a combustion chamber, an ignition device, an air pipe, a water jacket and an air outlet pipeline;
the combustion chamber is a hollow cavity, one end of the feeding pipe penetrates through the upper end of the combustion chamber and extends into the combustion chamber, the other end of the feeding pipe is connected with a lithium refined slag conveying pipeline, the feeding pipe is used for guiding lithium refined slag to be processed into the combustion chamber, an air outlet pipeline is arranged at the upper end of the combustion chamber, and fluid generated in the combustion chamber can be led out when the air outlet pipeline is opened;
the water jacket is sleeved on the outer side wall of the combustion chamber, a water inlet is formed in the outer side of the upper end of the water jacket, and a water outlet is formed in the outer side of the lower end of the water jacket;
the ignition chamber is a hollow chamber, the lower end of the combustion chamber is connected with the upper end of the ignition chamber, and the interior of the combustion chamber is communicated with the interior of the ignition chamber;
the ignition needle device is arranged in the ignition chamber and is used for generating flame in the ignition chamber;
the lower end of the ignition chamber is provided with an opening for leading out residues generated after the combustion of the lithium fine slag;
and the air outlet of the air pipe penetrates through the side wall of the lower end of the ignition chamber and is positioned in the ignition chamber, and is used for generating air flow blown from bottom to top in the ignition chamber.
In one possible implementation, the lithium concentrate fluidized-bed combustion furnace further comprises a venturi;
the Venturi tube is arranged in the radial direction, and one end of the Venturi tube is communicated with the lower end opening of the ignition chamber.
In a possible implementation manner, the combustion chamber is divided into an upper part and a lower part in the order from top to bottom, and the inner diameter of the upper part of the combustion chamber is larger than that of the lower part of the combustion chamber.
In a possible implementation manner, the upper portion and the lower portion are both cylinders, and a connection portion between the upper portion and the lower portion is an inclined surface of an inverted circular truncated cone.
In one possible implementation, the lower combustion chamber length to diameter ratio is greater than 2 and the lower combustion chamber length is greater than the upper combustion chamber length.
In one possible implementation, the side wall of the ignition chamber is provided with a transparent window.
In one possible implementation, the lithium concentrate fluidized-bed combustion furnace further includes: a controller and a temperature gauge;
the controller is respectively connected with the temperature instrument and the feeding device, and controls the feeding device to start to convey the lithium refined slag to the combustion chamber under the condition that the temperature value obtained from the temperature instrument meets the preset temperature condition;
and the controller controls the feeding device not to act under the condition that the temperature value acquired from the temperature instrument does not accord with the preset temperature condition.
In one possible implementation, the lithium fine slag fluidized combustion furnace further includes: the electromagnetic valve, the pressure gauge and the relay control device;
the electromagnetic valve is connected in the air outlet pipeline and used for controlling the opening and closing of the air outlet pipeline;
the relay control device is connected with the electromagnetic valve, and when the relay control device is electrified, the electromagnetic valve can be opened, so that the air outlet pipeline is opened;
and under the condition that the pressure in the combustion chamber reaches the setting value of the pressure instrument electric contact, the pressure instrument electric contact enables the relay control device to be electrified to open the electromagnetic valve, so that the combustion chamber continuously exhausts until the pressure in the combustion chamber is smaller than the setting value of the pressure instrument electric contact.
The beneficial effect of this disclosure lies in: the utility model discloses a lithium fine slag fluidized combustion furnace utilizes the ascending hot gas flow that flame produced when ignition burns to meet with the lithium fine slag material of whereabouts, make the material burning oxidation, simultaneously, the air blows into the combustion chamber and produces the spiral ascending air current with certain air input through the inlet duct of ignition chamber, both have combustion-supporting function, the spiral ascending air current that produces can slow down the speed that the material falls again, the dwell time of extension material in the combustion chamber, can realize the continuous abundant burning of lithium slag material, the shortcoming that easily hardens when having overcome the combustion of reason fine slag, finally can make the safe digestion hydrolysis rate of the fine slag after handling increase by a wide margin. The gas that the burning produced gets into follow-up purification treatment equipment, be favorable to improving the improvement of the treatment effeciency of reason seminal vesicle, furthermore, the flow direction of cooling water is from last down, this is opposite with the flow direction of hot gas flow, be favorable to taking away a large amount of heats that the burning of the interior lithium seminal vesicle of combustion chamber produced, because overheated production explosion when effectively preventing the combustion chamber and lighting a fire, and reduce the temperature from the gas-solid mixture of exhanst gas outlet pipeline exhaust, make the gas-solid mixture contract gradually in the cooling action of water jacket's volume, be favorable to the flue gas to be discharged.
Drawings
Fig. 1 is a schematic diagram of a lithium concentrate fluidized bed furnace according to an exemplary embodiment.
In the figure:
1. a feed pipe; 2. a furnace roof; 3. a pressure gauge; 4. a temperature meter; 5. an upper cover; 6. a water inlet; 7. an outer furnace wall; 8. the inner wall of the furnace; 9. sleeving a bottom; 10. an ignition device; 11. a gas burner; 12. an air tube; 13. a venturi tube; 14. indoor wall; 15. an ignition chamber; 16. a transparent window; 17. a water outlet; 18. a water jacket; 19. a combustion chamber; 20. an air outlet pipeline; 21. an electromagnetic valve.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic view of a lithium fine slag fluidized bed furnace according to an exemplary embodiment. As shown in fig. 1, the lithium fine slag fluidized combustion furnace includes: the ignition device comprises a feeding pipe 1, a combustion chamber 19, an ignition chamber 15, an ignition device 10, an air pipe 12, a water jacket 18 and an air outlet pipeline 20;
the combustion chamber 19 is a hollow cavity, one end of the feed pipe 1 penetrates through a furnace top cover 2 at the upper end of the combustion chamber 19 and extends into the combustion chamber 19, the other end of the feed pipe 1 is connected with a feeding device, the feeding device can input lithium refined slag to be processed into the combustion chamber 19 through the feed pipe 1 (the feeding device in any form can be selected as required, the specific structure of the type of the feeding device is not limited in the disclosure, as long as the feeding device can convey materials into the combustion chamber), an air outlet pipeline 20 is arranged at the upper end of the combustion chamber 19, and fluid generated in the combustion chamber 19 can be led out when the air outlet pipeline 20 is opened;
the top end of the water jacket 18 is covered with an upper cover 5, the bottom end of the water jacket 18 is provided with a sleeve bottom 9, the water jacket 18 is sleeved on the outer wall 7 of the combustion chamber 19, the outer side of the upper end of the water jacket 18 is provided with a water inlet 6, and the outer side of the lower end of the water jacket 18 is provided with a water outlet 17;
the ignition chamber 15 is a hollow chamber, the lower end of the combustion chamber 19 is connected with the upper end of the ignition chamber 15, and the interior of the combustion chamber 19 is communicated with the interior of the ignition chamber 15;
in a possible implementation, the combustion chamber 19 is divided into an upper part and a lower part in the order from top to bottom, and the inner diameter of the upper part of the combustion chamber 19 is larger than the inner diameter of the lower part of the combustion chamber 19.
The smaller inner diameter of the lower part of the combustion chamber 19 can reduce the air consumption required by the fluidization of the material at the lower part, and the larger inner diameter of the upper part of the combustion chamber 19 provides enough buffer space for the severe expansion of the heated air. The air at a higher temperature gradually shrinks in volume under the cooling effect of the water jacket 18 during the upward flow.
In a possible implementation mode, the furnace inner wall 8 of the combustion chamber 19 the upper portion with the lower part is a cylinder, the upper portion with connecting portion between the lower part is the inclined plane of the inverted round table, and the upper portion and the lower portion of the combustion chamber 19 are straight sections, further being favorable to the exhaust of flue gas.
In one possible implementation, the lower combustion chamber length to diameter ratio is greater than 2 and the lower combustion chamber length is greater than the upper combustion chamber length. The length-diameter ratio of the lower part of the combustion chamber is more than 2, so that the air consumption required by the fluidization of the material at the lower part is reduced, and the lithium fine slag is provided with more sufficient combustion time.
The ignition needle 10 device is arranged in the ignition chamber 15 and is used for generating flame in the ignition chamber 15; for example, the inner wall 14 of the ignition chamber 15 may have a cylindrical or inverted conical structure, the lower end is an outlet for the combustion products of the fine lithium slag, and the inner diameter of the inner wall 14 of the ignition chamber 15 may be smaller than the minimum inner diameter of the inner wall 8 of the combustion chamber 19. Ignition device 10 can include ignition needle 10 and gas nozzle 11, and the syringe needle of ignition needle 10 passes the lateral wall of ignition chamber 15 and stretches into in the ignition chamber 15, and the lateral wall that gas nozzle 11 passed ignition chamber 15 is located ignition chamber 15, and the syringe needle of ignition needle 10 is at the edge of gas nozzle 11, and the reliability of igniteing needs to be guaranteed to the distance of both apart.
An opening is formed in the lower end of the ignition chamber 15 and used for leading out residues generated after the combustion of the lithium fine slag;
the air outlet of the air pipe 12 penetrates through the side wall of the lower end of the ignition chamber 15 and is positioned in the ignition chamber 15, and is used for generating air flow spirally rising from bottom to top in the ignition chamber 15.
In a possible implementation, the lithium fine slag fluidized combustion furnace further comprises a venturi tube 13; the venturi tube 13 is radially disposed, and one end (which may also be a suction end of the venturi tube) of the venturi tube 13 is communicated with a lower end opening of the ignition chamber 15. The negative pressure formed inside the venturi tube 13 allows the combustion products to automatically and smoothly fall down and be transferred to the next process without an additional driving device.
In one possible implementation, the lithium fine slag fluidized combustion furnace further includes: a pressure gauge 3; the pressure gauge 3 is disposed in the combustion chamber 19 and is configured to detect a gas pressure in the combustion chamber 19. The pressure gauge 3 may assist a worker in detecting the pressure condition in the combustion chamber 19 in real time.
In one possible implementation, the lithium fine slag fluidized combustion furnace further includes: a solenoid valve 21 gate; the electromagnetic valve 21 door is arranged in the air outlet pipeline 20, and the electromagnetic valve 21 door can control the opening or closing of the air outlet pipeline 20. The opening and closing of the outlet duct 20 can be achieved by means of a solenoid valve 21, so as to discharge the fluid (which can be a gas, or a mixture of gas and solid) produced in the combustion chamber 19 as required
In a possible implementation, the lithium fine slag fluidized combustion furnace further comprises a temperature meter 4; the temperature meter 4 is disposed in the combustion chamber 19 for detecting the temperature in the combustion chamber 19. In this way, the temperature inside the combustion chamber 19 can be visually observed.
In one possible implementation, the side wall of the ignition chamber 15 is provided with a transparent window 16. For example, the transparent window 16 may be made of high temperature resistant glass, and a worker may observe whether the ignition device 10 is successfully ignited or not through the transparent window.
In a possible implementation manner, the inner side wall of the bottom end of the ignition chamber is shaped as a side surface of an inverted circular truncated cone, the air pipe is positioned on a tangent plane of a radial section of the side wall of the bottom end of the ignition chamber, and the air flow output by the air pipe is blown out along the tangent plane direction and revolves along the inner side wall of the bottom end of the ignition chamber to form a rising spiral air flow, so that the air flow blown out by the air pipe can automatically form a rising spiral air flow. The ascending spiral airflow can stir the falling lithium fine slag more fully, and the lithium fine slag is favorably combusted in the combustion chamber more fully.
In a possible realization, the other end of the feed pipe is located in the middle of the combustion chamber. Because the granularity of the lithium concentrate slag is in a millimeter range, the lithium concentrate slag is easily blown out of the combustion chamber by the upward blowing airflow, the other end of the feeding pipe is arranged in the middle of the combustion chamber, so that the falling lithium concentrate slag can be effectively reduced, the ascending airflow in the combustion chamber is blown out of the combustion chamber, and the retention time of the lithium concentrate slag in the combustion chamber is further increased.
In one possible implementation, the lithium fine slag fluidized combustion furnace further includes: the device comprises a controller, an electromagnetic valve and a pressure instrument; the pressure gauge is arranged in the combustion chamber and used for detecting the air pressure in the combustion chamber; the electromagnetic valve is arranged in the air outlet pipeline and used for controlling the opening or closing of the air outlet pipeline; the controller respectively with the controller with the manometer is connected, the controller is following under the condition that the pressure value that the manometer acquireed accords with the pressure value condition of predetermineeing, continuous control solenoid valve opens, makes air-out pipeline can discharge the gas of combustion chamber, until the controller is following the pressure value that the manometer acquireed does not accord with the pressure value condition of predetermineeing. The pressure value meeting the preset pressure value condition may be, for example, that the pressure value is greater than a preset pressure threshold, or that the pressure value is greater than or equal to the preset pressure threshold.
Like this, this disclosure through the above-mentioned cooperation of controller, solenoid valve and manometer, can be when detecting that the combustion chamber internal pressure is in normal range (be less than or equal to and predetermine the pressure threshold value), close out the tuber pipe way, further make the material fully burn in the combustion chamber to when detecting the combustion chamber pressure too big, in time open out the tuber pipe way, effectively avoid the combustion chamber because of the too big explosion that takes place of pressure.
In one possible implementation, the lithium fine slag fluidized combustion furnace further includes: a controller;
the controller is respectively connected with the temperature instrument and the feeding device, and controls the feeding device to start to convey the lithium refined slag to the combustion chamber under the condition that the temperature value obtained from the temperature instrument meets the preset temperature condition; the temperature value meeting the preset temperature condition can be represented as the temperature value being greater than a preset temperature threshold value or the temperature value being greater than or equal to the preset temperature threshold value.
And the controller controls the feeding device not to act under the condition that the temperature value acquired from the temperature instrument does not accord with the preset temperature condition.
Like this, this disclosure through controller and temperature appearance, feed arrangement's cooperation, can be in time the blowing when the temperature is fit for abundant burning in the combustion chamber, avoid the temperature to cross the phenomenon emergence that the wrong input material caused the unable abundant burning of material when low excessively.
In one example of an application, the operation of a lithium fine slag fluidized combustion furnace is as follows:
firstly, cooling water flows in through a water inlet and flows out of a cooling water outlet, and the flow rate of the cooling water flowing in and out is adjusted to form a water jacket with stable flow rate.
The gas enters the combustion chamber through the pipeline of the gas burner, the ignition needle works, the gas is combusted to release heat, and meanwhile, air flows into the ignition chamber through the air pipe at a certain flow rate to form upward spiral air flow.
When the controller monitors that the temperature in the combustion chamber reaches the combustion temperature of the lithium fine slag from the temperature instrument, the controller controls the feeding device to flow a gas-solid mixture of the lithium fine slag and air into the combustion chamber through the feeding pipeline, and the lithium fine slag is light fine-grained particles and is ignited in a very short time after entering the combustion chamber because the temperature in the combustion chamber reaches the combustion temperature of the lithium fine slag. When the particles are fully combusted and the mass of the combustion products is greater, the ascending gas flow is insufficient to fluidize the oxidation products, and the fully combusted oxidation products rapidly fall to the lower port of the ignition chamber and are transported by the venturi to the next process.
A large amount of oil smoke and particle-level solid particles are generated in the combustion process of the lithium fine slag, and the mixture of the gas and the solid flows out of a flue gas outlet pipeline and enters a subsequent flue gas purification treatment process.
The lithium fine slag fluidized combustion furnace further comprises: the electromagnetic valve is provided with an electric contact pressure gauge and a relay control device, and when the pressure in the combustion chamber reaches a setting value of the electric contact of the pressure gauge, the relay control device acts to open the electromagnetic valve. The combustion furnace is exhausted to ensure the safety of the combustion furnace, and the exhaust pressure can be changed by adjusting the setting value of the electric contact of the pressure gauge.
The lithium fine slag fluidized combustion furnace utilizes the fact that rising hot air flow generated by high-temperature flame meets falling materials during combustion of gas to enable the materials to be combusted and oxidized, meanwhile, air is blown into a combustion chamber through a tangential air inlet pipeline of an ignition chamber with a certain air inflow and generates spiral rising air flow, the lithium fine slag fluidized combustion furnace has the function of gas combustion supporting, the generated spiral rising air flow can enable the materials to be fully fluidized and slow down the falling speed of the materials, the retention time of the materials in the combustion chamber is prolonged, and finally continuous and complete combustion of the lithium slag materials is achieved,
the foregoing description of the embodiments of the present disclosure has been presented for purposes of illustration and description, but is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terms used herein were chosen in order to best explain the principles of the embodiments, the practical application, or technical improvements to the techniques in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
Claims (9)
1. A lithium concentrate fluidized combustion furnace, characterized in that the lithium concentrate fluidized combustion furnace comprises: the device comprises a feeding pipe, a combustion chamber, an ignition device, an air pipe, a water jacket and an air outlet pipeline;
the combustion chamber is a hollow cavity, one end of the feeding pipe penetrates through the upper end of the combustion chamber and extends into the combustion chamber, the other end of the feeding pipe is connected with a lithium refined slag conveying pipeline, the feeding pipe is used for guiding lithium refined slag to be processed into the combustion chamber, an air outlet pipeline is arranged at the upper end of the combustion chamber, and fluid generated in the combustion chamber can be led out when the air outlet pipeline is opened;
the water jacket is sleeved on the outer side wall of the combustion chamber, a water inlet is formed in the outer side of the upper end of the water jacket, and a water outlet is formed in the outer side of the lower end of the water jacket;
the ignition chamber is a hollow chamber, the lower end of the combustion chamber is connected with the upper end of the ignition chamber, and the interior of the combustion chamber is communicated with the interior of the ignition chamber;
the ignition device is arranged in the ignition chamber and is used for generating flame in the ignition chamber;
the lower end of the ignition chamber is provided with an opening for leading out residues generated after the combustion of the lithium fine slag;
and the air outlet of the air pipe penetrates through the side wall of the lower end of the ignition chamber and is positioned in the ignition chamber, and is used for generating air flow blown from bottom to top in the ignition chamber.
2. The lithium fine slag fluidized combustion furnace as claimed in claim 1, wherein the lithium fine slag fluidized combustion furnace further comprises a venturi tube;
the Venturi tube is arranged in the radial direction, and one end of the Venturi tube is communicated with the lower end opening of the ignition chamber.
3. The fluidized combustion furnace for lithium fine slag as claimed in claim 1, wherein the combustion chamber is divided into an upper part and a lower part in order from the top, and the inner diameter of the upper part of the combustion chamber is larger than that of the lower part of the combustion chamber.
4. The fluidized combustion furnace for lithium fine slag as claimed in claim 3, wherein the upper portion and the lower portion are both cylindrical, and a connecting portion between the upper portion and the lower portion is a slope of a truncated cone.
5. The fluidized combustion furnace for combustion of fine lithium slag as claimed in claim 3, wherein the length-to-diameter ratio of the lower portion of the combustion chamber is greater than 2, and the length of the lower portion of the combustion chamber is greater than the length of the upper portion of the combustion chamber.
6. The fluidized combustion furnace for producing fine lithium slag as claimed in claim 1, wherein a transparent window is formed in a side wall of the ignition chamber.
7. The fluidized combustion furnace for lithium fine slag as claimed in claim 1, wherein the bottom inside wall of the ignition chamber is shaped as a side surface of an inverted circular truncated cone, the gas pipe is located on a tangential plane of a radial cross section of the bottom side wall of the ignition chamber, and the gas pipe outputs a gas flow which is blown out in the tangential direction and revolves along the bottom inside wall of the ignition chamber to form a rising spiral gas flow.
8. The lithium concentrate fluidized combustion furnace as set forth in claim 1, further comprising: a controller and a temperature gauge;
the controller is respectively connected with the temperature instrument and the feeding device, and controls the feeding device to start to convey the lithium refined slag to the combustion chamber under the condition that the temperature value obtained from the temperature instrument meets the preset temperature condition;
and the controller controls the feeding device not to act under the condition that the temperature value acquired from the temperature instrument does not accord with the preset temperature condition.
9. The lithium fine slag fluidized combustion furnace as set forth in claim 1, further comprising: the electromagnetic valve, the pressure gauge and the relay control device;
the electromagnetic valve is connected in the air outlet pipeline and used for controlling the opening and closing of the air outlet pipeline;
the relay control device is connected with the electromagnetic valve, and when the relay control device is electrified, the electromagnetic valve can be opened, so that the air outlet pipeline is opened;
and under the condition that the pressure in the combustion chamber reaches the setting value of the pressure instrument electric contact, the pressure instrument electric contact enables the relay control device to be powered on to open the electromagnetic valve, so that the combustion furnace continuously exhausts until the pressure in the combustion chamber is smaller than the setting value of the pressure instrument electric contact.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115254288A (en) * | 2022-08-22 | 2022-11-01 | 重庆路安特路面材料有限公司 | Breaker is used in pitch raw materials processing production |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115254288A (en) * | 2022-08-22 | 2022-11-01 | 重庆路安特路面材料有限公司 | Breaker is used in pitch raw materials processing production |
| CN115254288B (en) * | 2022-08-22 | 2023-07-25 | 重庆路安特路面材料有限公司 | Crushing device for processing and producing asphalt raw materials |
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