Self-cleaning condensation system for charcoal dense smoke

Abstract

The invention relates to a self-cleaning condensation system for charcoal dense smoke. The self-cleaning condensation system comprises a first condenser, a second condenser, a wood tar collecting tank, a wood vinegar collecting tank, a first isolating valve, a second isolating valve and a third isolating valve, one side, close to the first condenser, of the second isolating valve is connected with an ethanol pipe; one side, close to the second condenser, of the second isolating valve is connected with a water pipe; the side, close to the first condenser, of the wood tar collecting valve is connected with a first cleaning pipe, and the first cleaning pipe is connected with a cleaning liquid collecting tank; the side, close to the second condenser, of the wood vinegar collecting valve is connected with a second cleaning pipe, and the second cleaning pipe is connected with a water recycling tank. The first condenser is cleaned with ethyl alcohol, the second condenser is cleaned with water, cleaning is convenient, and meanwhile the cleaning effect is good. A plurality of valves are controlled by the PLC, so that a production mode, a cleaning mode and an ethanol distillation recovery mode can be mutually converted quickly, and errors are not easy to occur.

Description

Technical Field

[0001] This application relates to the technical field of charcoal production systems, and in particular to a self-cleaning condensation system for charcoal smoke. Background Technology

[0002] The production of charcoal requires burning wood, which produces a large amount of thick smoke containing wood tar, wood vinegar, and dust. If emitted directly, it will cause air pollution. Therefore, the smoke needs to be purified before being released.

[0003] In related technologies, wood tar and wood vinegar are removed from dense smoke using a condenser, and the remaining dense smoke is then filtered and discharged. After prolonged use, the inner wall of the condenser is prone to being adhered to by wood tar, wood vinegar, and soot. To prevent condenser blockage, it needs to be cleaned, but this requires disassembling the condenser for cleaning, which is quite troublesome. Summary of the Invention

[0004] To facilitate the cleaning of the condenser, this application provides a self-cleaning condensation system for charcoal smoke.

[0005] This application provides a self-cleaning condensation system for dense charcoal smoke, which adopts the following technical solution:

[0006] A self-cleaning condensation system for charcoal smoke includes a first condenser and a second condenser connected by pipes. A wood tar collection tank is connected to the bottom of the first condenser by a pipe, and a wood vinegar collection tank is connected to the bottom of the second condenser by a pipe. A first isolation valve is installed on the pipe for smoke to enter the first condenser, and a second isolation valve is installed on the pipe connecting the first condenser and the second condenser. The pipe for smoke to exit the second condenser is a smoke exhaust pipe, and a third isolation valve is installed on the smoke exhaust pipe.

[0007] The second isolation valve is connected to an ethanol pipe on the side near the first condenser, and a water pipe is connected to the side near the second condenser; a wood tar collection valve is installed on the pipe connecting the first condenser and the wood tar collection tank, and a first cleaning pipe is connected to the side of the wood tar collection valve near the first condenser, the first cleaning pipe is connected to a cleaning liquid collection tank, and a cleaning valve is connected to the first cleaning pipe.

[0008] A wood vinegar collection valve is installed on the pipe connecting the second condenser and the wood vinegar collection tank. A second cleaning pipe is connected to the side of the wood vinegar collection valve near the second condenser. The second cleaning pipe is connected to a water recovery tank and a water valve is connected to the second cleaning pipe.

[0009] By adopting the above technical solution, during charcoal burning, the first, second, and third isolation valves are opened, along with the wood tar collection valve and the wood vinegar collection valve, while the remaining valves are closed. The dense smoke first passes through the first condenser, whose temperature is controlled at 150-160℃, liquefying the wood tar before it enters the wood tar collection tank. The remaining dense smoke enters the second condenser, whose temperature is controlled at 70-80℃, liquefying the wood vinegar before it enters the wood vinegar collection tank.

[0010] When cleaning the first and second condensers, close the first, second, and third isolation valves to separate them. Close the wood tar collection valve and the wood vinegar collection valve, and open the cleaning valve and the water valve. Ethanol is introduced into the first condenser through the ethanol pipe for cleaning, and the resulting mixture flows through the first cleaning pipe into the cleaning liquid collection tank. Water is introduced into the second condenser through the water pipe for cleaning, and the resulting mixture flows through the second cleaning pipe into the water recovery tank. Because wood tar is readily soluble in ethanol, cleaning with ethanol yields better results; wood vinegar is readily soluble in water, so cleaning with water reduces cleaning costs. Cleaning the first and second condensers separately facilitates cleaning and improves cleaning effectiveness.

[0011] Optionally, the bottom of the cleaning fluid collection tank is connected to a reflux pipe, and a reflux pump and a reflux valve are installed on the reflux pipe. The other end of the reflux pipe is connected to an ethanol pipe, and an ethanol valve is connected to the ethanol pipe. The ethanol valve is located on the side of the reflux pipe away from the first condenser.

[0012] By adopting the above technical solution and setting up a reflux pipe and reflux pump, it is convenient to clean the first condenser with ethanol multiple times, thereby further improving the cleaning effect.

[0013] Optionally, a waste liquid treatment tank is connected to the bottom of the cleaning liquid collection tank via a connecting pipe, and a waste liquid treatment valve is connected to the connecting pipe. A distillation pipe is connected to the top of the waste liquid treatment tank, and the other end of the distillation pipe is connected to the top of the cleaning liquid collection tank. The bottom of the waste liquid treatment tank is connected to the top of the wood tar collection tank via a collecting pipe, and a collecting valve is connected to the collecting pipe. An electric heating element is arranged around the outer wall of the waste liquid treatment tank.

[0014] By adopting the above technical solution, the waste liquid treatment valve is opened, and the mixture of ethanol, wood tar, and soot in the cleaning liquid collection tank is discharged into the waste liquid treatment tank. An electric heating element heats the mixture, controlling the heat collection temperature at approximately 80°C to distill off the ethanol. The ethanol returns to the cleaning liquid collection tank through a distillation tube, and a reflux pump can then be used to drive the cleaning of the first condenser, thus saving costs. Simultaneously, the condensed and recovered ethanol reaches a temperature of approximately 50°C. Heated ethanol has better solubility for wood tar, increasing the cleaning speed and reducing the power consumption of the recovery pump. The remaining material in the waste liquid treatment tank is discharged into the wood tar collection tank for the same treatment by opening a collection valve.

[0015] Optionally, an ethanol recovery condenser is connected to the waste liquid treatment tank, and the ethanol recovery condenser is positioned at a height higher than the cleaning liquid collection tank.

[0016] By adopting the above technical solution, the ethanol can be cooled easily, and after liquefaction, it can enter the cleaning fluid collection tank.

[0017] Optionally, the end of the exhaust pipe furthest from the second condenser is spirally wound around the outer wall of the wood tar collection tank.

[0018] By adopting the above technical solution, the freezing point of wood tar is about 20°C. By spirally winding the end of the exhaust pipe away from the second condenser around the outer wall of the wood tar collection tank, the inside of the wood tar collection tank is kept warm, so that the wood tar always remains in a liquid state, making it convenient for the wood tar to be discharged from the wood tar collection tank.

[0019] Optionally, a wet electrostatic precipitator is provided at the end of the exhaust pipe away from the second condenser.

[0020] By adopting the above technical solutions, wet electrostatic precipitators can effectively purify dense smoke, reduce the particulate matter content in the smoke to meet emission requirements, and thus protect the environment.

[0021] Optionally, it also includes a PLC controller, which controls the first isolation valve, the second isolation valve, the third isolation valve, the wood tar collection valve, the cleaning valve, the wood vinegar collection valve, the water valve, the reflux pump, the reflux valve, the ethanol valve, and the waste liquid treatment valve via electrical signals.

[0022] By adopting the above technical solution, this application solution has a large number of valves. A PLC controller is used to control multiple valves. Then, production mode, cleaning mode and ethanol distillation and recovery mode are set to realize the integrated control of the opening and closing of multiple valves under different modes, quickly change modes, and is less prone to errors.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. The first condenser is cleaned with ethanol and the second condenser is cleaned with water, which makes cleaning convenient and effective.

[0025] 2. By installing a reflux pump and a waste liquid recovery tank, ethanol can be recycled, saving costs;

[0026] 3. By setting up a PLC controller to control several valves, the switching between production mode, cleaning mode and ethanol distillation and recovery mode can be rapid and error-free. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the process of a self-cleaning condensation system for charcoal smoke according to an embodiment of this application.

[0028] Explanation of reference numerals in the attached drawings: 1. First condenser; 2. Second condenser; 3. Wood tar collection tank; 4. Wood vinegar collection tank; 5. First isolation valve; 6. Second isolation valve; 7. Exhaust pipe; 8. Third isolation valve; 9. Ethanol pipe; 10. Ethanol valve; 11. Water pipe; 12. On / off valve; 13. Wood tar collection valve; 14. First cleaning pipe; 15. Cleaning liquid collection tank; 16. Cleaning valve; 17. Wood vinegar collection valve; 18. Second cleaning pipe; 19. Water recovery tank; 20. Water valve; 21. Return pipe; 22. Return pump; 23. Return valve; 24. Waste liquid treatment tank; 25. Waste liquid treatment valve; 26. Distillation pipe; 27. Collection valve; 28. Ethanol recovery condenser; 29. ​​Wet electrostatic precipitator; 30. PLC controller; 31. Connecting pipe; 32. Collection pipe. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1 This application will be described in further detail.

[0030] This application discloses a self-cleaning condensation system for dense charcoal smoke. (Refer to...) Figure 1 The charcoal smoke self-cleaning condensation system includes a first condenser 1 and a second condenser 2 connected by pipes. A wood tar collection tank 3 is connected below the first condenser 1 by a pipe, and a wood vinegar collection tank 4 is connected below the second condenser 2 by a pipe. The smoke first enters the first condenser 1, where the wood tar is condensed. The condensed wood tar then flows into the wood tar collection tank 3. The remaining smoke in the first condenser 1 enters the second condenser 2, where the wood vinegar is condensed. The condensed wood vinegar then flows into the wood vinegar collection tank 4.

[0031] A first isolation valve 5 is connected to the pipe supplying dense smoke into the first condenser 1, and a second isolation valve 6 is connected to the pipe connecting the first condenser 1 and the second condenser 2. The pipe supplying dense smoke to the second condenser 2 is an exhaust pipe 7, and a third isolation valve 8 is connected to the exhaust pipe 7. When the first isolation valve 5, the second isolation valve 6, and the third isolation valve 8 are closed, the first condenser 1 and the second condenser 2 are isolated separately.

[0032] The second isolation valve 6 is connected to an ethanol pipe 9 on the side near the first condenser 1, and an ethanol valve 10 is connected to the ethanol pipe 9; the second isolation valve 6 is connected to a water pipe 11 on the side near the second condenser 2, and an on / off valve 12 is connected to the water pipe 11.

[0033] A wood tar collection valve 13 is connected to the pipe connecting the first condenser 1 and the wood tar collection tank 3. A first cleaning pipe 14 is connected to the side of the wood tar collection valve 13 closest to the first condenser 1. The first cleaning pipe 14 is connected to a cleaning liquid collection tank 15, and a cleaning valve 16 is connected to the first cleaning pipe 14. A wood vinegar collection valve 17 is connected to the pipe connecting the second condenser 2 and the wood vinegar collection tank 4. A second cleaning pipe 18 is connected to the side of the wood vinegar collection valve 17 closest to the second condenser 2. The second cleaning pipe 18 is connected to a water recovery tank 19, and a water valve 20 is connected to the second cleaning pipe 18.

[0034] The bottom of the cleaning fluid collection tank 15 is connected to a return pipe 21, which is connected to a return pump 22 and a return valve 23. The other end of the return pipe 21 is connected to an ethanol pipe 9, and the ethanol valve 10 is located on the side of the return pipe 21 away from the first condenser 1. The cleaning fluid in the cleaning fluid collection tank 15 is circulated by the return pump 22 to clean the first condenser 1, resulting in a good cleaning effect for the condenser.

[0035] A waste liquid treatment tank 24 is connected to the bottom of the cleaning liquid collection tank 15 via a connecting pipe 31. The top of the waste liquid treatment tank 24 is lower than the bottom of the cleaning liquid collection tank 15, and the liquid in the cleaning liquid collection tank 15 enters the waste liquid treatment tank 24 by gravity. A waste liquid treatment valve 25 is connected to the connecting pipe 31, and a distillation tube 26 is connected to the top of the waste liquid treatment tank 24. The other end of the distillation tube 26 is connected to the top of the cleaning liquid collection tank 15. The outer wall of the waste liquid treatment tank 24 has multiple turns of electric heating tube spirally wound around it, which facilitates heating of the waste liquid treatment tank 24 and controls the temperature at about 80°C for ethanol distillation.

[0036] The bottom of the waste liquid treatment tank 24 is connected to the top of the wood tar collection tank 3 via a manifold 32. The bottom of the waste liquid treatment tank 24 is higher than the top of the wood tar collection tank 3. A manifold valve 27 is connected to the manifold 32. The wood tar remaining at the bottom of the waste liquid treatment tank 24 enters the wood tar collection tank 3 through the manifold 32.

[0037] An ethanol recovery condenser 28 is connected to the waste liquid treatment tank 24. The ethanol recovery condenser 28 is positioned higher than the cleaning liquid collection tank 15, so that the distilled ethanol is condensed and enters the cleaning liquid collection tank to recover the ethanol and save costs.

[0038] The end of the exhaust pipe 7 furthest from the second condenser 2 is connected to a wet electrostatic precipitator 29. The wet electrostatic precipitator 29 treats the dust and microparticles in the dense smoke, so that the dense smoke meets the emission standards.

[0039] The exhaust pipe 7 is located between the second condenser 2 and the wet electrostatic precipitator 29. The pipe section is spirally wound around the outer wall of the wood tar collection tank 3 to keep the inside of the wood tar collection tank 3 warm, so that the wood tar does not easily solidify inside the wood tar collection tank 3, thus facilitating the discharge of the wood tar from the wood tar collection tank 3.

[0040] The self-cleaning condensation system for charcoal smoke also includes a PLC controller 30. The PLC controller 30 controls the first condenser 1, the second condenser 2, the ethanol recovery condenser 28, the first isolation valve 5, the second isolation valve 6, the third isolation valve 8, the ethanol valve 10, the on / off valve 12, the wood tar collection valve 13, the cleaning valve 16, the wood vinegar collection valve 17, the water valve 20, the reflux pump 22, the reflux valve 23, the waste liquid treatment valve 25, the collection valve 27, the electric heating tube, and the wet electrostatic precipitator 29 via electrical signals, and sets the production mode, the cleaning mode, and the ethanol distillation recovery mode.

[0041] The implementation principle of a self-cleaning condensation system for charcoal smoke in this embodiment is as follows: When the PLC controller 30 is set to production mode: the first isolation valve 5, the second isolation valve 6, the third isolation valve 8, the wood tar collection valve 13, and the wood vinegar collection valve 17 are open, while the remaining valves and equipment are closed. The first condenser 1 and the second condenser 2 are open to condense the smoke, and the wet electrostatic precipitator 29 is open to purify the smoke. The smoke generated by combustion in the furnace passes sequentially through the first condenser 1, the second condenser 2, and the wet electrostatic precipitator 29. Wood tar is condensed in the first condenser 1, and wood vinegar is condensed in the second condenser 2. The condensed wood tar and wood vinegar are collected in the wood tar collection tank 3 and the wood vinegar collection tank 4, respectively. The remaining smoke in the second condenser 2 is discharged after being precipitated by the electrostatic precipitator.

[0042] When the PLC controller 30 is set to cleaning mode: cleaning valve 16, water valve 20, on / off valve 12, and reflux valve 23 are opened, while the remaining valves are closed, and reflux pump 22 is activated. Reflux pump 22 drives the ethanol in cleaning fluid collection tank 15 through reflux pipe 21 and the first condenser pipe before returning to cleaning fluid collection tank 15. Ethanol is only added when the ethanol in cleaning fluid collection tank 15 is insufficient, by opening ethanol valve 10. Water enters through water pipe 11, flushes the second condenser 2, and then enters water recovery tank 19.

[0043] When the PLC controller 30 is set to ethanol distillation and recovery mode: the collection valve 27 and the reflux valve 23 are closed, the other valves are opened, and the ethanol recovery condenser 28 and the electric heating tube are turned on. The electric heating tube heats the liquid in the waste liquid treatment tank 24, distills out ethanol, and the ethanol enters the cleaning liquid collection tank 15 to achieve recovery and save costs.

[0044] In summary, cleaning the first condenser 1 with ethanol and the second condenser 2 with water makes cleaning convenient and effective; ethanol can be recycled, saving cleaning costs; and the use of a PLC controller 30 for integrated control makes cleaning convenient and less prone to errors.

[0045] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A self-cleaning condensation system for charcoal smoke, comprising a first condenser (1) and a second condenser (2) connected by pipes, wherein a wood tar collection tank (3) is connected below the first condenser (1) by pipes, and a wood vinegar collection tank (4) is connected below the second condenser (2) by pipes, characterized in that: A first isolation valve (5) is installed on the pipe through which the first condenser (1) supplies dense smoke, and a second isolation valve (6) is installed on the pipe connecting the first condenser (1) and the second condenser (2). The pipe through which the dense smoke is discharged from the second condenser (2) is a smoke exhaust pipe (7), and a third isolation valve (8) is installed on the smoke exhaust pipe (7). An ethanol pipe (9) is connected to the side of the second isolation valve (6) near the first condenser (1), and a water pipe (11) is connected to the side of the second isolation valve (6) near the second condenser (2). A wood tar collection valve (13) is provided on the pipe connecting the first condenser (1) and the wood tar collection tank (3). The wood tar collection valve (13) is connected to a first cleaning pipe (14) on the side near the first condenser (1). The first cleaning pipe (14) is connected to a cleaning liquid collection tank (15). A cleaning valve (16) is connected to the first cleaning pipe (14). A wood vinegar collection valve (17) is provided on the pipe connecting the second condenser (2) and the wood vinegar collection tank (4). The wood vinegar collection valve (17) is connected to a second cleaning pipe (18) on the side near the second condenser (2). The second cleaning pipe (18) is connected to a water recovery tank (19). A water valve (20) is connected to the second cleaning pipe (18).

2. The self-cleaning condensation system for charcoal smoke according to claim 1, characterized in that: The bottom of the cleaning fluid collection tank (15) is connected to a return pipe (21). A return pump (22) and a return valve (23) are installed on the return pipe (21). The other end of the return pipe (21) is connected to an ethanol pipe (9). An ethanol valve (10) is connected to the ethanol pipe (9). The ethanol valve (10) is located on the side of the return pipe (21) away from the first condenser (1).

3. The self-cleaning condensation system for charcoal smoke according to claim 2, characterized in that: The cleaning fluid collection tank (15) is connected to a waste liquid treatment tank (24) via a connecting pipe (31) below it. A waste liquid treatment valve (25) is connected to the connecting pipe (31). A distillation pipe (26) is connected to the top of the waste liquid treatment tank (24). The other end of the distillation pipe (26) is connected to the top of the cleaning fluid collection tank (15). The bottom of the waste liquid treatment tank (24) is connected to the top of the wood tar collection tank (3) via a collecting pipe (32). A collecting valve (27) is connected to the collecting pipe (32). An electric heating tube is arranged around the outer wall of the waste liquid treatment tank (24).

4. The self-cleaning condensation system for charcoal smoke according to claim 3, characterized in that: An ethanol recovery condenser (28) is connected to the waste liquid treatment tank (24), and the ethanol recovery condenser (28) is positioned at a height higher than the cleaning liquid collection tank (15).

5. A self-cleaning condensation system for charcoal smoke according to claim 3, characterized in that: The end of the exhaust pipe (7) away from the second condenser (2) is spirally wound around the outer wall of the wood tar collection tank (3).

6. The self-cleaning condensation system for charcoal smoke according to claim 1, characterized in that: A wet electrostatic precipitator (29) is installed at the end of the exhaust pipe (7) away from the second condenser (2).

7. A self-cleaning condensation system for charcoal smoke according to claim 3, characterized in that: It also includes a PLC controller (30), which controls the first isolation valve (5), the second isolation valve (6), the third isolation valve (8), the wood tar collection valve (13), the cleaning valve (16), the wood vinegar collection valve (17), the water valve (20), the reflux pump (22), the reflux valve (23), the ethanol valve (10), and the waste liquid treatment valve (25) via electrical signals.

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