CN215755276U

CN215755276U - Biochar production conveying system

Info

Publication number: CN215755276U
Application number: CN202121375613.5U
Authority: CN
Inventors: 包姗; 马英; 姚咏歌; 陈婷; 文珊; 杨有余
Original assignee: Yonker Environmental Protection Co ltd
Current assignee: Yonker Environmental Protection Co ltd
Priority date: 2021-06-21
Filing date: 2021-06-21
Publication date: 2022-02-08
Anticipated expiration: 2031-06-21

Abstract

The utility model provides a biochar production and conveying system which comprises a biochar storage bin with a feeding hole and a discharging hole, a biochar production system, a feeding system for conveying biochar powder to the biochar storage bin, and a discharging system for outputting the biochar powder in the biochar storage bin; the biochar production system, the feeding system the feed inlet links to each other in proper order, the discharge gate has connected gradually the feed system the discharge system, the feed system with the junction intercommunication of discharge system has air supply system. According to the utility model, the pneumatic gate valve is adjusted according to the removal rate of the dioxin, so that the addition amount of the biochar is controlled, and the adsorption effect of the dioxin in the ambient air is improved.

Description

Biochar production conveying system

Technical Field

The utility model relates to the technical field of biochar, in particular to a biochar production and conveying system.

Background

With the development of science and technology, a lot of toxic and harmful smoke is generated during ferrous metallurgy and waste incineration. The generated flue gas mainly comprises acidic gas (HCl, HF, SOx and the like), dust (particulate matters), heavy metals (Hg, Pb, Cr and the like) and organic highly toxic pollutants (dioxin and the like).

Dioxin is mainly generated when wastes containing chlorine pesticides, rust removers, plastics, synthetic resins and the like are incinerated and is listed as a first-class carcinogenic substance by the world health organization. The method has great influence on the environment which people live in, and has complex flue gas purification treatment process in order to meet increasingly strict national and local flue gas emission standards and reduce the harm to the surrounding environment.

The existing flue gas treatment technology is divided into a wet method and a dry method. The wet purification process has the highest pollutant purification efficiency, but has complex flow, more supporting equipment and subsequent wastewater treatment problems; the dry purification process is simple, low in investment and convenient to operate and maintain, is an ideal choice in many occasions, and the dry purification system takes a conveying system as a core component. The flue gas purification conveying system in the prior art mainly purifies activated carbon, and because the granularity of activated carbon is fine, specific gravity is light, is difficult to control its input volume, and the activated carbon is revealed and can be caused the pollution to the surrounding environment, and the dioxin in the waste gas can't be thoroughly purified to the activated carbon volume is too little, and excessive activated carbon then can increase the cost.

The patent with publication number CN210682471U discloses an active carbon metering and conveying system, which comprises an active carbon bin, a variable-frequency screw feeder and a weighing module; the weighing module is arranged at the bottom of the variable-frequency screw feeder; the activated carbon bin is arranged above the variable-frequency screw feeder; the bottom of the activated carbon bin is provided with a gate valve, the bottom of the gate valve is connected with a rotary valve feeder, the discharge end of the rotary valve feeder is connected with an intermediate bin through a connecting pipe, and the intermediate bin is arranged at the feed inlet of the variable-frequency screw feeder; the discharge port department of frequency conversion screw feeder is connected with active carbon injection pipeline group, and active carbon injection pipeline group is including the injection main pipe of being connected with the discharge port of frequency conversion screw feeder. The utility model discloses a can carry out the ration to activated carbon powder and carry, utilize the air current of high pressure, high current to make the abundant reaction and the absorption of activated carbon powder and flue gas simultaneously, this utility model still has simple easy, characteristics with low costs in addition. However, the delivery system can only control the adding amount of the activated carbon by weighing, and cannot adjust the adding amount of the activated carbon according to the actual requirement of adsorbing dioxin in the air.

In addition, after the water area is polluted, part of pollutants in the water can be stored in the bottom mud through precipitation or particle adsorption and released again under proper conditions, so that the pollutants become secondary pollution sources, and the pollution of the bottom mud of the river channel is increasingly and widely concerned.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a biochar production and conveying system which can simultaneously realize biochar production, transportation and environmental air treatment.

The technical scheme of the utility model is as follows: the utility model discloses a production and conveying system for biochar, which comprises a biochar storage bin with a feeding hole and a discharging hole, a biochar production system, a feeding system for conveying biochar powder to the biochar storage bin, and a discharging system for outputting the biochar powder in the biochar storage bin; the biochar production system, the feeding system the feed inlet links to each other in proper order, the discharge gate has connected gradually the feed system the discharge system, the feed system with the junction intercommunication of discharge system has air supply system.

Preferably, the feeding system comprises a double-helix quantitative feeder, a feeding hole of the double-helix quantitative feeder is communicated with a discharging hole through a pipeline, a pneumatic gate valve is arranged on the pipeline, and the discharging hole of the double-helix quantitative feeder is connected with the discharging system.

Preferably, the discharging system comprises a pipeline mixer, an electric valve, an electromagnetic flowmeter and a dioxin concentration detector which are sequentially connected, the pipeline mixer is respectively connected with the feeding system and the air supply system, and the output end of the dioxin concentration detector is connected with the outlet flue header pipe. And the pneumatic gate valve is adjusted according to the removal rate of the dioxin, so that the addition amount of the biochar is controlled, and the adsorption effect of the dioxin in the ambient air is improved.

Preferably, the air supply system comprises a fan, a safety valve and a butterfly valve which are connected in sequence, the fan is communicated with ambient air, the butterfly valve is communicated with the pipeline mixer, and a pressure gauge is further arranged on a pipeline connected with the fan and the safety valve.

Preferably, the biochar production system comprises a carbonization furnace, a vibrating sieving device, an activation groove and a delivery pump which are connected in sequence, and a discharge hole of the delivery pump is connected with an inlet of the feeding system.

Preferably, the feeding system comprises a charcoal powder tank and an electric ball valve which are connected with each other, one end of the electric ball valve is connected with the air for the instrument, the other end of the electric ball valve is connected with the charcoal powder tank, and the charcoal powder tank is connected with the feeding hole through a feeding pipe.

Preferably, the side surface of the biochar storage bin is provided with a high level indicator and a low level indicator from top to bottom, and feeding is adjusted through readings of the high level indicator and the low level indicator.

The pneumatic gate valve is connected with the double-helix quantitative feeder through flexible connection.

Preferably, the system further comprises an explosion-proof system, wherein the explosion-proof system comprises a safety valve, a regulating valve, a nitrogen protection system and a temperature sensor. The temperature sensor is used for sensing the temperature in the biochar storage bin.

Preferably, the device also comprises a negative pressure system, wherein the negative pressure system comprises a ball valve and a bin top dust remover; one end of the ball valve is connected with the air for the instrument, and the other end of the ball valve is sequentially connected with the bin top dust remover and the charcoal storage bin.

Preferably, the biochar storage bin is further provided with an access hole.

Compared with the related technology, the utility model has the beneficial effects that:

firstly, the biochar conveying system is provided with a nitrogen protection system, so that safety guarantee is added on the basis of saving labor force;

the flow rate of the biochar conveying system is controlled by adopting electromagnetic flow, the outlet header pipe is provided with a detector, so that the biochar can adsorb dioxin to the maximum extent, resource waste caused by falling to an ash hopper because the biochar cannot be adsorbed due to too much biochar feeding is avoided, in addition, the biochar feeding amount can be accurately controlled, the process is optimized, the resources and the cost are saved, and the generation of waste materials and waste residues is reduced;

thirdly, the biochar conveying system is convenient to install, overhaul and operate;

drawings

FIG. 1 is a schematic structural diagram of a biochar delivery system provided by the present invention;

fig. 2 is a schematic connection diagram of a main structure of the biochar delivery system provided by the utility model.

In the drawings: 1. a ball valve; 2. a dust remover at the top of the bin; 3. an access hole; 4. a feed inlet; 5. a high level gauge; 6. a low level indicator; 7. a biochar storage bin; 8. a temperature sensor; 9. a safety valve; 10. adjusting a valve; 11. a flange plate; 12. a nitrogen protection system; 13. a manual gate valve; 14. a pneumatic gate valve; 15. soft connection; 16. a double helix doser; 17. a fan; 18. a pressure gauge; 19. a butterfly valve; 20. a pipeline mixer; 21. an electrically operated valve; 22. an electromagnetic flow meter; 23. a charcoal powder tank; 24. an electric ball valve; 25. a feed pipe; 26. dioxin concentration detector (combustible gas detection alarm FH 100A-pan-sea technology); 27. a discharge port; 28. a feed system; 29. a feed system; 30. a discharge system; 31. an air supply system; 32. a negative pressure system; 33. an explosion-proof system; 34. an activation tank; 35. a delivery pump; 36. a vibratory screening device; 37. a carbonization furnace; 38. a biochar production system.

Detailed Description

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. For convenience of description, the words "upper", "lower", "left" and "right" in the following description are used only to indicate the correspondence between the upper, lower, left and right directions of the drawings themselves, and do not limit the structure.

As shown in fig. 1-2, the present embodiment provides a biochar conveying system, which includes a biochar storage 7 having a feeding port 4 and a discharging port 27, a biochar production system 38, a feeding system 28 for conveying biochar powder to the biochar storage 7, a discharging system 30 for outputting the biochar powder in the biochar storage 7, a negative pressure system 32 for forming a negative pressure in the biochar storage 7, and an explosion-proof system 33 for preventing the biochar storage 7 from exploding due to an over-high temperature. The biochar production system 38, the feeding system 28 and the feed inlet 4 of the biochar storage bin 7 are sequentially connected, the discharging system 30 is connected with the discharge hole 27 of the biochar storage bin 7 through a feeding system 29, and an air supply system 31 is arranged at the joint of the feeding system 29 and the discharging system 30. The feed inlet 4 is positioned at the top of the biochar storage bin 7, and the discharge outlet 27 is positioned at the bottom of the biochar storage bin 7.

The feeding system 28 comprises a biological carbon powder tank 23 and an electric ball valve 24, one end of the electric ball valve 24 is connected with air for instruments, the other end of the electric ball valve is connected with the biological carbon powder tank 23, and the biological carbon powder tank 23 is connected with the feeding hole 4 through a feeding pipe 25.

And the biochar storage bin 7 is also provided with a high level indicator 5 and a low level indicator 6 which are used for controlling the feeding amount of the feeding system 28.

The electric ball valve 24 is controlled by the readings of the high level indicator 5 and the low level indicator 6, and the charging of the biochar storage bin 7 is completed. When the carbon powder in the biological carbon storage bin 7 is lower than the low liquid level meter 6, the electric ball valve is opened, and the carbon powder in the biological carbon powder tank 23 is conveyed into the biological carbon storage bin 7 through the air feeding pipe 25 by the instrument. When the carbon powder in the biological carbon storage bin 7 is higher than the liquid level meter 5, the electric ball valve 24 is closed, and the carbon powder in the biological carbon powder tank 23 is stopped being conveyed into the biological carbon storage bin 7. The biochar is prepared by carbonizing river sediment at high temperature in a vacuum atmosphere tubular electric furnace and activating the carbonized river sediment.

The feeding system 29 comprises a manual gate valve 13, a pneumatic gate valve 14 and a double-helix quantitative feeder 16 which are sequentially connected from the discharge hole 27, and the double-helix quantitative feeder 16 is connected with the air supply system 31 and the discharge system 30. The pneumatic gate valve 14 and the double helix doser 16 are connected by a flexible connection 15. The flexible connection 15 enables flexible connection of the pipes, and may be a flexible joint in general.

The discharging system 30 comprises a pipeline mixer 20, an electric valve 21, an electromagnetic flowmeter 22 and a dioxin concentration detector 26 which are connected in sequence. The output end of the dioxin concentration detector 26 is connected with an outlet flue header pipe.

The air supply system 31 comprises a fan 17, a safety valve 9 and a butterfly valve 19 which are connected in sequence, and the pipeline of the air supply system 31 and the double helix quantitative feeder 16 are connected with the pipeline mixer 20 through pipelines. The butterfly valve 19 is arranged on the air supply system 31 adjacent to the feeding system 29 and the discharging system 30. An air inlet of the fan 17 is connected with ambient air, and the fan 17 is used for sending the ambient air to the pipeline mixer 20 of the discharging system 30. The fan 17 is connected with the pressure gauge 18 through a flexible connection 15.

When the device works, the environment air is conveyed to the pipeline mixer 20 through the fan 17, and the charcoal powder output by the double-helix quantitative feeder 16 is uniformly mixed in the pipeline mixer 20 and then output from the discharging system 30. The flow rate of the carbon powder in the discharge system 30 is measured by the electromagnetic flow meter 22: when the flow rate is higher than a set value, the pneumatic gate valve 14 and the double helix quantitative feeder 16 reduce the feeding of the carbon powder; when the flow rate is lower than the set value, the pneumatic gate valve 14 and the double helix doser 16 are used for increasing the carbon powder feeding. In addition, when the biochar bin 7 is temporarily charged, the electric valve 21 is temporarily closed.

When the dioxin concentration detector detects that the content of the dioxin in the pipeline of the discharging system 30 is highAt the set value (0.5ng TEQ/m)³) In the process, the pneumatic gate valve 14 and the double-helix quantitative feeder 16 are used for adding the carbon powder; when the dioxin concentration detector 26 detects that the content of the dioxin in the pipeline of the discharging system 30 is lower than a set value (0.5ng TEQ/m)³) In the meantime, the pneumatic gate valve 14 and the double helix doser 16 are made to reduce the carbon powder loading.

The charcoal powder is prepared from river bottom mud by three steps of a carbonization furnace 37, a vibrating sieving device 36 and an activation tank 34.

The explosion-proof system 33 comprises a safety valve 9, a regulating valve 10, a nitrogen protection system 12 and a temperature sensor 8 for sensing the temperature in the biochar storage bin 7, wherein the nitrogen protection system 12, the safety valve 9 and the regulating valve 10 are sequentially connected with the biochar storage bin 7. The temperature sensor 8 is arranged on the biochar storage bin 7 and is positioned on the opposite side of the high level gauge 5. The pipeline of the explosion-proof system 33 is communicated with the bottom of the biochar storage bin 7 through a flange plate 11.

When the biological carbon storage bin is in work, the temperature alarm value is set, when the temperature in the biological carbon storage bin 7 is higher than the temperature alarm value, the regulating valve 10 is opened, nitrogen is input into the biological carbon storage bin 7, and the biological carbon storage bin 7 is prevented from exploding.

The negative pressure system 32 comprises a ball valve 1 and a bin top dust remover 2 communicated with the biochar storage bin 7. The top dust remover 2 is communicated with the top of the biochar storage bin 7. One end of the ball valve 1 is connected with air for instruments, and the other end is sequentially connected with the bin top dust remover 2 and the biochar storage bin 7. When the device works, air for the device is conveyed into the bin top dust remover 2 through the ball valve 1, negative pressure is formed on the biological carbon storage bin 7 through the bin top dust remover 2, the biological carbon powder is conveyed into the double-helix quantitative feeder 16, and the formed negative pressure is used for preventing accidents caused by the suspension of the carbon powder in the biological carbon storage bin 7.

The top of the biochar storage bin 7 is also provided with an access hole 3 for accessing the biochar storage bin 7.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The production and conveying system for the biochar is characterized by comprising a biochar storage bin (7) with a feeding hole (4) and a discharging hole (27), a biochar production system (38), a feeding system (28) for conveying the biochar powder to the biochar storage bin (7), and a discharging system (30) for outputting the biochar powder in the biochar storage bin (7); biochar production system (38), charge-in system (28), feed inlet (4) link to each other in proper order, discharge gate (27) have connected gradually feed system (29), discharge system (30), feed system (29) with the junction intercommunication of discharge system (30) has air supply system (31).

2. The biochar production conveying system as claimed in claim 1, characterized in that the feeding system (29) comprises a double-screw doser (16), the feeding port of the double-screw doser (16) is communicated with the discharging port (27) through a pipeline, a pneumatic gate valve (14) is arranged on the pipeline, and the discharging port of the double-screw doser (16) is connected with the discharging system (30).

3. The biochar conveying system according to claim 1, wherein the discharging system (30) comprises a pipeline mixer (20), an electric valve (21), an electromagnetic flow meter (22) and a dioxin concentration detector (26) which are connected in sequence, the pipeline mixer (20) is respectively connected with the feeding system (29) and the air supply system (31), and the output end of the dioxin concentration detector (26) is connected with an outlet flue header.

4. The biochar delivery system as claimed in claim 1, wherein the air supply system (31) comprises a fan (17), a safety valve (9) and a butterfly valve (19) which are connected in sequence, the fan (17) is communicated with ambient air, the butterfly valve (19) is communicated with the pipeline mixer (20), and a pressure gauge (18) is further arranged on a pipeline connecting the fan (17) and the safety valve (9).

5. The biochar conveying system according to any one of claims 1-4, characterized in that the biochar production system (38) comprises a carbonization furnace (37), a vibrating screening device (36), an activation tank (34) and a conveying pump (35) which are connected in sequence, and a discharge port of the conveying pump (35) is connected with an inlet of the feeding system (28).

6. The biochar delivery system according to any one of claims 1-4, wherein the feeding system (28) comprises a biochar powder tank (23) and an electric ball valve (24) which are connected with each other, one end of the electric ball valve (24) is connected with air for instruments, the other end of the electric ball valve is connected with the biochar powder tank (23), and the biochar powder tank (23) is connected with the feeding hole (4) through a feeding pipe (25).

7. The biochar delivery system according to claim 6, wherein the biochar storage bin (7) is provided with a high level gauge (5) and a low level gauge (6) on the side from top to bottom.

8. The biochar delivery system according to any one of claims 1 to 4, further comprising an explosion-proof system (33), wherein the explosion-proof system (33) comprises a safety valve (9), a regulating valve (10), a nitrogen protection system (12) and a temperature sensor (8), and the nitrogen protection system (12), the safety valve (9) and the regulating valve (10) are sequentially connected with the biochar storage bin (7).

9. The biochar delivery system according to any one of claims 1 to 4, further comprising a negative pressure system (32), wherein the negative pressure system (32) comprises a ball valve (1) and a top bin deduster (2); one end of the ball valve (1) is connected with air for instruments, and the other end of the ball valve is sequentially connected with the bin top dust remover (2) and the charcoal storage bin (7).