阅读说明：本技术 一种废液处理系统及其处理方法 (Waste liquid treatment system and treatment method thereof ) 是由 温玮 郑顺富 曾巍 于 2020-12-31 设计创作，主要内容包括：本发明公开了一种废液处理系统,包括废液室及若干若干焚烧窑头,所述的废液室内设置有高热值废液池及低热值废液池,并设置有与高热值废液连接的输送泵Ⅰ及与低热值废液池连接的输送泵Ⅱ；输送泵Ⅰ的输出端连接有输送总管Ⅰ,输送总管Ⅰ在每个焚烧窑头处均分出一条输送支管Ⅰ；输送泵Ⅱ的输出端连接有输送总管Ⅱ,输送总管Ⅱ在每个焚烧窑头处均分出一条输送支管Ⅱ。废液投入使用前于需对废液的产废企业进行取样化验,了解主要的废液产生企业的废液特性。废液特性主要包括：热值、硫、氯和闪点。且窑头还设有单独供燃油的管路。(The invention discloses a waste liquid treatment system, which comprises a waste liquid chamber and a plurality of incineration kiln heads, wherein the waste liquid chamber is internally provided with a high-calorific-value waste liquid pool and a low-calorific-value waste liquid pool, and is also provided with a conveying pump I connected with high-calorific-value waste liquid and a conveying pump II connected with the low-calorific-value waste liquid pool; the output end of the delivery pump I is connected with a delivery main pipe I, and the delivery main pipe I is provided with a delivery branch pipe I at each incineration kiln head; the output end of the delivery pump II is connected with a delivery main pipe II, and the delivery main pipe II equally divides a delivery branch pipe II at each incineration kiln head. Before the waste liquid is put into use, a waste enterprise needing to produce the waste liquid carries out sampling and testing, and the characteristics of the waste liquid of the main waste liquid production enterprise are known. The waste liquid characteristics mainly include: heat value, sulfur, chlorine, and flash point. And the kiln head is also provided with a pipeline for independently supplying fuel oil.)

1. The utility model provides a waste liquid treatment system, includes waste liquid room (1) and a plurality of kiln head (2) of burning, characterized by: a high-calorific-value waste liquid pool (3) and a low-calorific-value waste liquid pool (4) are arranged in the waste liquid chamber (1), and a conveying pump I (5) connected with the high-calorific-value waste liquid pool (3) and a conveying pump II (6) connected with the low-calorific-value waste liquid pool (4) are arranged; the output end of the delivery pump I (5) is connected with a delivery main pipe I (7), and the delivery main pipe I (7) is divided into a delivery branch pipe I (8) at each incineration kiln head (2); the output end of the delivery pump II (6) is connected with a delivery main pipe II (9), and the delivery main pipe II (9) equally divides a delivery branch pipe II (10) at each incineration kiln head (2).

2. A waste liquid treatment system according to claim 1, wherein: a high-calorific-value conveying electromagnetic valve (11) is arranged in the middle of the conveying branch pipe I (8), and a high-calorific-value waste liquid spray gun arranged in the kiln head is arranged at the tail end of the conveying branch pipe I (8); a low-heat value conveying electromagnetic valve (12) is arranged in the middle of the conveying branch pipe II (10), and a low-heat value waste liquid spray gun arranged in the kiln head is arranged at the tail end of the conveying branch pipe II (10).

3. A waste liquid treatment system according to claim 2, wherein: a flow meter I (13) is arranged at the position, close to the delivery pump I (5), of the delivery main pipe I (7); and a flow meter II (14) is arranged at the position of the conveying main pipe II (9) close to the conveying pump II (6).

4. A waste liquid treatment system according to claim 3, wherein: an air compression device (15) is arranged in the waste liquid chamber (1), a purging main pipe (16) is arranged at the outlet end of the air compression device (15), and a purging branch pipe I (17) connected to the output end of the conveying pump I (5) and a purging branch pipe II (18) connected to the output end of the conveying pump II (6) are branched at the tail end of the purging main pipe (16); and a purging electromagnetic valve I (19) is arranged in the middle of the purging branch pipe I (17), and a purging electromagnetic valve II (20) is arranged in the middle of the purging branch pipe II (18).

5. The liquid waste treatment system according to claim 4, wherein: the device is characterized by further comprising a controller PLC for control, the conveying pump I (5), the conveying pump II (6), the low-calorific-value conveying electromagnetic valve (12), the high-calorific-value conveying electromagnetic valve (11), the purging electromagnetic valve I (19) and the purging electromagnetic valve II (20) are controlled by the controller PLC in a programming mode, and data detected by the flowmeter I (13) and the flowmeter II (14) are fed back to the controller PLC.

6. The liquid waste treatment system according to claim 5, wherein: the kiln head is internally provided with a centrifugal blower which is programmed and controlled by a controller PLC.

7. The liquid waste treatment system according to claim 6, wherein: a filter (21) and a flow meter (22) are connected between the high-calorific-value waste liquid pool and the delivery pump I (5) and between the low-calorific-value waste liquid pool (4) and the delivery pump II (6);

the controller PLC obtains a current flow rate value through a flow rate meter (22); wherein the current flow rate value is a fluid flow rate value between the filter (21) and the delivery pump;

judging whether the flow rate value between the filter (21) and the delivery pump meets a preset condition or not; and judging whether the filter (21) is blocked or not according to the difference value between the current flow velocity value and the preset flow velocity value.

8. A waste liquid treatment system according to claim 7, wherein: the judging whether the filter (21) is blocked according to the difference value between the current flow rate value and the preset flow rate value comprises the following steps:

and when the difference value is greater than or equal to a first preset threshold value and the duration is greater than or equal to a first preset time, judging that the filter (21) is blocked.

9. A waste liquid treatment system according to claim 8, wherein: when the filter (21) is judged to be blocked, the method for detecting the blockage of the filter (21) further comprises the following steps: -determining the clogging of the filter (21), the determining the clogging of the filter (21) comprising:

when the difference value is greater than or equal to the first preset threshold value and less than or equal to a second preset threshold value, and the duration time is greater than or equal to the first preset time, judging that the filtering is slightly blocked;

when the difference is greater than or equal to the second preset threshold value and less than or equal to a third preset threshold value, and the duration is greater than or equal to a second preset time, determining that the filter (21) is moderately blocked;

when the difference value is greater than or equal to the third preset threshold value and the duration is greater than or equal to a third preset time, judging that the filter (21) is heavily blocked;

the third preset time is greater than or equal to the second preset time, and the second preset time is greater than or equal to the first preset time.

10. A waste liquid treatment system according to claim 9, wherein: the processing method of the processing system comprises the following steps:

presetting the total calorific value of high calorific value waste liquid and low calorific value waste liquid treated every minute in a controller;

before the high-calorific-value waste liquid and the low-calorific-value waste liquid are conveyed, the controller PLC performs heat balance calculation according to the calorific value of the high-calorific-value waste liquid and the calorific value of the low-calorific-value waste liquid to determine the flow of the high-calorific-value waste liquid and the low-calorific-value waste liquid conveyed per minute;

step three: calculating the respective conveying total amount of the high-calorific-value waste liquid and the low-calorific-value waste liquid per minute according to the number of the incineration kiln heads (2) and the conveying flow of the high-calorific-value waste liquid and the low-calorific-value waste liquid per minute;

step four: determining the output power of a conveying pump I (5) and a conveying pump II (6) and the power of a centrifugal blower according to the respective conveying total amount of the high-calorific-value waste liquid and the low-calorific-value waste liquid per minute;

the controller PLC is programmed with a switching function and can switch between conveying only high-calorific-value waste liquid, conveying only low-calorific-value waste liquid or conveying both the high-calorific-value waste liquid and the low-calorific-value waste liquid.

Technical Field

The invention belongs to the technical field of waste liquid, and particularly relates to a waste liquid treatment system and a waste liquid treatment method.

Background

The traditional fuel required by combustion at the kiln head is fuel oil; the traditional method is to treat the high and low calorific value waste liquid through another process. Thereby causing energy waste.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a system which has a simple structure and can treat waste liquid and a treatment method thereof.

In order to achieve the purpose, the invention provides the following technical scheme: a waste liquid treatment system comprises a waste liquid chamber and a plurality of incineration kiln heads, wherein a high-calorific-value waste liquid pool and a low-calorific-value waste liquid pool are arranged in the waste liquid chamber, and a conveying pump I connected with the high-calorific-value waste liquid pool and a conveying pump II connected with the low-calorific-value waste liquid pool are arranged in the waste liquid chamber; the output end of the delivery pump I is connected with a delivery main pipe I, and the delivery main pipe I is provided with a delivery branch pipe I at each incineration kiln head; the output end of the delivery pump II is connected with a delivery main pipe II, and the delivery main pipe II equally divides a delivery branch pipe II at each incineration kiln head. Before the waste liquid is put into use, a waste enterprise needing to produce the waste liquid carries out sampling and testing, and the characteristics of the waste liquid of the main waste liquid production enterprise are known. The waste liquid characteristics mainly include: heat value, sulfur, chlorine, and flash point. And the kiln head is also provided with a pipeline for independently supplying fuel oil.

The invention is further provided with a high calorific value conveying electromagnetic valve arranged in the middle of the conveying branch pipe I, and a high calorific value waste liquid spray gun arranged in the kiln head arranged at the tail end of the conveying branch pipe I; and a low-calorific-value conveying electromagnetic valve is arranged in the middle of the conveying branch pipe II, and a low-calorific-value waste liquid spray gun arranged in the kiln head is arranged at the tail end of the conveying branch pipe II.

The invention is further provided that a flow meter I is arranged at the position of the conveying main pipe I, which is close to the conveying pump I; and a flow meter II is arranged at the position of the conveying main pipe II, which is close to the conveying pump II.

The invention is further provided with an air compression device arranged in the waste liquid chamber, wherein the outlet end of the air compression device is provided with a purging main pipe, and the tail end of the purging main pipe is branched into a purging branch pipe I connected to the output end of the conveying pump I and a purging branch pipe II connected to the output end of the conveying pump II; and a purging electromagnetic valve I is arranged in the middle of the purging branch pipe I, and a purging electromagnetic valve II is arranged in the middle of the purging branch pipe II.

The invention further provides a controller PLC for control, the delivery pump I, the delivery pump II, the low-calorific-value delivery electromagnetic valve, the high-calorific-value delivery electromagnetic valve, the purging electromagnetic valve I and the purging electromagnetic valve II are all controlled by the controller PLC in a programming mode, and data detected by the flowmeter I and the flowmeter II are all fed back to the controller PLC.

The invention is further provided that a centrifugal blower is arranged in the kiln head, and the centrifugal blower is programmed and controlled by a controller PLC.

The invention is further arranged that a filter and a flow rate meter are connected between the high-calorific-value waste liquid pool and the delivery pump I and between the low-calorific-value waste liquid pool and the delivery pump II;

the controller PLC acquires a current flow rate value through the flow rate meter; wherein the current flow rate value is a fluid flow rate value between the filter and the delivery pump;

judging whether the flow rate value between the filter and the delivery pump meets a preset condition or not; and judging whether the filter is blocked or not according to the difference value of the current flow velocity value and the preset flow velocity value.

The present invention is further configured such that said determining whether the filter is clogged, based on a difference between the current flow rate value and a preset flow rate value, comprises:

and judging that the filter is blocked when the difference value is greater than or equal to a first preset threshold value and the duration time is greater than or equal to a first preset time.

The invention is further configured such that, when the filter is judged to be clogged, the filter clogging detection method further includes: judging the blockage condition of the filter, wherein the judging the blockage condition of the filter comprises the following steps:

when the difference value is greater than or equal to the first preset threshold value and less than or equal to a second preset threshold value, and the duration time is greater than or equal to the first preset time, judging that the filtering is slightly blocked;

when the difference value is greater than or equal to the second preset threshold value and less than or equal to a third preset threshold value, and the duration is greater than or equal to a second preset time, determining that the filter is moderately blocked;

when the difference value is greater than or equal to the third preset threshold value and the duration is greater than or equal to a third preset time, judging that the filter is heavily blocked;

the third preset time is greater than or equal to the second preset time, and the second preset time is greater than or equal to the first preset time.

The processing method of the processing system comprises the following steps:

presetting the total calorific value of high calorific value waste liquid and low calorific value waste liquid treated every minute in a controller;

before the high-calorific-value waste liquid and the low-calorific-value waste liquid are conveyed, the controller PLC performs heat balance calculation according to the calorific value of the high-calorific-value waste liquid and the calorific value of the low-calorific-value waste liquid to determine the flow of the high-calorific-value waste liquid and the low-calorific-value waste liquid conveyed per minute;

step three: calculating the respective conveying total amount of the high-calorific-value waste liquid and the low-calorific-value waste liquid per minute according to the number of the incineration kiln heads and the conveying flow of the high-calorific-value waste liquid and the low-calorific-value waste liquid per minute;

step four: determining the output power of the conveying pump I and the conveying pump II and the power of the centrifugal blower according to the respective conveying total amount of the high-calorific-value waste liquid and the low-calorific-value waste liquid per minute;

the controller PLC is programmed with a switching function and can switch between conveying only high-calorific-value waste liquid, conveying only low-calorific-value waste liquid or conveying both the high-calorific-value waste liquid and the low-calorific-value waste liquid.

Compared with the prior art, the invention has the beneficial effects that:

1. through the setting of the waste liquid treatment system, the waste liquid is used as fuel to be combusted, and resources are utilized to dispose the waste liquid with high and low heat values.

2. The filter can filter the waste liquid entering the kiln head; the conditions of large particle dust and the like during combustion are avoided; and the flow velocity of the waste liquid passing through the filter and the delivery pump is detected by arranging the flow velocity meter, and whether the filter is blocked or not is judged according to the comparison between the flow velocity and the preset flow velocity.

3. The treatment method is switched among conveying only the high-calorific-value waste liquid, conveying only the low-calorific-value waste liquid or conveying both the high-calorific-value waste liquid and the low-calorific-value waste liquid, so that the waste liquid treatment is diversified.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a flow chart of a filter clogging detection method according to the present invention;

reference numbers in the drawings and corresponding part names: 1-a waste liquid chamber, 2-an incineration kiln head, 3-a high-calorific-value waste liquid pool, 4-a low-calorific-value waste liquid pool, 5-a delivery pump I, 6-a delivery pump II, 7-a delivery header pipe I, 8-a delivery branch pipe I, 9-a delivery header pipe II, 10-a delivery branch pipe II, 11-a high-calorific-value delivery electromagnetic valve, 12-a low-calorific-value delivery electromagnetic valve, 13-a flowmeter I, 14-a flowmeter II, 15-an air compression device, 16-a purging header pipe, 17-a purging branch pipe I, 18-a purging branch pipe II, 19-a purging electromagnetic valve I, 20-a purging electromagnetic valve II, 21-a filter and 22-a flow rate meter.

Detailed Description

An embodiment of the present invention is further explained with reference to fig. 1 to 2.

A waste liquid treatment system comprises a waste liquid chamber 1 and a plurality of incineration kiln heads 2, wherein a high-calorific-value waste liquid pool 3 and a low-calorific-value waste liquid pool 4 are arranged in the waste liquid chamber 1, and a conveying pump I5 connected with the high-calorific-value waste liquid pool and a conveying pump II 6 connected with the low-calorific-value waste liquid pool 4 are arranged; the output end of the delivery pump I5 is connected with a delivery main pipe I7, and the delivery main pipe I7 is provided with a delivery branch pipe I8 at each incineration kiln head 2; the output end of the conveying pump II 6 is connected with a conveying main pipe II 9, and the conveying main pipe II 9 equally divides a conveying branch pipe II 10 at each incineration kiln head 2. Before the waste liquid is put into use, a waste enterprise needing to produce the waste liquid carries out sampling and testing, and the characteristics of the waste liquid of the main waste liquid production enterprise are known. The waste liquid characteristics mainly include: heat value, sulfur, chlorine, and flash point. And the kiln head is also provided with a pipeline for independently supplying fuel oil.

By adopting the technical scheme, the waste liquid treatment system is arranged, the waste liquid is used as fuel to be combusted, and resources are utilized to treat the waste liquid with high and low calorific values.

The invention is further arranged that a high calorific value conveying electromagnetic valve 11 is arranged in the middle of the conveying branch pipe I8, and a high calorific value waste liquid spray gun arranged in a kiln head is arranged at the tail end of the conveying branch pipe I8; a low-heat value conveying electromagnetic valve 12 is arranged in the middle of the conveying branch pipe II 10, and a low-heat value waste liquid spray gun arranged in the kiln head is arranged at the tail end of the conveying branch pipe II 10.

The invention is further provided that a flow meter I13 is arranged at the position of the conveying main pipe I7 close to the conveying pump I5; a flow meter II 14 is arranged on the conveying main pipe II 9 near the conveying pump II 6.

By adopting the technical scheme, a flowmeter I13 is arranged at the position, close to the delivery pump I5, of the delivery main pipe I; and a flow meter II 14 is arranged at the position, close to the conveying pump II 6, of the conveying main pipe II 9, so that the conveying flow is monitored, and whether the operation of the system is normal or not is judged conveniently.

The invention is further provided with an air compression device 15 arranged in the waste liquid chamber 1, wherein the outlet end of the air compression device 15 is provided with a purging main pipe 16, and a purging branch pipe I17 connected to the output end of the conveying pump I5 and a purging branch pipe II 18 connected to the output end of the conveying pump II 6 are branched at the tail end of the purging main pipe 16; and a purging electromagnetic valve I19 is arranged in the middle of the purging branch pipe I17, and a purging electromagnetic valve II 20 is arranged in the middle of the purging branch pipe II 18.

By adopting the technical scheme, the air compression device 15 is arranged in the waste liquid chamber 1, the outlet end of the air compression device 15 is provided with the purging main pipe 16, and the tail end of the purging main pipe 16 is branched into the purging branch pipe I17 connected to the output end of the conveying pump I5 and the purging branch pipe II 18 connected to the output end of the conveying pump II 6; and a purging electromagnetic valve I19 is arranged in the middle of the purging branch pipe I17, and a purging electromagnetic valve II 20 is arranged in the middle of the purging branch pipe II 18, so that purging of the pipeline can be realized, and maintenance of the pipeline in the later period is facilitated.

The invention further comprises a controller PLC for control, wherein the conveying pump I5, the conveying pump II 6, the low-calorific-value conveying electromagnetic valve 12, the high-calorific-value conveying electromagnetic valve 11, the purging electromagnetic valve I19 and the purging electromagnetic valve II 20 are controlled by the controller PLC in a programming mode, and data detected by the flowmeter I13 and the flowmeter II 14 are fed back to the controller PLC.

By adopting the technical scheme, the conveying pump I5, the conveying pump II 6, the low-calorific-value conveying electromagnetic valve 12, the high-calorific-value conveying electromagnetic valve 11, the purging electromagnetic valve I19 and the purging electromagnetic valve II 20 are controlled by the PLC programming, and data detected by the flowmeter I13 and the flowmeter II 14 are fed back to the PLC programming, so that the automatic control can be facilitated, and the performance of the system is improved.

The invention is further provided that a centrifugal blower is arranged in the kiln head, and the centrifugal blower is programmed and controlled by a controller PLC.

By adopting the technical scheme, the centrifugal blower is arranged in the kiln head and is programmed and controlled by the controller PLC, so that the air-fuel ratio can be conveniently controlled.

The invention is further arranged that a filter 21 and a flow meter 22 are connected between the high-calorific-value waste liquid pool and the delivery pump I5 and between the low-calorific-value waste liquid pool 4 and the delivery pump II 6;

the controller PLC obtains the current flow rate value through the flow rate meter 22; wherein the current flow rate value is a fluid flow rate value between the filter 21 and the delivery pump;

judging whether the flow rate value between the filter 21 and the delivery pump meets a preset condition; and judging whether the filter 21 is blocked or not according to the difference value between the current flow velocity value and the preset flow velocity value.

The present invention is further configured such that said determining whether the filter 21 is clogged, based on the difference between the current flow rate and a preset flow rate, comprises:

and when the difference value is greater than or equal to a first preset threshold value and the duration is greater than or equal to a first preset time, judging that the filter 21 is blocked.

The present invention is further configured such that, when it is determined that the filter 21 is clogged, the method for detecting clogging of the filter 21 further includes: judging the blockage condition of the filter 21, wherein the judging the blockage condition of the filter 21 comprises the following steps:

when the difference value is greater than or equal to the first preset threshold value and less than or equal to a second preset threshold value, and the duration time is greater than or equal to the first preset time, judging that the filtering is slightly blocked;

when the difference is greater than or equal to the second preset threshold and less than or equal to a third preset threshold, and the duration is greater than or equal to a second preset time, it is determined that the filter 21 is moderately clogged;

when the difference is greater than or equal to the third preset threshold and the duration is greater than or equal to a third preset time, determining that the filter 21 is heavily blocked;

the third preset time is greater than or equal to the second preset time, and the second preset time is greater than or equal to the first preset time. Wherein the delivery pump is preset at different delivery powers

By adopting the technical scheme, the filter 21 can be arranged to filter the waste liquid entering the kiln head; the conditions of large particle dust and the like during combustion are avoided; and the flow rate of the waste liquid passing between the filter 21 and the delivery pump is detected by arranging the flow rate meter 22, and whether the filter 21 is blocked or not is judged according to the comparison between the flow rate and the preset flow rate.

The processing method of the processing system comprises the following steps:

presetting the total calorific value of high calorific value waste liquid and low calorific value waste liquid treated every minute in a controller;

before the high-calorific-value waste liquid and the low-calorific-value waste liquid are conveyed, the controller PLC performs heat balance calculation according to the calorific value of the high-calorific-value waste liquid and the calorific value of the low-calorific-value waste liquid to determine the flow of the high-calorific-value waste liquid and the low-calorific-value waste liquid conveyed per minute;

step three: calculating the respective conveying total amount of the high-calorific-value waste liquid and the low-calorific-value waste liquid per minute according to the number of the incineration kiln heads 2 and the conveying flow of the high-calorific-value waste liquid and the low-calorific-value waste liquid per minute;

step four: determining the output power of the conveying pump I5 and the conveying pump II 6 and the power of the centrifugal blower according to the respective conveying total amount of the high-heat-value waste liquid and the low-heat-value waste liquid per minute;

the controller PLC is programmed with a switching function and can switch between conveying only high-calorific-value waste liquid, conveying only low-calorific-value waste liquid or conveying both the high-calorific-value waste liquid and the low-calorific-value waste liquid.

By adopting the technical scheme, the treatment method for switching the conveying of the high-calorific-value waste liquid, the conveying of the low-calorific-value waste liquid or the conveying of the high-calorific-value waste liquid and the conveying of the low-calorific-value waste liquid simultaneously is arranged, so that the waste liquid treatment diversification is realized, and the waste liquid treatment effect is ensured.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.