IC + anaerobic reactor with automatic flushing and deslagging functions

Abstract

According to the IC + anaerobic reactor capable of automatically flushing and deslagging, the water inlet branch pipes and the water distributors arranged on the water inlet branch pipes are regularly cleaned by utilizing circulating effluent returned to the reactor body, and whether blockage exists or not can be quickly judged by monitoring the flushing water flow in real time in the flushing operation; and the dredging process is automatically started when blockage is found. Meanwhile, the IC + anaerobic reactor can also treat calcified sludge generated in the dredging process in time, sludge with heavy calcification is automatically discharged, sludge with light calcification is re-guided back to the reactor body to be continuously utilized, and maximum utilization of resources is achieved. By means of the automatic operation, the burden of manual operation is greatly relieved, and the precision and efficiency of the wastewater treatment process are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to wastewater treatment technical field, concretely relates to an IC + Anaerobic reactor. BACKGROUND

[0002] In the papermaking wastewater treatment industry, the high calcium ion concentration in wastewater causes the anaerobic granular sludge in the anaerobic reactor to calcify and form deposits at the bottom of the reactor. These calcified sludge, due to its high hardness characteristics, is extremely prone to causing abrasion of normal sludge during continuous collisions with normal sludge, thereby causing sludge loss. This makes it difficult for the amount of sludge in the anaerobic reactor to increase, and even a large amount of reduction may occur.

[0003] With the passage of time, the accumulation of calcified sludge can also block the holes or distribution pipes of the water distributor, making it impossible for the water distributor to effectively distribute wastewater evenly to all areas of the reactor, resulting in excess water flow in some areas and insufficient water flow in other areas, and in severe cases, the entire water distribution system may be paralyzed. In addition, the deposited calcified sludge increases the resistance of the water flow, forcing the water distributor to require more power to maintain normal distribution of the water flow, which not only increases energy consumption but also increases operating costs.

[0004] If these calcified sludge is removed by manual means, i.e., by performing a deslagging operation, not only is the workload large, but the accuracy and efficiency of the deslagging are relatively low, which poses a challenge to the stable operation of the wastewater treatment system. SUMMARY

[0005] In view of the problems of calcified sludge blocking the water distributor and the large workload of manual deslagging operation in the existing IC + reactor, the utility model provides an IC + anaerobic reactor that uses the effluent circulating into the reactor body to periodically flush the influent branch pipe and the water distributor arranged thereon. According to the water flow of the flushing, whether there is a blockage can be identified in time, and once a blockage occurs, a dredging program will be automatically triggered to clean the blocked position in time, ensuring smooth water flow. In addition, for the calcified sludge generated during dredging, the IC + anaerobic reactor can also be timely treated, and the calcified sludge cleaned down can also be timely treated. For sludge with a high degree of calcification, it is automatically discharged, while for sludge with a light degree of calcification, it is guided to return to the reactor body to continue participating in the anaerobic purification process, realizing the maximum utilization of sludge resources. This series of automatic operations greatly improves the overall operating efficiency.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] An IC with automatic washing and slagging + The anaerobic reactor further comprises: a water inlet main pipe, a water inlet control valve, a water outlet pipe and a water outlet control valve, the water inlet main pipe is communicated with the water inlet end of the water inlet branch pipe, the water inlet control valve is arranged on the water inlet main pipe; the water outlet pipe is communicated with the water outlet of the reactor body, the water outlet control valve is arranged on the water outlet pipe; the water inlet control valve and the water outlet control valve are controlled and connected with the control system, when the washing process and the sludge discharging process are started, the control system controls the water inlet control valve and the water outlet control valve to be closed.

[0008] In some embodiments, the IC + The anaerobic reactor further comprises: a water inlet main pipe, a water inlet control valve, a water outlet pipe and a water outlet control valve, the water inlet main pipe is communicated with the water inlet end of the water inlet branch pipe, the water inlet control valve is arranged on the water inlet main pipe; the water outlet pipe is communicated with the water outlet of the reactor body, the water outlet control valve is arranged on the water outlet pipe; the water inlet control valve and the water outlet control valve are controlled and connected with the control system, when the washing process and the sludge discharging process are started, the control system controls the water inlet control valve and the water outlet control valve to be closed.

[0009] In some embodiments, the IC + The anaerobic reactor further comprises: a water inlet main pipe, a water inlet control valve, a water outlet pipe and a water outlet control valve, the water inlet main pipe is communicated with the water inlet end of the water inlet branch pipe, the water inlet control valve is arranged on the water inlet main pipe; the water outlet pipe is communicated with the water outlet of the reactor body, the water outlet control valve is arranged on the water outlet pipe; the water inlet control valve and the water outlet control valve are controlled and connected with the control system, when the washing process and the sludge discharging process are started, the control system controls the water inlet control valve and the water outlet control valve to be closed.

[0010] In some embodiments, the IC +The anaerobic reactor further comprises a sludge tank, an overflow pipe and a sludge liquid level meter, the input end of the sludge tank is connected with the top of the deslagging device through the overflow pipe, the output end of the sludge tank is communicated with the sludge backflow pipe, and the sludge liquid level meter is arranged on the sludge tank and is in control connection with the control system to detect the sludge liquid level in the sludge tank.

[0011] In some embodiments, the IC + The anaerobic reactor further comprises a clean water flushing pipe communicated with the deslagging device for conveying clean water to flush the sludge with low or no calcification to the top of the deslagging device, and the clean water flushing pipe is provided with a clean water pipe control valve and a clean water pipe manual valve, and the clean water pipe control valve is in control connection with the control system.

[0012] In some embodiments, the IC + The anaerobic reactor further comprises a sludge discharge pipe, a sludge discharge control valve and a sludge discharge manual valve, the sludge discharge pipe is communicated with the sludge backflow pipe, the sludge discharge control valve and the sludge discharge manual valve are arranged on the sludge discharge pipe, the sludge discharge control valve is in control connection with the control system, and / or the IC + The anaerobic reactor further comprises a deslagging area located at the outlet position of the deslagging pipe.

[0013] In some embodiments, the IC + The anaerobic reactor further comprises a standpipe and a standpipe liquid level meter, the water inlet end of the standpipe is communicated with the water outlet of the reactor body, and the two water outlet ends of the standpipe are respectively communicated with the water outlet circulation pipe and the water outlet pipe; the standpipe liquid level meter is arranged on the standpipe to measure the liquid level in the standpipe; and the control system is in control connection with the standpipe liquid level meter to control the operation state of the anaerobic circulating pump according to the liquid level value.

[0014] In some embodiments, the water distributor has water distribution holes, and the openings of the water distribution holes are directed to the bottom of the reactor body.

[0015] In some embodiments, a branch pipe water inlet manual valve is arranged on each of the water inlet branch pipes outside the reactor body; and / or a circulating water flow meter and a circulating water manual valve are arranged on the water outlet circulation pipe, and the circulating water flow meter is in control connection with the control system; and / or a desludging pipe manual valve is arranged on the desludging pipe.

[0016] In some embodiments, a water inlet pump, a water inlet flow meter and a water inlet manual valve are arranged on the water inlet main pipe, and the water inlet pump and the water inlet flow meter are in control connection with the control system; and / or a water outlet manual valve is arranged on the water outlet pipe.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] 1、 the utility model provides an IC + Anaerobic reactor utilizes the circulating effluent to flush the water distributor on the influent branch pipe, so as to maintain the fluency of operation. By accurately monitoring the flushing water flow value, whether there is a blockage phenomenon can be identified in time. Once the blockage sign is found, the system will automatically trigger the dredging program to clean in time. The timely flushing and dredging treatment significantly reduces the equipment damage and downtime caused by blockage, ensuring the continuous and stable working state of the reactor. Regular and effective flushing operation keeps the influent branch pipe and water distributor unobstructed, thereby ensuring the uniform mixing of wastewater and sludge and further improving the efficiency and quality of the treatment process.

[0019] 2、 the utility model provides an IC + Anaerobic reactor is also equipped with an efficient sludge treatment unit, which is specially designed for instant treatment of calcified sludge generated during dredging. In this unit, the sludge flushed down is first finely classified, and the completely calcified sludge is separated out and discharged from the system in time. For the sludge that is not completely calcified or has a lighter degree of calcification, it is reintroduced into the reactor body through the sludge return pipe to continue to play a role in the anaerobic purification process. Such treatment design not only significantly reduces the sludge loss, but also realizes efficient recycling of sludge resources. Regular discharge of sludge is also beneficial to the growth of sludge, enhancing the sustainability of the reactor.

[0020] 3、 the utility model provides an IC + Anaerobic reactor has a highly automated operation feature, with flushing and dredging programs preset in the control system, so it can operate autonomously without frequent manual intervention. The intelligent design ensures that the entire process from flushing operation to sludge treatment can be automatically completed. This degree of automation not only greatly reduces the burden of manual operation, but also improves the accuracy and efficiency of the operation. Whether it is the classification and discharge of calcified sludge flushed down or the return utilization of uncalcified sludge, each link can be automatically executed under the accurate control of the system, realizing an efficient, stable and safe wastewater treatment process. BRIEF DESCRIPTION OF DRAWINGS

[0021] The utility model is further described below in combination with the drawings and examples.

[0022] Fig. 1 The utility model provides an IC + Structure diagram of anaerobic reactor;

[0023] Fig. 2 The utility model provides an IC + Top view of anaerobic reactor;

[0024] Fig. 3 The utility model provides a water distributor's structure schematic view.

[0025] The meaning of the mark symbol in the drawing is as follows:

[0026] 1 - reactor body;

[0027] 2 - water inlet main pipe; 21 - water inlet control valve; 22 - water inlet manual valve; 23 - water inlet flow meter; 24 - water inlet pump; 25 - water inlet mother pipe;

[0028] 3 - water inlet branch pipe; 301 ~ 305 - first water inlet branch pipe ~ fifth water inlet branch pipe;

[0029] 31 - branch pipe water inlet control valve; 311 ~ 315 - first branch pipe water inlet control valve ~ fifth branch pipe water inlet control valve;

[0030] 4 - water distributor;

[0031] 5 - water outlet circulation pipe; 51 - circulation water control valve; 52 - circulation water manual valve; 53 - anaerobic circulation pump; 54 - circulation water flow meter;

[0032] 6 - water outlet pipe; 61 - water outlet control valve; 62 - water outlet manual valve; 63 - stand pipe; 64 - stand pipe liquid level meter;

[0033] 7 - sludge discharge pipe; 71 - sludge discharge pipe control valve;

[0034] 8 - deslagging device;

[0035] 9 - deslagging pipe; 91 - deslagging control valve; 92 - deslagging manual valve;

[0036] 10 - residue stacking area;

[0037] 11 - clean water flushing pipe; 111 - clean water pipe control valve; 112 - clean water pipe manual valve;

[0038] 12 - sludge backflow pipe; 121 - backflow control valve; 122 - backflow manual valve; 123 - sludge pump;

[0039] 13 - sludge tank; 131 - overflow pipe; 132 - sludge liquid level meter;

[0040] 14 - sludge discharge pipe; 141 - sludge discharge control valve; 142 - sludge discharge manual valve. DETAILED DESCRIPTION

[0041] As Fig. 1 and 2 The utility model provides a kind of IC +The utility model provides an anaerobic reactor, which comprises a reactor body, a plurality of water inlet branches, a plurality of water distributors, a water outlet circulation pipe, a sludge discharge pipe and a control system.

[0042] The two ends of each water inlet branch extend out of the reactor body, and each water inlet branch is provided with a branch water inlet control valve.

[0043] The water distributors are arranged on the water inlet branches in the reactor body, and the number of water distributors on each water inlet branch is determined according to the situation.

[0044] The two ends of the water outlet circulation pipe are respectively connected with a water outlet of the reactor body and the water inlet branches, and the water outlet circulation pipe is provided with an anaerobic circulation pump and a circulation water control valve.

[0045] The sludge discharge pipe is connected with a sludge discharge port at the bottom of the reactor body to discharge the calcified sludge flushed down, and the sludge discharge pipe is provided with a sludge discharge pipe control valve.

[0046] The control system is connected with the anaerobic circulation pump, the circulation water control valve, the sludge discharge pipe control valve and each branch water inlet control valve, respectively, and is used for controlling the water flow in the water outlet circulation pipe to flush each water inlet branch and the water distributor, and controlling the opening and closing of the sludge discharge pipe control valve according to the water flow value to discharge the calcified sludge.

[0047] The IC + The anaerobic reactor flushes the water inlet branches and the water distributors arranged thereon by using external circulation water, and the flushing is controlled by the control system, which is provided with a flushing program and a dredging program. When the flushing program is started, the water inlet and the water outlet of the reactor body are stopped, the anaerobic circulation pump, the circulation water control valve and each branch water inlet control valve are opened (preferably, the single water inlet branch is flushed separately), the flushing time is T1 each time, the circulation water flow value is recorded each time, if the difference between the water flow value of the next time and the water flow value of the last time is less than a set value, it is determined that the water distributor and the water inlet branch are not blocked; otherwise, it is determined that the water distributor and the water inlet branch are blocked, and the dredging program is executed, the IC + The water inlet and the water outlet of the anaerobic reactor are executed by the first dredging program, the branch water inlet control valve of the water inlet branch not blocked is closed, the branch water inlet control valve of the water inlet branch blocked is opened, and the rotation speed of the anaerobic circulation pump is opened to the maximum, the flushing time is T2 each time, T2>T1, and the circulation water flow value is monitored in real time, if the difference between the water flow value of the next time and the water flow value of the last time increases to the set value, it is indicated that the water inlet branch and the water distributor are dredged, and then the dredging process is stopped, and the IC +If the anaerobic reactor returns to normal operation, the second dredging program is executed, the control system opens the sludge discharge control valve, the rotational speed of the anaerobic circulating pump is still opened to the maximum, the effluent of the reactor body flows into the water inlet branch pipe and the water distributor thereon, and the calcified sludge is flushed down and sent into the sludge discharge pipe with water for subsequent treatment. The second dredging program is continuously executed, and the flow value of the circulating water is monitored in real time during the execution of the second dredging program. When the difference value of the flushing water flow value increases to the set value, it is indicated that the blocked water inlet branch pipe and the water distributor have been dredged. If the running time of the second dredging program reaches the upper limit, and the difference value of the flushing water flow value has not returned to the set value, a blockage alarm is sent out to remind the operator to handle it. If the liquid level drops to the stop running of the circulating pump during the flushing process, the water inlet is automatically opened to supplement, and after the supplement is completed, the dredging program is continuously executed.

[0048] As shown in Fig. 2 The utility model discloses a total of 5 water inlet branch pipes, and each water inlet branch pipe is equipped with a branch pipe water inlet control valve, which are respectively a first branch pipe water inlet control valve 311 to a fifth branch pipe water inlet control valve 315. In addition, the sludge discharge pipe is also divided into 5 branches, and the 5 sludge discharge pipes are finally collected into a main sludge discharge pipe to discharge the calcified sludge in the water inlet branch pipe.

[0049] Preferably, the water distributor has a water distribution hole, and the opening of the water distribution hole faces the bottom of the reactor body, as shown in Fig. 3 Such a layout can efficiently discharge the blocked calcified sludge.

[0050] Further, each water inlet branch pipe outside the reactor body is provided with a branch pipe water inlet manual valve, and the sludge discharge pipe is provided with a sludge discharge pipe manual valve. The water outlet circulating pipe is provided with a circulating water flow meter and a circulating water manual valve, and the circulating water flow meter is connected with the control system in control. The control system controls the running state (opening and closing, rotational speed, etc.) of the anaerobic circulating pump according to the circulating water flow value, and further controls the flow of the circulating water, that is, the flushing water flow value.

[0051] The branch pipe water inlet manual valve, the sludge discharge pipe manual valve and the circulating water manual valve are mainly used for rapid cutting-off in emergency situations. When the control valves automatically controlled by the control system fail to work normally, the operators can operate these manual valves to rapidly cut off the fluid flow to ensure safety. Or, these manual valves can be operated when the equipment is under emergency shutdown or maintenance.

[0052] In some embodiments, the IC + The anaerobic reactor further comprises a water inlet main pipe, a water inlet control valve, a water outlet pipe and a water outlet control valve, wherein the water inlet main pipe is communicated with the water inlet end of the water inlet branch pipe, the water inlet control valve is arranged on the water inlet main pipe, the water outlet pipe is communicated with the water outlet port at the top end of the reactor body, and the water outlet control valve is arranged on the water outlet pipe.

[0053] The water inlet control valve and the water outlet control valve are connected with the control system, and the control system controls the water inlet control valve and the water outlet control valve to be closed when the flushing process and the sludge discharge process (including the second dredging process) are started.

[0054] Preferably, the water inlet main pipe is provided with a water inlet pump, a water inlet flow meter and a water inlet manual valve, the water inlet pump and the water inlet flow meter are connected with the control system, the control system automatically controls the operation state of the water inlet pump and the water inlet control valve according to the water inlet flow value, and then controls the flow of the water inlet. Preferably, PID interlocking control is adopted.

[0055] The water outlet pipe is provided with a water outlet manual valve, the water outlet manual valve and the water inlet manual valve have the same function as other manual valves, mainly play a role in the case of control valve failure, and cut off the fluid by manually operating the valves to ensure safety.

[0056] Further, in the embodiment, the IC + The anaerobic reactor is further provided with a water inlet main pipe, the water inlet main pipe collects the water inlet main pipe, the water inlet branch pipes and the water outlet circulation pipe together, when the water inlet input by the water inlet main pipe has a high content of pollutants, the water body in the water outlet circulation pipe can be used to dilute the water inlet, and the impact of the water outlet with high content of pollutants on the reactor is reduced.

[0057] The IC+ anaerobic reactor is further provided with a water inlet main pipe, the water inlet main pipe collects the water inlet main pipe, the water inlet branch pipes and the water outlet circulation pipe together. When the pollutant concentration input by the water inlet main pipe is high, the water body in the water outlet circulation pipe can be used to dilute the water inlet, and then input into the reactor body by the water inlet branch pipe, so as to reduce the impact of high-concentration pollutants on the reactor, balance the water inlet quality and ensure the stability of the treatment process.

[0058] In the embodiment, the IC + The anaerobic reactor further comprises a standpipe and a standpipe liquid level meter, the water inlet end of the standpipe is communicated with the water outlet of the reactor body, and the two water outlet ends of the standpipe are communicated with the water outlet circulation pipe and the water outlet pipe respectively. The standpipe liquid level meter is arranged on the standpipe and is used to measure the liquid level in the standpipe.

[0059] The arrangement of the standpipe can realize the shunt treatment of the water outlet, part of the water outlet reenters the reactor body through the water outlet circulation pipe and continues to participate in the process, and the other part of the water outlet is discharged through the water outlet pipe and enters the next step of treatment.

[0060] The standpipe liquid level meter is connected with the control system, and the working state of the anaerobic circulating pump, including start and stop and rotating speed, is intelligently regulated and controlled according to the real-time liquid level data provided by the standpipe liquid level meter. For example, when the reactor body stops the water inlet operation, the control system will automatically close the water outlet control valve and synchronously close the branch pipe water inlet control valve on each water inlet branch pipe, so as to maintain the stability of the system. If it is necessary to resume operation, the water inlet pump is started, the standpipe liquid level meter continuously monitors the change of the water level in the standpipe, and once the liquid level reaches the preset highest threshold of the standpipe liquid level meter, the anaerobic circulating pump is automatically started. This control mechanism effectively prevents the water in the standpipe from being exhausted when the reactor liquid level has not reached the height of the water outlet pipe, avoids the idling phenomenon of the anaerobic circulating pump, realizes the protection of the equipment, and greatly reduces the burden of manual operation, thereby improving the intelligent management level of the system.

[0061] In some embodiments, the IC + The anaerobic reactor also provides a sludge treatment unit, which includes a deslagging device, a deslagging pipe and a sludge backflow pipe, and specifically:

[0062] The deslagging device is communicated with the sludge discharge pipe, and the sludge output from the sludge discharge pipe during the second dredging process is sent into the deslagging device for treatment. The heavier calcified sludge in the discharged sludge is deposited at the bottom of the deslagging device and is sent into the deslagging pipe through the deslagging port at the bottom of the deslagging device.

[0063] The two ends of the sludge backflow pipe are respectively communicated with the top of the deslagging device and the sludge backflow port of the reactor body. The uncalcified or lowly calcified sludge has light quality and floats to the top of the deslagging device and is introduced back to the reactor body through the sludge backflow pipe to continue to participate in the wastewater purification process.

[0064] Further, the deslagging pipe is provided with a deslagging control valve and a deslagging manual valve, and the sludge backflow pipe is provided with a backflow control valve, a backflow manual valve and a sludge pump. The deslagging control valve, the backflow control valve and the sludge pump are connected with the control system for control, so as to ensure the automatic operation of the deslagging and sludge backflow.

[0065] Further, the above-mentioned sludge treatment unit further includes a sludge tank, an overflow pipe and a sludge liquid level meter, and specifically:

[0066] The input end of the sludge tank is connected with the top of the deslagging device through the overflow pipe, and the output end of the sludge tank is communicated with the sludge backflow pipe. The sludge at the top of the deslagging device is first stored in the sludge tank through the overflow pipe, and the output end of the sludge tank is connected with the sludge backflow pipe, so that part of the sludge can be introduced back to the reactor body in time according to the treatment requirement.

[0067] The sludge liquid level meter is arranged on the sludge tank and connected with the control system for control, so as to detect the sludge liquid level in the sludge tank and facilitate the operator to clearly know the sludge storage state.

[0068] Furthermore, the aforementioned sludge treatment unit also includes a clean water flushing pipe, which is connected to the sludge discharge device. Its main function is to transport clean water to flush the sludge that is not fully calcified or has a low degree of calcification to the top of the sludge discharge device for subsequent treatment and recycling.

[0069] The clean water rinsing pipe is equipped with a clean water pipe control valve and a clean water pipe manual valve. The clean water pipe control valve is connected to the control system and the start and stop of the clean water pipe control valve are controlled by a set program, thereby controlling the clean water rinsing process.

[0070] Furthermore, the aforementioned sludge treatment unit also includes: a sludge discharge pipe, a sludge discharge control valve, and a sludge discharge manual valve. The sludge discharge pipe is connected to the sludge return pipe. Both the sludge discharge control valve and the sludge discharge manual valve are installed on the sludge discharge pipe. The sludge discharge control valve is connected to the control system. Operators can control the return control valve and the sludge discharge control valve to switch between sludge discharge and return, after comprehensively considering factors such as the reactor's operating status, the properties of the sludge, and the treatment effect, to ensure IC + Stable operation and high-efficiency processing capacity of anaerobic reactors.

[0071] Furthermore, the aforementioned sludge treatment unit also includes a sludge storage area located at the outlet of the sludge discharge pipe, which is specifically designed for collecting and temporarily storing the discharged solid waste.

[0072] It should be noted that this sludge treatment unit can also be used in IC... + The anaerobic reactor operates during conventional wastewater treatment, that is, in IC... + After the anaerobic reactor has been running for a period of time, the sludge inside the reactor body is discharged into the sludge discharge device. At this time, the fully calcified sludge will naturally settle to the bottom of the sludge discharge device and be sent to the sludge discharge area through the sludge discharge pipe. Clean water is then supplied through the clean water flushing pipe to flush the sludge that is not fully calcified or has a low degree of calcification to the top of the sludge discharge device, and then it is returned to the reactor body through the sludge return pipe to continue participating in the wastewater treatment process, thereby achieving efficient recycling of sludge resources.

[0073] In this embodiment, the manual valves for sludge discharge, return flow, clear water pipe, and sludge discharge in the sludge treatment unit function identically to the manual valves mentioned earlier, all used for manual intervention at critical control points, and will not be repeated here. All of the above manual valves are open unless otherwise specified, and are generally closed during maintenance.

[0074] The following is combined with Figs. 1-3 The above content provides a detailed explanation of this IC. + The specific operation process of an anaerobic reactor:

[0075] IC +The normal operation process of the anaerobic reactor: the high-calcium wastewater is transported into the reactor body by the water inlet main pipe and the water inlet pump, and is uniformly distributed in the reactor by the water inlet branch pipe and the water distributor, ensuring the uniformity of the mixture of the sludge and the high-calcium wastewater.

[0076] The wastewater is purified by the anaerobic treatment module and the gas-liquid separator in the reactor body, and the effluent, sludge and biogas are effectively separated. The purified effluent first flows into the standpipe, part of which flows to the next treatment unit through the effluent pipe, and the other part is transported to the water inlet main pipe through the effluent circulation pipe, mixed with new water at the water inlet main pipe, and then enters the reactor body again for further anaerobic purification.

[0077] At the same time, the biogas produced in the anaerobic process of the reactor body is separated by the gas-liquid separator and guided to the biogas treatment unit for further utilization. The separated sludge naturally falls back to the sludge bed and participates in the next round of anaerobic digestion process, realizing recycling of its treatment efficiency.

[0078] In the IC + The water inlet branch pipe and the water distributor thereon are subjected to a flushing operation after the operation of the anaerobic reactor:

[0079] The first water inlet branch pipe is flushed first, the water inlet control valve on the water inlet main pipe and the water outlet control valve on the water outlet pipe are automatically closed, the frequency of the anaerobic circulation pump is adjusted to the maximum, and the water inlet control valves on the other four water inlet branch pipes (the second branch pipe water inlet control valve 312 to the fifth branch pipe water inlet control valve 315) are closed, the first water inlet branch pipe is flushed for 5 minutes by using the circulating effluent, and the flushing water flow is recorded in real time by the circulating water flow meter and transmitted to the control system. After the flushing of the first water inlet branch pipe is completed, the remaining water inlet branch pipes are sequentially flushed, and after the flushing is completed, the control system controls the control valves to return to the normal operation state.

[0080] The flushing operation is performed once before the operation of the IC anaerobic reactor and serves as a reference basis for data comparison. Assuming that the flow values of one of the water inlet branch pipes in the first flushing are A1, A2,..., A5, and the subsequent values are B1, B2,..., B5. If A1-B1>0.03*A1, the water distributor on the water inlet branch pipe is blocked and needs to be dredged, otherwise it indicates that the water distributor is unobstructed and does not need to be dredged.

[0081] The above dredging operation includes a first dredging procedure and a second dredging procedure:

[0082] (1)First dredging procedure: close the water inlet control valve and the water outlet control valve, open the frequency of the anaerobic circulating pump to the maximum, close the branch water inlet control valve of the water inlet branch pipe where no blockage occurs, continuously flush the water inlet branch pipe where blockage occurs for 30 minutes, continuously monitor the circulating flow value, if the flow value continuously increases to A1-B1<0.03*A1 during the flushing process, it indicates that the water distributor on the water inlet branch pipe has been dredged, and then the IC anaerobic reactor can be restored to the original operating state. If it is still not dredged, the second dredging procedure is performed.

[0083] (2) Second dredging procedure:

[0084] Close the water inlet control valve and the water outlet control valve, open the anaerobic circulating pump and the sludge discharge control valve, the mixed liquid with calcified sludge or impurities is continuously discharged into the slag discharger through the sludge discharge pipe, the second dredging procedure is operated until the circulating flow value increases to A1-B1<0.03*A1, and then the operation can be stopped. The upper limit of the running time of the dredging procedure is set in the control system, which is determined according to the actual situation, and the minimum is 10 minutes. If the circulating flow value does not increase or is always not restored to the dredged state after the upper limit time, the water distributor blockage alarm is issued, and manual processing is required.

[0085] At the same time, the sludge treatment unit is synchronized, the clean water control valve is opened to flush the lighter sludge (calcified lighter sludge) in the mixed liquid to the top of the slag discharger, and then enters the sludge tank through the overflow pipe. The heavy sludge or large impurities with serious calcification are discharged to the slag stacking area through the slag discharge pipe (the slag discharge control valve needs to be opened), and finally manually cleaned.

[0086] The sludge liquid level meter monitors the sludge liquid level value in the sludge tank. If the liquid level reaches the high set value, the sludge in the sludge tank is extracted according to the actual demand for backflow or external transport. If backflow, open the backflow control valve to the reactor, if external transport, open the sludge discharge control valve to discharge.

[0087] The ideal embodiment of the utility model is inspired, through the above description, relevant staff can definitely make various changes and modifications without deviating from the technical idea of the utility model.

[0088] The technical scope of the utility model is not limited to the content in the specification, and must be determined according to the scope of claims.

Claims

1. An IC for automatic washing and deslagging + An anaerobic reactor characterized by, The utility model relates to a kind of anaerobic reactor, including: Reactor body, several water inlet branch pipes, several water distributors, water outlet circulation pipe, sludge discharge pipe and control system; Two ends of the water inlet branch pipe extend from the reactor body, and each water inlet branch pipe is provided with a branch pipe water inlet control valve; The water distributor is arranged on the water inlet branch pipe in the reactor body; Two ends of the water outlet circulation pipe are respectively communicated with the water outlet of the reactor body and the water inlet branch pipe, and the water outlet circulation pipe is provided with an anaerobic circulation pump and a circulation water control valve; The sludge discharge pipe is used to discharge the calcified sludge washed down, and the sludge discharge pipe is provided with a sludge discharge pipe control valve; The control system is respectively connected with the anaerobic circulation pump, the circulation water control valve, the sludge discharge pipe control valve and each branch pipe water inlet control valve, and the control system is used to control the water flow in the water outlet circulation pipe to wash each water inlet branch pipe and the water distributor, and according to the flushing water flow value, the sludge discharge pipe control valve is opened and closed to discharge the calcified sludge.

2. The IC of claim 1 + An anaerobic reactor characterized in that, It also includes a water inlet main pipe, a water inlet control valve, a water outlet pipe and a water outlet control valve, The water inlet main pipe is communicated with the water inlet end of the water inlet branch pipe, and the water inlet control valve is arranged on the water inlet main pipe; The water outlet pipe is communicated with the water outlet of the reactor body, and the water outlet control valve is arranged on the water outlet pipe; The water inlet control valve and the water outlet control valve are connected with the control system, and when the flushing process and the sludge discharge process are started, the control system controls the water inlet control valve and the water outlet control valve to be closed.

3. The IC of claim 1 + An anaerobic reactor characterized in that, It also includes a deslagging device, a deslagging pipe and a sludge backflow pipe. The deslagging device is communicated with the sludge discharge pipe, and the bottom of the deslagging device is provided with a deslagging port communicated with the deslagging pipe. Two ends of the sludge backflow pipe are respectively communicated with the top of the deslagging device and the sludge backflow port of the reactor body, so as to back lead the uncalcified or low-calcified sludge into the reactor body. The deslagging pipe is provided with a deslagging control valve and a deslagging manual valve. The sludge backflow pipe is provided with a backflow control valve, a backflow manual valve and a sludge pump. The deslagging control valve, the backflow control valve and the sludge pump are connected with the control system.

4. The IC of claim 3 + An anaerobic reactor characterized in that, It also includes a sludge tank, an overflow pipe and a sludge liquid level meter, The input end of the sludge tank is connected with the top of the deslagging device through the overflow pipe, and the output end of the sludge tank is communicated with the sludge backflow pipe, The sludge liquid level meter is arranged on the sludge tank and connected with the control system, and is used to detect the sludge liquid level in the sludge tank.

5. The IC of claim 3 + Anaerobic reactor, characterized in that, It also includes a clean water flushing pipe, which is communicated with the deslagging device and is used to transport clean water to flush the uncalcified or low-calcified sludge to the top of the deslagging device. The clean water flushing pipe is provided with a clean water pipe control valve and a clean water pipe manual valve, and the clean water pipe control valve is connected with the control system.

6. The IC of any of claims 3-5 + An anaerobic reactor characterized in that, It also includes a sludge discharge pipe, a sludge discharge control valve and a sludge discharge manual valve, The sludge discharge pipe is communicated with the sludge backflow pipe, The sludge discharge control valve and the sludge discharge manual valve are arranged on the sludge discharge pipe, and the sludge discharge control valve is connected with the control system; and / or, Further comprising: a slag discharge area located at the outlet position of the slag discharge pipe.

7. The IC of claim 2 + An anaerobic reactor characterized in that, Further comprising: a standpipe and a standpipe liquid level meter, The water inlet end of the standpipe is communicated with the water outlet of the reactor body, and the two water outlet ends of the standpipe are respectively communicated with the water outlet circulation pipe and the water outlet pipe; The standpipe liquid level meter is arranged on the standpipe and used for measuring the liquid level in the standpipe; The control system is in control connection with the standpipe liquid level meter to control the operating state of the anaerobic circulation pump according to the liquid level value.

8. The IC of claim 1 + An anaerobic reactor characterized in that, The water distributor has water distribution holes, and the openings of the water distribution holes are towards the bottom of the reactor body.

9. The IC of claim 1 + Anaerobic reactor, characterized in that, Each of the water inlet branch pipes outside the reactor body is provided with a branch pipe water inlet manual valve; and / or, The water outlet circulation pipe is provided with a circulation water flow meter and a circulation water manual valve, and the circulation water flow meter is in control connection with the control system; and / or, The sludge discharge pipe is provided with a sludge discharge pipe manual valve.

10. The IC of claim 2 + An anaerobic reactor characterized in that, The water inlet main pipe is provided with a water inlet pump, a water inlet flow meter and a water inlet manual valve, and the water inlet pump and the water inlet flow meter are in control connection with the control system; and / or, The water outlet pipe is provided with a water outlet manual valve.

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