Portable sludge collection and treatment system for rural distributed domestic sewage treatment equipment

Abstract

The invention provides a portable sludge collection and treatment system for rural distributed domestic sewage treatment equipment, and relates to the related technical field of rural domestic sewage treatment. According to the main scheme, the device comprises a sludge suction pipe, an electric diaphragm pump, a self-mixing dosing device, a flow divider, a flow dividing pipe, a filter pressing bag, a medicament box, a control box and the like. According to the system, the suction and pumping characteristics of a diaphragm pump are utilized, a sludge suction pipe is used for sucking sludge in a treatment tank, the diameter of sludge particles is increased through a self-mixing dosing device, the flocculation condition of the sludge is checked through a flow divider, and finally, a filter pressing bag is used for carrying out sludge-water separation on a sludge-water mixture. According to the invention, the problems of difficult sludge collection, small point, large amount and high cost of the decentralized rural domestic sewage treatment facility are solved, the difficulty of sludge collection and disposal of the decentralized rural domestic sewage treatment facility is reduced, and the standard-reaching rate of rural domestic sewage effluent is improved.

Description

Technical Field

[0001] The present invention relates to the technical field related to rural domestic sewage treatment, and in particular to a portable sludge collection and treatment system for rural decentralized domestic sewage treatment equipment. Background Art

[0002] Rural domestic sewage mainly refers to the wastewater generated by the daily production and life of rural residents. In recent years, due to the people's increasing attention to environmental protection, its treatment work has been rapidly rolled out across the country.

[0003] The sources of rural domestic sewage mainly include toilet black water, kitchen gray water and washing and bathing gray water. According to the current situation, rural domestic sewage terminal treatment facilities are mainly divided into three types: plant treatment facilities, centralized treatment facilities and household treatment equipment. Among them, plant treatment facilities are a way to treat the daily life sewage of farmers who have access to urban pipe networks, while centralized treatment facilities refer to centralized sewage treatment terminals with a sewage treatment capacity of more than 5t / d and less than 500t / d, and household treatment equipment refers to sewage treatment facilities with a sewage treatment capacity of 5t / d and less. Plant treatment facilities and centralized treatment facilities are mainly suitable for areas where rural farmers are more concentrated. For farmers in most natural villages in rural areas, due to the scattered distribution of farmers, the cost of plant or centralized treatment is high, and decentralized sewage treatment facilities (including household treatment equipment) are more applicable. Therefore, decentralized sewage treatment facilities (including household treatment equipment) have been widely used in my country's rural domestic sewage treatment facilities.

[0004] Regardless of whether centralized treatment terminals or decentralized sewage treatment facilities are used, the main treatment processes of rural domestic sewage treatment facilities include AAO / AO process, MBBR process, biofilter process, MBR membrane treatment process, artificial wetland process, etc. Among them, AAO / AO process is the most widely used.

[0005] With the popularization of the construction of rural domestic sewage treatment facilities in my country, professional sewage operation and maintenance companies have begun the daily operation of rural domestic sewage. Since most rural domestic sewage treatment facilities do not have special sludge collection and treatment devices, and with the long-term operation of rural domestic sewage treatment facilities, the sludge accumulation in the sedimentation tanks and regulating tanks of the treatment facilities is relatively obvious, which has begun to gradually affect the effluent quality of the facilities. Therefore, the collection and treatment of facility sludge has become an urgent and important issue.

[0006] At present, the mainstream sludge collection and treatment methods of conventional rural domestic sewage treatment facilities mainly include the following two types: 1. Suction truck sludge suction method: For rural domestic sewage treatment facilities distributed around the road and where suction trucks can pass, the sludge is generally collected by suction trucks directly, and then transported to the sludge treatment unit designated by the government for formal treatment. 2. On-site facility direct treatment method: For treatment facilities that have considered sludge collection and disposal sites during facility construction, wet sludge can be directly transported to the treatment site and treated by pre-set treatment facilities.

[0007] The above two methods of sludge collection and disposal of rural domestic sewage treatment facilities have many limitations and limited application scenarios. First, the government needs to communicate and coordinate with the sludge disposal units in advance before accepting the discharge of sludge from rural domestic sewage. However, due to the fact that there are few standardized sludge disposal sites or the load is too high in many places, and the water content of rural sewage is high and the amount of sludge is unstable, there are generally few willing to accept sludge from rural sewage, so there is a problem of difficulty in communication and coordination; secondly, due to the wide distribution of rural domestic sewage treatment facilities, the collection and treatment methods of sewage suction trucks have the problem of mud and water not being separated, low single collection efficiency, and high transportation and disposal costs; finally, for most decentralized treatment facilities that are not around the road, are relatively remote, and sewage suction vehicles cannot enter the site, it will be impossible to carry out collection and treatment work.

[0008] Regarding the second method of direct treatment at on-site facilities, since the corresponding collection and treatment equipment needs to be set up in advance during the design phase, and a large treatment area needs to be occupied, and the utilization efficiency is low, generally very few facilities will set up on-site sludge treatment equipment, and this treatment mode has stronger limitations.

[0009] For decentralized domestic sewage treatment equipment in rural areas, sludge treatment has always been difficult due to its large number, wide distribution, and remote geographical location. It is a difficult problem in the current operation of rural domestic sewage treatment facilities. Summary of the invention

[0010] The purpose of the present invention is to solve the problem of poor convenience in sludge treatment in the prior art, and to propose a portable sludge collection and treatment system for rural decentralized domestic sewage treatment equipment.

[0011] To achieve the above objectives, the technical solution of the present invention is implemented through the following technical solutions:

[0012] A portable sludge treatment system suitable for decentralized domestic sewage treatment facilities in rural areas includes a lightweight and durable trolley as a chassis, an electric diaphragm pump, a mixing and dosing device, a plurality of filter bags and a control box. The electric diaphragm pump is fixed at the rear of the base of the trolley, close to the connection of the trolley push rod, and its system water inlet is connected to the D65PVC sludge suction pipe through the system water inlet hose; the water outlet end of the electric diaphragm pump is connected to the diaphragm pump water outlet hose, and the diaphragm pump water outlet hose is connected to the self-mixing dosing device; the self-mixing dosing device can be matched with the self-mixing dosing device of the prior utility model patent (a mobile self-mixing dosing device, CN202121697797.7), and the water inlet and outlet and the fixing method are appropriately modified according to the installation position of the mixing dosing device. The mud-water mixture enters the diverter after being preliminarily mixed with the reagent. The diverter is provided with three diverter pipes of the same material; the diverter pipe is provided with a D50PVC ball valve of the same diameter, and the outlet of the diverter pipe is installed with a system water outlet hose. Before entering the filter press bag, a water inlet short pipe of the same diameter is provided, and the water inlet short pipe is connected to the water inlet of the filter press bag at the rear. The water inlet of the filter press bag and the water inlet short pipe are connected with a D50 throat clamp; the filter press bag is made of polyester as a whole, and a mud zipper seal is provided at the bottom. After the initial separation of mud and water, the filter press bag can be used as a temporary storage place for the sludge after the separation of mud and water and placed on site to wait for its natural drying.

[0013] Through the above technical scheme, the sludge in the sludge pool of rural decentralized domestic sewage treatment equipment can be directly pumped away by the negative pressure of the electric diaphragm pump, and the mud-water mixture can be stirred and the bottom sludge in the sedimentation tank can be fully sucked away for treatment by moving the hard PVC pipe. The self-mixing dosing device can utilize the flow rate difference to suck the PAM solution agent into the pipeline of the mud-water mixture for mixing; the diverter is to promote the mud-water mixture and the agent to be mixed again. At the same time, in this diverter, the mud-water mixture is controlled by the D50PVC ball valve of the diverter pipe to be input into the filter bag respectively. The water content of the mud-water mixture in the filter bag flows out from the gap of the filter bag. Due to the existence of the pressure of the electric diaphragm pump, the mud and water are separated relatively quickly. When a filter bag is separated, the next D50PVC ball valve is opened and the current D50PVC ball valve is closed to complete the collection of sludge in a filter bag; after the filter bag completes the separation of the mud-water mixture, the filter bag mouth should be tied with a rope to prevent the sludge from overflowing, and the D65 throat clamp between the filter bag mouth and the system outlet hose is removed, and the filter bag is placed on the site. After it is initially dried, the sludge that has been initially dried is taken out by opening the mud zipper at the tail of the filter bag and then the collection bag is transported out. After the transportation is completed, the filter bag is cleaned for the next use. This method is circulated until the mud-water mixture that needs to be treated in the sedimentation tank, regulating tank, etc. of the treatment facility is completely pumped out.

[0014] Furthermore, the length and width of the trolley are 1.1*1.0m, and the frame of the trolley is made of hot-dip galvanized square tube steel of national standard size, the size of the square tube steel is 40*40*3mm, and the load capacity is not less than 300kg; a handrail is set in the width direction, and the handrail is welded with a Φ40*1.5 hot-dip galvanized pipe and the bottom plate, and a 2mm thick hot-dip galvanized steel plate is laid on the outer side above the frame as the bottom plate, and the galvanized plate bottom plate is connected to the square tube steel by welding process; 2 universal wheels and 2 fixed wheels are installed at the bottom of the trolley, and the size of the universal wheel and the fixed wheel is 8 inches. The universal wheel is arranged at the bottom of the trolley near the handrail, with a foot brake fixing function; the fixed wheel is installed on the other side of the handrail. By adopting the above scheme, it can be ensured that the sludge treatment system can pass through the cement walkways or dirt roads behind most houses that cannot be passed by sewage suction trucks. If it encounters wasteland or narrow corridors, it can also have a certain degree of passage function. Even if it is a ridge that can only be passed by walking, the treatment device can be moved to the range of the treatment terminal by two or more people.

[0015] Furthermore, the electric diaphragm pump can be made of polypropylene, and the water flow rate of the equipment is not less than 8m 3 / h, the inlet and outlet diameters are both D65, connected by flanges; the system water inlet is connected to it by a D65 flange and a pagoda head of the same diameter welded thereto; the pagoda head of the system water inlet is connected to the system water inlet hose by a D65 hose clamp, the system water inlet hose adopts a D65 steel wire hose, the system water inlet hose is not less than 10 meters long, and the other end of the system water inlet hose is equipped with a D65PVC mud suction pipe of the same diameter; the D65PVC mud suction pipe is 2 meters long, and a D65 external thread is directly installed on the other side. At the same time, 2 spare extension pipes are required. The two ends of the spare extension pipe are respectively equipped with a D65 external thread and an internal thread. The D65PVC mud suction pipe and the spare extension pipe are directly connected by a male and female structure thread; the D65 external thread of the D65PVC mud suction pipe is directly connected to the filter screen head equipped with an internal thread of the same diameter, and the filter screen head can be replaced by a bottom valve with the check plate component removed, and the mesh spacing is not more than 10mm. By adopting the above scheme, it can be ensured that the sludge can be sucked smoothly in the tank body. The polypropylene diaphragm pump can reduce the weight of the mobile sludge and facilitate the transportation of the system; the diaphragm pump outlet hose can minimize the space occupied during the transportation of the system, and secondly, it can ensure the flexibility of the D65PVC sludge suction pipe during sludge suction; the spare extension pipe is used to connect through a threaded connection when the treatment tank is too deep and the length of a single D65PVC sludge suction pipe is not enough, so as to ensure that the filter head at the water inlet end can stir and suck the mud-water mixture without dead angles in all parts of the tank body, and suck as much sludge in the tank body as possible into the sludge collection and treatment system. In addition, it can also perform stirring and other operations depending on the sludge concentration, so as to facilitate the thorough cleaning of the sludge in the tank body; the filter head is to effectively prevent excessive particulate pollutants from being sucked into the diaphragm pump, reduce the probability of water pump blockage, reduce damage to the diaphragm pump diaphragm, and facilitate cleaning when blocked.

[0016] Furthermore, the water outlet of the electric diaphragm pump is connected to it by a D65 flange and a reducer pagoda head welded thereto. The sizes of the two ends of the reducer are D65 to D50 respectively, and the flanges are fixed with bolts; the pagoda head is fixed to the diaphragm pump outlet hose with a D50 throat clamp, and the diaphragm pump outlet hose is a D50 steel wire hose; the diaphragm pump outlet hose is connected to the self-mixing dosing device, and is also fixed with a D50 throat clamp. By adopting the above scheme, the diaphragm pump outlet hose is connected to the mixing dosing device, which can facilitate the connection between the various devices in the system and improve the convenience of equipment installation; the D50 throat clamp connection method can install the equipment pipeline faster, ensure the stability of the pipeline connection, and prevent the pipeline from falling off.

[0017] Furthermore, an L50 angle iron is provided at the bottom of the electric diaphragm pump, the L50 angle iron is welded to the bottom steel plate, the top opening position is determined according to the opening position of the electric diaphragm pump, and the diaphragm pump is fixed to the L50 angle iron by bolts; the electric diaphragm pump is installed horizontally, the water inlet and outlet are located on the left side of the hand-pushing trolley, and the motor is located on the right side; above the motor is the control box of the sludge collection and treatment system, the control box is fixed to the control box platform by bolts, the control box panel and buttons face the outside of the hand-pushing trolley, and are made of stainless steel; the control box platform is made of L4 0 Angle iron is set up, and the upper part is a 400*250mm angle iron frame set up by angle iron, and a 2mm thick galvanized iron plate is laid on the upper part of the angle iron frame as the bottom plate of the control box, and the lower part is welded to the bottom plate of the trolley, and the platform height is 75cm; by adopting the above scheme, the hierarchical structure can be fully and reasonably arranged to arrange the trolley space, which is convenient for the transportation of facilities; the bolt connection method can facilitate the fixing and disassembly of the equipment, and ensure the normal use of the electric diaphragm pump and the control box; the auxiliary materials such as the angle iron need to be welded and connected, which can ensure the stability of the electric diaphragm pump and the control box.

[0018] Furthermore, the mixing and dosing device is located on the outside of the electric diaphragm pump and is installed in a vertical manner. The bottom is lifted 80 mm as a whole by the channel steel A connector. The water inlet and outlet of the mixing and dosing device are located on the same side as the water inlet of the diaphragm pump and are both located above the device. The dosing capacity matches the dosing pump capacity. At the same time, local changes are made according to the equipment. For example, a vent valve needs to be added under the mixing and dosing device and a drain ball valve needs to be installed, and a welding diverter and a connecting angle iron of the pipeline need to be installed on the top. By adopting the above scheme, the existing mature mixing and dosing device can be fully utilized to mix the PAM agent with the sucked mud and water mixture, the device equipment can be reasonably arranged, the device footprint can be reduced, and it is convenient for personnel to carry out mud and water separation operations; the mixing and dosing device can ensure that the sludge treatment system can be fully mixed with the coagulant during treatment, increase the connection strength between the sludges, and make the dispersed sludge connected into larger sludge flocs under the action of the cross-linking agent, accelerate the separation speed of sludge and water in the mud and water mixture, and reduce the possibility of sludge being pressed out of the filter bag during subsequent treatment; the emptying ball valve of the mixing and dosing device is mainly used to facilitate the emptying of sludge materials in the pipeline and the device after the facility is completed, prevent sludge from depositing in the pipeline and the mixing and dosing device, and should be cleaned with clean water to ensure that the system device will not be blocked.

[0019] Furthermore, the diverter is located directly above the mixing and dosing device, and is made of hard PVC material, 0.5 meters long, D110mm in diameter, and in the same direction as the mixing and dosing device. It is fixed to the angle iron A of the mixing and dosing device through a detachable U-shaped clamp A connector, and the angle iron A is welded to the mixing and dosing device; the water inlet of the diverter is in the same direction as the water outlet of the mixing and dosing device, and is connected to the water outlet of the mixing and dosing device by a drug-mixing connecting hose, which is a D50 steel wire hose, and the connection between the drug-mixing connecting hose and the hard pipe is fixed with a D50 throat clamp; a sampling exhaust valve is installed on the other side of the water inlet of the mixing and dosing device, and a PVC material ball with a diameter of D20mm is used. The valve body has a guide pipe connected to the rear end of the valve body; a D20 short pipe is welded to the top of the middle part of the diverter, and a D20PVC ball valve and an internal thread of the same material are directly connected to the upper part, and a vacuum pressure gauge is installed through a conversion joint; the vacuum pressure gauge adopts a hydraulic impact-resistant gauge head with a small dial, and the pressure range is -0.1MPa to +0.15MPa; 3 diverter pipes are welded on the side of the diverter facing away from the diaphragm pump, evenly distributed on one side of the diverter, and the spacing between each diverter pipe is 200mm, and each diverter pipe is respectively installed with a D50PVC ball valve; the diverter pipe is a D50PVC short pipe, which is connected to the filter bag through the system outlet hose, and the system outlet hose adopts a D50 steel wire hose. By adopting the above scheme, it can be ensured that the sludge of the sludge treatment system can be smoothly pumped into the filter bag during the treatment process. The sampling and exhaust valve can be used to check the sludge flocculation effect of the system regularly or irregularly so as to adjust the valve opening of the reagent box to increase or decrease the amount of reagent, and can also play a role in emptying the mud-water mixture in the retention system at the end of a round of treatment; a ball valve is arranged under the vacuum pressure gauge, which can monitor the pressure of the system and the diaphragm pump to ensure the filtration effect of the filter bag, thereby preventing accidents caused by excessive pressure in the filter bag, and also provide convenience for online replacement or maintenance of the gauge head to ensure the normal operation of the system; the vacuum pressure gauge adopts a hydraulic impact-resistant gauge head, which can effectively prevent the pressure gauge from being damaged due to excessive pressure during use; a ball valve is installed on the outlet side of each of the three diverter pipes of the diverter, which can effectively control the operation order and operation mode of the filter bag, and can also reduce the system operating pressure by opening or reducing the filter bag after detecting abnormal system pressure.

[0020] Furthermore, the medicine box is located on one side of the mixing and dosing device, adopts a square box structure, is placed on the bottom plate of the trolley platform, is fixed with positioning angle steels on all sides, and has a capacity of 40L; a D20mm water outlet is arranged at the lower part of one side of the medicine box, and the water outlet is directly connected to the D20PVC internal thread by an internal thread water tank joint and then connected to the D20PVC tee. An emptying valve is installed on one side of the D20PVC tee, and the other side is connected to the D20 steel wire hose at the dosing pipe end of the mixing and dosing device. The D20 steel wire hose is successively provided with a slipknot, a flow regulating valve, and a rotor flowmeter, and is finally connected to the dosing pipe of the mixing and dosing device; a micro-mixer is arranged on the medicine box for slow stirring; by adopting the above scheme, the amount of medicine used in the system dosing process can be better controlled to reduce waste. The square medicine box can ensure that the distribution of system equipment is more compact and convenient for field transportation; the positioning angle steel can effectively fix the medicine box so that it will not move when the system is running, and can be easily replaced during maintenance; the flow regulating valve and rotor flowmeter can effectively control the amount of medicine used during system operation within a reasonable range to avoid insufficient or wasted medicine; the micro-mixer can effectively ensure that the medicine in the medicine box will not stick together, thereby extending the use time of the medicine.

[0021] Furthermore, the filter bag is made of 80 mesh PET polyester fabric, each filter bag is sized to 2000×1000mm, and the inner turning flat sewing process is adopted. A mud zipper is set on the side with longer length of the filter bag; the mud zipper is made of ordinary nylon zipper, with a length of 1 meter, and the two sides are connected to the filter bag by sewing process; a filter bag water inlet is set in the middle position of the other side of the mud zipper, and the filter bag water inlet is made of the same material as the filter bag, and is connected to the filter bag water inlet by sewing process, and the width of the filter bag water inlet is about 100mm and the length is 100mm; a water inlet short pipe is inserted into the water inlet of the filter bag, and the water inlet short pipe adopts a D50 plastic short pipe with a length of 500mm, and the other end is connected to the system water outlet hose; the filter bag is generally placed around the inspection well of the treatment facility regulating tank or on the grass. By adopting the above scheme, it can be ensured that the filter bag of the portable sludge treatment system has a faster water outlet speed but a smaller amount of sludge seepage. The size of the filter press bag is more suitable for the site conditions of rural decentralized domestic sewage treatment equipment, and will not lead to the situation of having nowhere to put it; the filter press bag adopts the inner-turned flat-sewing process, which can ensure that the overall pressure-bearing capacity of the filter press bag is relatively moderate, and reduce the occurrence of bag breakage and loose edges due to excessive pressure in the filter press bag; a nylon zipper is arranged on the longer side of the filter press bag, which can facilitate the removal of the dried sludge after the mud-water mixture is initially dried, and can be recycled and reused after cleaning, thereby reducing waste and reducing costs; the filter press bag is placed around the regulating tank or on the grass, which is conducive to the natural drying of the sludge, and the sludge is further dried by natural factors such as sunlight, gravity and wind, which is convenient for later transportation and disposal, and can generally be directly applied to greening and grass around the treatment facilities.

[0022] Through the above technical scheme, when there is sludge in the rural decentralized domestic sewage treatment equipment that needs to be treated, the portable sludge treatment system device can be directly transported to the vicinity of the treatment facility, and the sludge stored in the equalization tank and the secondary sedimentation tank can be completely cleaned up by utilizing the self-priming and pump pressure characteristics of the diaphragm pump. At the same time, according to the conditions of other tanks, including anaerobic tanks, part of the sludge can be cleaned up to ensure the normal operation of the sewage treatment facilities.

[0023] The present invention provides a portable sludge collection and treatment system for rural decentralized domestic sewage treatment equipment, which has the following advantages over the prior art:

[0024] (1) The present invention uses a diaphragm pump to extract the sludge mixture from the sedimentation tank and the regulating tank of the treatment facility from the device, send it to the mixing and dosing device for flocculation, and then pump it into the mud-water separation bag for mud-water separation. In this simple way, the sludge in the rural decentralized domestic sewage treatment equipment can be directly separated from the water on site, reducing the volume and weight of the sludge. In this way, the amount of sludge on site can be reduced, the disposal cost can be reduced, the operation and maintenance of the facility can be facilitated, and the problem of the difficulty in handling decentralized sludge can be solved. After separation by the system, the separated sewage generally flows by gravity into the original regulating tank or lifting well for treatment, while the separated wet sludge is placed on the facility site. After a period of natural drying, it initially becomes dry sludge with a low water content and is directly transported out manually. It can be used as organic matter for agricultural planting soil and other treatments;

[0025] (2) The present invention collects and processes sludge from decentralized rural domestic sewage treatment equipment distributed in various rural areas through a simple, lightweight, and movable sludge collection and processing method, thereby solving the problems encountered in the operation and maintenance of decentralized rural domestic sewage treatment equipment and helping to achieve long-term stable operation of the facilities;

[0026] (3) The present invention can provide an in-situ collection and treatment method for decentralized domestic sewage treatment equipment that cannot be entered or covered by large vehicles such as suction trucks. The modular sludge collection and treatment system reduces the volume of the sludge collection and treatment system and provides a new sludge collection and treatment method;

[0027] (4) The present invention adopts a movable push cart to solve the problem of moving the treatment equipment during the sludge collection and treatment process of rural decentralized sewage treatment facilities, thereby improving the utilization efficiency of the sludge collection and treatment system;

[0028] (5) The present invention solves the problem of collecting the mud-water mixture in the sludge collection and treatment tank of the rural decentralized sewage treatment facility by using a diaphragm pump, thereby ensuring that the mud-water mixture is collected more thoroughly and the operation is more convenient.

[0029] (6) The present invention solves the problem of effective separation of mud-water mixture in the treatment tank of rural decentralized sewage treatment facilities through the application of filter press bags. Through a simple and efficient treatment method, it perfectly solves the problem of on-site mud-water separation and greatly reduces the cost of sludge collection and treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a front view structural schematic diagram of the sludge collection and treatment system of the present invention;

[0031] Figure 2 It is a schematic diagram of the top view of the structure of the sludge collection and treatment system of the present invention;

[0032] Figure 3 This is a front view structural schematic diagram of the hand-pushed trolley of the present invention;

[0033] Figure 4 It is a side view structural schematic diagram of the diverter of the present invention;

[0034] Figure 5 It is a schematic diagram of the top view of the structure of the diverter of the present invention;

[0035] Figure 6 It is a schematic diagram of the top view of the medicine box of the present invention;

[0036] Figure 7 It is a front view structural schematic diagram of the medicine box of the present invention;

[0037] Figure 8 This is a schematic diagram of the water inlet structure of the system of the present invention;

[0038] Fig. 9 This is a schematic diagram of the structure of the filter press bag of the present invention;

[0039] Fig.10 It is a schematic diagram of the discharge port of the self-mixing dosing device of the present invention.

[0040] In the figure: 1. Hand trolley; 2. Electric diaphragm pump; 3. Self-mixing dosing device; 4. Diverter; 5. Diverter pipe; 6. Chemical box; 7. Control box; 9. Fixed wheel; 10. Universal wheel; 11. Square tube steel; 12. Galvanized sheet bottom plate; 13. L50 angle iron; 14. Channel steel A; 15. Positioning angle iron; 16. L40 angle iron; 17. Control box bottom plate; 18. Handrail; 19. Angle iron A ; 20, U-shaped clamp A; 21, D20 short pipe; 22, D20PVC ball valve; 23, internal thread direct; 24, pressure vacuum gauge; 25, D50PVC short pipe; 26, D50PVC ball valve; 27, D50 steel wire hose; 28, D20PVC short pipe; 29, sampling exhaust valve; 30, internal thread water tank joint; 31, D20PVC internal thread direct; 32, D20P VC tee; 33, drain valve; 34, flow regulating valve; 35, D20 steel wire hose; 36, micro mixer; 37, rotor flowmeter; 38, D20 throat clamp; 39, diaphragm pump water outlet hose; 40, diaphragm pump water outlet; 41, system water inlet; 42, D65 throat clamp; 43, system water inlet hose; 44, D65PVC mud suction pipe; 45, D65 external thread direct; 46, filter head; 47, D50 throat clamp; 48, drug mixing connection hose; 49, system water outlet hose; 50 water inlet short pipe; 51, filter bag inlet; 52, filter bag; 53, mud zipper; 54, D32 discharge port; 55, D32 discharge valve; 56, D32 discharge pipe; 57, D65 internal thread direct; 58, spare extension pipe; 59, channel steel B; 60, water inlet control valve. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention is clearly and completely described below in combination with the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] Embodiment 1:

[0043] Reference Figure 1-10 A portable sludge collection and treatment system for rural decentralized domestic sewage treatment equipment includes a hand-pushed trolley 1 at the bottom and an electric diaphragm pump 2, a self-mixing dosing device 3, a diverter 4, a diverter pipe 5, which are sequentially connected on the main process route, and a reagent box 6 and a control box 7 located on the auxiliary process route.

[0044] The facilities located in the main process flow line are as follows: the water inlet end of the electric diaphragm pump 2 is connected to the system water inlet 41 in turn, and the two are connected by bolts. The front end of the system water inlet 41 is connected to the system water inlet hose 43 through the D65 throat clamp 42, and the front end of the system water inlet hose 43 is connected to the D65PVC material suction pipe 44 through the D65 throat clamp 42, and the front part is the D65 external thread 45 connected by the socket structure, and the front end is the filter screen head 46; the outlet end of the electric diaphragm pump 2 is connected to the diaphragm pump outlet 40 by bolts, and the rear end is directly inserted into the diaphragm pump outlet hose 39, and the two are connected and fixed by the D65 throat clamp 42; the diaphragm pump outlet The other end of the water hose 39 is inserted into the water inlet of the self-mixing dosing device 3, and the two are also connected and fixed by the D65 throat clamp 42; the water outlet end of the self-mixing dosing device 3 is directly connected to the drug-mixing connecting hose 48, and the two are connected and fixed by the D50 throat clamp 47, and the other end of the drug-mixing connecting hose 48 is connected to the water inlet end of the diverter 4; the water outlet D50PVC short pipe 25 of the diverter pipe 5 is connected to the system water outlet hose 49, and the other end of the hose is connected to the water inlet short pipe 50, and both are fixed by the D50 throat clamp 47; the other end of the water inlet short pipe 50 is directly inserted into the water inlet 51 of the filter bag, and the two are fixed by the D50 throat clamp 47.

[0045] The facilities located in the auxiliary process flow route are as follows: the bottom opening of the medicine box 6 is water-stopped and connected through an internal thread water tank joint 30, the internal thread water tank joint 30 is directly connected to the D20PVC tee 32 through an internal thread 31, and an emptying valve 33 is set on one side of the tee through a connecting short pipe, and a slipknot ball valve of the same diameter, i.e., a flow regulating valve 34, is connected to the other side, and then connected to the D20 steel wire hose 35 through an elbow straight pipe, etc. The other end of the D20 steel wire hose 35 is connected to the dosing connection port of the self-mixing dosing device 3.

[0046] When using:

[0047] The sludge in the secondary sedimentation tank and regulating tank of the agricultural sewage treatment facility is attracted by the negative pressure generated by the opening and closing of the diaphragm of the electric diaphragm pump 2. After filtering out large pieces of debris through the filter head 46 at the front end, the mud and water mixture is sucked into the D65PVC mud suction pipe 44. Then, as the diaphragm of the electric diaphragm pump 2 opens and closes, the mud and water mixture is squeezed out of the diaphragm pump and enters the self-mixing dosing device 3 for preliminary separation of the mud and water mixture.

[0048] In the self-mixing dosing device 3, the mud-water mixture is mixed with the PAM agent from the agent box 6, and the fine sludge in the mud-water mixture is gradually aggregated into large granular sludge through the action of the cross-linking agent, thereby preliminarily achieving the separation of sludge and water to facilitate subsequent operations.

[0049] The mud-water mixture and the reagent are repeatedly deflected through the elbow of the self-mixing dosing device 3 to achieve the mixing of the reagent and the mud-water mixture, and the separation of the mud-water mixture is basically achieved through the separation of the mixing box partition at the rear end of the self-mixing dosing device 3. The mud-water mixture after preliminary separation enters the diverter 4 through the reagent-mixing connecting hose 48, and the separation of the mud-water mixture is checked through the set sampling exhaust valve 29, so as to adjust the reagent dosage through the flow regulating valve 34 or adjust the water inlet flow through the water inlet control valve 60; the dosage of the reagent is determined by the rotor flowmeter 37, and the size of the water inlet control valve 60 is determined by checking the separation of the mud-water mixture through the sampling exhaust valve 29.

[0050] The diverter 4 can observe the pressure of the mud-water separation device through the pressure vacuum gauge 24, and the pressure can be determined by adjusting the number of D50PVC ball valves 26 of the diverter pipe 5. The separated mud-water mixture enters the filter bag 52 through the diverter pipe 5 for the final mud-water separation operation.

[0051] The filter bag 52 is a PET polyester fabric that can just block the sludge in the mud-water mixture and allow the clean water to be separated from the gaps in the filter bag; the separation of mud and water in the filter bag 52 requires the use of pressure to continuously filter out the clean water and leave the sludge in the filter bag. The pressure can be observed by the pressure vacuum gauge 24. The sludge in the treatment facility pool is transferred to the filter bag by this simple physical separation method, thereby achieving the goal of sludge removal in the sewage treatment facility.

[0052] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A portable sludge collection and treatment system for rural decentralized domestic sewage treatment equipment, comprising a trolley (1) and a main process system and an auxiliary process system arranged on the trolley (1), characterized in that: The main process system comprises an electric diaphragm pump (2), a self-mixing dosing device (3), and a diverter (4) which are connected in sequence, wherein the water inlet end of the electric diaphragm pump (2) is connected to a D65PVC sludge suction pipe (44) and a filter screen head (46) through a system water inlet hose (43) connected to a system water inlet (41) for sludge suction, the water outlet end of the electric diaphragm pump (2) is connected to the water inlet of the self-mixing dosing device (3) through a diaphragm pump water outlet hose (39), the water outlet end of the self-mixing dosing device (3) is connected to the water inlet end of the diverter (4) through a drug mixing connection hose (48), and three small-diameter diverter pipes (5) are evenly distributed on the side of the diverter (4), and the diverter pipe (5) is connected to the filter bag (52) through a filter bag water inlet (51) and a water inlet short pipe (50); The auxiliary process system comprises a reagent box (6), the bottom opening of the reagent box (6) is provided with an internal thread water tank joint (30), the internal thread water tank joint (30) is connected to a D20PVC tee (32) through a D20PVC internal thread (31), a drain valve (33) is provided on one side of the D20PVC tee (32), and a flow regulating valve (34) is connected to a D20 steel wire hose (35) on the other side, and the other end of the D20 steel wire hose (35) is connected to a dosing connection port of a self-mixing dosing device (3); The main process system and the auxiliary process system are both controlled to run or stop by switches arranged on the control box (7).

2. The portable sludge collection and treatment system according to claim 1, characterized in that: The handcart (1) is provided with a handrail (18) on one side. The handcart (1) is provided with an L50 angle iron (13), a channel steel A (14), a positioning angle iron (15) and an L40 angle iron (16). A control box bottom plate (17) is connected above the L40 angle iron (16) and is used to fix the electric diaphragm pump (2), the self-mixing dosing device (3), the medicine box (6) and the control box (7) respectively. In addition, a fixed wheel (9) and a universal wheel (10) are provided at the lower end of the handcart (1).

3. The portable sludge collection and treatment system according to claim 2 is characterized in that: The self-mixing dosing device (3) is placed vertically sideways, and a channel steel B (59) is welded at the bottom and connected to a channel steel A (14) located on a hand-pushed trolley (1). The water inlet and the water outlet of the self-mixing dosing device (3) are placed on the top. A D32 discharge port (54) is arranged at the bottom of a mixing box at the rear end of the self-mixing dosing device (3); a D32 discharge valve (55) and a D32 discharge pipe (56) are arranged at the front end of the D32 discharge port (54); and the D32 discharge pipe (56) is connected to the self-mixing dosing device (3) by welding.

4. The portable sludge collection and treatment system according to claim 1, characterized in that: The D65PVC mud suction pipe (44) at the front end of the system water inlet hose (43) is a hard pipe, and the two are connected by a direct socket connection method and are connected and fixed by a D65 throat clamp (42). The single pipe length of the D65PVC mud suction pipe (44) is 2 meters, and its front end is directly connected to the inner thread of the filter head (46) by a D65 outer thread (45). Two spare extension pipes (58) of the D65PVC mud suction pipe (44) are provided. The length of the spare extension pipe (58) is consistent with that of the D65PVC mud suction pipe (44), both of which are 2 meters. The two ends of the spare extension pipe (58) are respectively fixedly connected to the D65 outer thread (45) and the D65 inner thread (57) of the same diameter.

5. The portable sludge collection and treatment system according to claim 4 is characterized in that: The filter screen head (46) is installed at the front end of the D65PVC mud suction pipe (44) or the spare extension pipe (58), and the three are connected by threaded connection. The D65PVC mud suction pipe (44) is provided with a water inlet control valve (60).

6. The portable sludge collection and treatment system according to claim 1, characterized in that: The maximum flow rate of the electric diaphragm pump (2) does not exceed 8m 3 / h, the maximum lift is 30m, the maximum suction lift is 4.5m, and the maximum power does not exceed 2.2kw.

7. The portable sludge collection and treatment system according to claim 1, characterized in that: The flow divider (4) is located at the top end of the self-mixing dosing device (3), and the two are connected via an angle iron A (19) and a U-shaped clamp A (20); and the flow divider (4) is fixed by bolts.

8. The portable sludge collection and treatment system according to claim 1, characterized in that: The water inlet end of the flow divider (4) is socketed with a D50 short tube, and the sampling port end is connected to the sampling exhaust valve (29) through a D20PVC short tube (28).

9. The portable sludge collection and treatment system according to claim 1, characterized in that: The diverter pipe (5) is welded to the diverter (4) via a D50PVC short pipe (25); the diverter pipe (5) is connected to the filter bag (52) via a system water outlet hose (49); a D50PVC ball valve (26) is provided in the middle section of the D50PVC short pipe (25); a mud extraction zipper (53) is provided on the opposite side of the water inlet of the filter bag (52) to realize zipper opening and closing.

10. The portable sludge collection and treatment system according to claim 1, characterized in that: A micro mixer (36) is arranged inside the medicine box (6), and a rotor flow meter (37) is arranged between the quantity regulating valve (34) and the D20 steel wire hose (35).

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