Ultrafiltration membrane and hollow fiber membrane combined seawater desalination treatment equipment

Abstract

The invention belongs to the technical field of seawater desalination, and in particular relates to ultrafiltration membrane and hollow fiber membrane combined seawater desalination treatment equipment which comprises a pretreatment mechanism; the ultrafiltration membrane filtering mechanism is arranged at a position adjacent to the pretreatment mechanism and is communicated with the pretreatment mechanism; the pretreatment mechanism comprises a water tank, a conveying belt and a deslagging box, one end of the water tank is fixedly connected with the deslagging box, one end of the inner wall of the water tank is rotatably connected with the conveying belt, one end of the conveying belt extends into the deslagging box and is rotatably connected with the deslagging box, and the end, located in the deslagging box, of the conveying belt is higher than one end of the water tank; a plurality of filtering holes are formed in the surface of the conveying belt and evenly distributed in the surface of the conveying belt in a linear array mode, and the bottom of the water tank communicates with a water pump. By means of the design of the pretreatment mechanism, most impurities can be removed, and clean inflow water is provided for subsequent treatment steps such as membrane filtration.

Description

Technical Field

[0001] The invention belongs to the technical field of seawater desalination, in particular to a seawater desalination treatment device combining an ultrafiltration membrane and a hollow fiber membrane. Background Art

[0002] With the continuous growth of the global population and the rapid development of the economy, the problem of water shortage is becoming increasingly serious. As one of the effective ways to obtain fresh water resources, seawater desalination technology and its application have received widespread attention. Although traditional seawater desalination technologies such as distillation and reverse osmosis have achieved certain results, there are still many challenges in terms of energy consumption, cost, operation and maintenance.

[0003] Ultrafiltration membrane is a polymer semipermeable membrane used in the ultrafiltration process. It mainly uses the micropores of the membrane to screen molecules of different sizes. During the ultrafiltration process, appropriate pressure is applied to one side of the membrane so that water and small molecular solutes smaller than the membrane pore size can pass through the membrane surface, while polymer colloids or suspended particles larger than the membrane pore size are retained; hollow fiber membrane is a self-supporting membrane with a fiber-like appearance and a hollow fiber structure inside. It has selective permeability characteristics;

[0004] At present, although ultrafiltration membrane and hollow fiber ultrafiltration membrane technology have made significant progress in their respective fields, there is no combined equipment that effectively combines the two in seawater desalination treatment. In addition, many existing seawater desalination equipment lacks sufficient pretreatment links, or the pretreatment means are single and the effect is poor, which leads to the impurities such as suspended matter and macromolecular organic matter in seawater not being effectively removed and directly entering the subsequent treatment unit, increasing the risk of membrane contamination and shortening the service life of the membrane;

[0005] To this end, the present invention provides a seawater desalination treatment device combining an ultrafiltration membrane and a hollow fiber membrane. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve the technical problem is: the ultrafiltration membrane and hollow fiber membrane combined seawater desalination treatment equipment described in the present invention comprises:

[0008] Pre-treatment institutions;

[0009] The ultrafiltration membrane filtering mechanism is arranged adjacent to the pretreatment mechanism and is in communication with the pretreatment mechanism;

[0010] The pretreatment mechanism includes a water tank, a conveyor belt and a slag discharge box, one end of the water tank is fixedly connected to the slag discharge box, one end of the inner wall of the water tank is rotatably connected to the conveyor belt, one end of the conveyor belt extends into the inside of the slag discharge box and is rotatably connected to the slag discharge box, the conveyor belt is located at one end of the slag discharge box higher than one end of the water tank, a plurality of filter holes are arranged on the surface of the conveyor belt, the filter holes are evenly distributed on the surface of the conveyor belt in a linear array, and the bottom of the water tank is connected to a water pump;

[0011] The ultrafiltration membrane mechanism comprises a filter tank and an ultrafiltration membrane filter plate, the filter tank is communicated with the output end of the water pump, an ultrafiltration membrane filter plate is arranged inside the filter tank, and the bottom of the filter tank is arranged in an inverted cone shape;

[0012] It also includes a hollow fiber membrane filtration mechanism, which includes a support frame, a first water storage pipe, a hollow fiber membrane filter tube and a second water storage pipe. The first water storage pipe is fixedly connected to the top of the support frame, the first water storage pipe is connected to the bottom of the filter tank, the two ends of the first water storage pipe are respectively connected to five hollow fiber membrane filter tubes, the bottom of the hollow fiber membrane filter tube is connected to the second water storage pipe, and one end of the second water storage pipe is connected to a drain pipe.

[0013] Preferably, the conveyor belt is provided with a first transmission shaft at one end of the water tank, and the first transmission shaft is rotatably connected to the water tank. The conveyor belt is provided with a second transmission shaft at one end of the slag box, and the second transmission shaft is rotatably connected to the slag box. A motor is fixedly connected to one end of the side wall of the slag box, and the output end of the motor is fixedly connected to the second transmission shaft.

[0014] Preferably, a cleaning roller is rotatably connected to the interior of the slag discharge box below the conveyor belt, and a plurality of bristles are provided on the surface of the cleaning roller.

[0015] Preferably, the outer wall of the slag discharge box is located at one end of the second transmission shaft and is rotatably connected to the first gear, the first gear input shaft is fixedly connected to the second transmission shaft, the bottom of the first gear is meshingly connected to the second gear, the second gear is rotatably connected to the slag discharge box, the outer wall of the slag discharge box is located at one end of the cleaning roller and is rotatably connected to the third gear, the third gear input shaft is fixedly connected to the cleaning roller, the third gear is meshingly connected to the second gear, the diameter of the first gear is larger than the diameter of the second gear, and the diameter of the second gear is larger than the diameter of the third gear.

[0016] Preferably, a plurality of protrusions are fixedly connected to the surface of the conveyor belt, and the protrusions are evenly distributed on the surface of the conveyor belt in a linear array and are located between two adjacent filter holes.

[0017] Preferably, a water inlet is provided at one end of the top of the water tank, a material receiving hopper is fixedly connected to the inner wall of the water tank at the water inlet, the material receiving hopper is arranged in an inverted cone shape, four first supporting legs are fixedly connected to the bottom of the water tank, and a slag discharge port is provided at one end of the bottom of the slag discharge box.

[0018] Preferably, the water pump output end is connected to a first connecting pipe, the first connecting pipe is connected to the side wall of the filter tank, the output end of the first connecting pipe is located above the ultrafiltration membrane filter plate, a top cover is provided on the top of the filter tank, four second supporting legs are fixedly connected to the bottom of the filter tank, the bottom of the filter tank is connected to a second connecting pipe, and the second connecting pipe is connected to the first water storage pipe.

[0019] Preferably, four holders are fixedly connected to one end of the inner wall of the filter tank, and four slots are provided at the bottom of the ultrafiltration membrane filter plate, and the holders are movably connected to the slots.

[0020] The beneficial effects of the present invention are as follows:

[0021] 1. The ultrafiltration membrane and hollow fiber membrane combined seawater desalination treatment equipment described in the present invention can remove most impurities through the design of the pretreatment mechanism, and provide relatively clean inlet water for subsequent membrane filtration and other treatment steps, which helps to ensure the stability of the entire treatment process and the high standard of effluent water quality. The conveyor belt is driven by a motor to rotate, so that the conveyor belt can convey the larger impurities in the seawater in the water tank to the slag discharge box, while the seawater and the smaller impurities will pass through the filter holes on the conveyor belt and flow to the ultrafiltration membrane filtration mechanism and the hollow fiber membrane filtration mechanism under the action of the water pump, so as to be further filtered and desalinated;

[0022] 2. The ultrafiltration membrane and hollow fiber membrane combined seawater desalination treatment equipment described in the present invention can clean up the impurities attached to the surface of the conveyor belt through the cleaning roller arranged in the pretreatment mechanism, thereby ensuring the cleanliness of the conveyor belt and allowing the conveyor belt to operate continuously and effectively. In addition, through the design of the first gear, the second gear and the third gear, when the motor is turned on, it can drive the cleaning roller to rotate at the same time, so that the cleaning roller can smoothly clean up the impurities attached to the surface of the conveyor belt. At the same time, the diameter of the first gear is set larger than the diameter of the third gear, so that when the first gear rotates one circle, the third gear will rotate more circles, so that the rotation speed of the cleaning roller is faster than the rotation speed of the conveyor belt, which means that in the same time, the cleaning roller can contact and clean the impurities on the conveyor belt more frequently, which helps to reduce the residence time of impurities on the conveyor belt and prevent impurities from accumulating and causing secondary pollution.

[0023] 3. The ultrafiltration membrane and hollow fiber membrane combined seawater desalination treatment equipment described in the present invention can efficiently remove suspended particles, organic matter, heavy metal ions and other tiny impurities in water through the design of the ultrafiltration membrane filtering mechanism, while retaining minerals and trace elements beneficial to the human body, making the purified water healthier and safer. Through the design of the hollow fiber membrane filtering mechanism, it can further remove tiny impurities such as particles, colloids, bacteria, viruses, high-molecular organic matter in water, thereby improving the purity of water quality. By combining the ultrafiltration membrane filtering mechanism and the hollow fiber membrane filtering mechanism, multi-stage filtration can be achieved, thereby improving the overall filtration accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below in conjunction with the accompanying drawings.

[0025] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0026] Figure 2 yes Figure 1 Another perspective structural diagram of;

[0027] Figure 3 It is a schematic diagram of the structure of the pretreatment mechanism in the present invention;

[0028] Figure 4 yes Figure 3 Another perspective structural diagram of;

[0029] Figure 5 It is a schematic diagram of the side cross-section structure of the water tank and the slag discharge box in the present invention;

[0030] Figure 6 It is a schematic diagram of the conveyor belt structure in the present invention;

[0031] Figure 7 It is a schematic diagram of the structure of the ultrafiltration membrane filtration mechanism in the present invention;

[0032] Figure 8 It is a schematic diagram of the side cross-sectional structure of the filter tank in the present invention;

[0033] Fig. 9 yes Figure 8 Another perspective structural diagram of;

[0034] Fig.10 It is a schematic diagram of the structure of the hollow fiber membrane filtration mechanism in the present invention.

[0035] In the figure: 1, pretreatment mechanism; 101, water tank; 102, slag discharge box; 103, conveyor belt; 104, water pump; 105, first transmission shaft; 106, second transmission shaft; 107, bump; 108, water inlet; 109, receiving hopper; 110, first connecting pipe; 111, first supporting leg; 112, motor; 113, cleaning roller; 114, first gear; 115, second gear; 116, third gear; 117. Slag discharge port; 118. Filter hole; 2. Ultrafiltration membrane filtering mechanism; 201. Filter tank; 202. Ultrafiltration membrane filter plate; 203. Top cover; 204. Second connecting pipe; 205. Holder; 206. Slot; 207. Second supporting leg; 3. Hollow fiber membrane filtering mechanism; 301. First water storage pipe; 302. Hollow fiber membrane filtering pipe; 303. Second water storage pipe; 304. Drain pipe; 305. Support frame. DETAILED DESCRIPTION

[0036] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0037] like Figures 1 to 10 As shown, an ultrafiltration membrane and hollow fiber membrane combined seawater desalination treatment equipment described in an embodiment of the present invention comprises: a pretreatment mechanism 1; the pretreatment mechanism 1 comprises a water tank 101, a conveyor belt 103 and a slag box 102, one end of the water tank 101 is fixedly connected to the slag box 102, one end of the inner wall of the water tank 101 is rotatably connected to the conveyor belt 103, one end of the conveyor belt 103 extends to the inside of the slag box 102 and is rotatably connected to the slag box 102, the conveyor belt 103 is located at one end of the slag box 102 higher than one end of the water tank 101, a plurality of filter holes 118 are arranged on the surface of the conveyor belt 103, the filter holes 118 are evenly distributed on the surface of the conveyor belt 103 in a linear array, and the bottom of the water tank 101 is connected to a water pump 104; the conveyor belt 103 is located at one end of the water tank 101 and is provided with a first transmission shaft 105, and the first transmission shaft 105 is rotatably connected to the water tank 101; the conveyor belt 103 is located at one end of the slag box 102 and is provided with a second transmission shaft 106, and the second transmission shaft 106 is rotatably connected to the slag box 102; a motor 112 is fixedly connected to one end of the side wall of the slag box 102, and the output end of the motor 112 is fixedly connected to the second transmission shaft 106; a water inlet 108 is provided at one end of the top of the water tank 101, and a receiving hopper 109 is fixedly connected to the inner wall of the water tank 101 at the water inlet 108, and the receiving hopper 109 is arranged in an inverted cone shape; four first supporting legs 111 are fixedly connected to the bottom of the water tank 101, and a slag discharge port 117 is provided at one end of the bottom of the slag box 102;

[0038] In this embodiment, when in use, the seawater to be desalinated is first poured into the water tank 101 from the water inlet 108. During this process, the seawater will accurately fall onto the conveyor belt 103 under the guidance of the receiving hopper 109. At this time, the water content and impurities with smaller volume in the seawater will pass through the filter holes 118 on the conveyor belt 103 and fall to the bottom of the water tank 101, while the impurities with larger volume in the seawater will be intercepted by the conveyor belt 103. At this time, the motor 112 is turned on, and the second transmission shaft 106 will rotate under the drive of the motor 112, thereby driving the conveyor belt 103 and the first transmission shaft 105 to rotate, so that the conveyor belt 103 can remove the impurities. Conveying allows the conveyor belt 103 to smoothly convey the impurities to the slag box 102. After the impurities are conveyed to the slag box 102, they will be discharged through the slag outlet 117. By locating one end of the conveyor belt 103 in the slag box 102 higher than one end of the water tank 101, the output end of the conveyor belt 103 can always be higher than the water level of the seawater in the water tank 101, so that the conveyor belt 103 can smoothly convey the impurities to the slag box 102. The design of the pretreatment mechanism 1 can remove most of the impurities, providing relatively clean water for subsequent treatment steps such as membrane filtration, which helps to ensure the stability of the entire treatment process and the high standard of effluent water quality.

[0039] The ultrafiltration membrane filtering mechanism 2 is arranged adjacent to the pretreatment mechanism 1 and is connected to the pretreatment mechanism 1; the ultrafiltration membrane mechanism comprises a filter tank 201 and an ultrafiltration membrane filter plate 202, the filter tank 201 is connected to the output end of the water pump 104, the ultrafiltration membrane filter plate 202 is arranged inside the filter tank 201, and the bottom of the filter tank 201 is arranged in an inverted cone shape;

[0040] In this embodiment, when the seawater is treated by the pretreatment mechanism 1, the water pump 104 is turned on. Under the action of the water pump 104, the seawater will flow into the ultrafiltration membrane filtration mechanism 2 and be filtered by the ultrafiltration membrane filter plate 202 in the ultrafiltration membrane filtration mechanism 2. The design of the ultrafiltration membrane filtration mechanism 2 can efficiently remove tiny impurities such as suspended particles, organic matter, heavy metal ions, etc. in the water, while retaining minerals and trace elements that are beneficial to the human body, making the purified water healthier and safer.

[0041] It also includes a hollow fiber membrane filtration mechanism 3, which includes a support frame 305, a first water storage pipe 301, a hollow fiber membrane filtration pipe 302, and a second water storage pipe 303. The top of the support frame 305 is fixedly connected with the first water storage pipe 301, the first water storage pipe 301 is connected to the bottom of the filtration tank 201, the two ends of the first water storage pipe 301 are respectively connected to five hollow fiber membrane filtration pipes 302, the bottom of the hollow fiber membrane filtration pipe 302 is connected to the second water storage pipe 303, and one end of the second water storage pipe 303 is connected to a drain pipe 304;

[0042] In this embodiment, after the seawater is filtered by the ultrafiltration membrane filtration mechanism 2, it will flow into the first water storage pipe 301 in the hollow fiber membrane filtration mechanism 3. Then the seawater in the first water storage pipe 301 will be diverted to ten hollow fiber membrane filtration tubes 302 for filtration. The filtered seawater completes the entire desalination process. The desalinated seawater will flow into the second water storage pipe 303 and finally be discharged from the drain pipe 304 at one end of the second water storage pipe 303. Through the design of the hollow fiber membrane filtration mechanism 3, tiny impurities such as particles, colloids, bacteria, viruses, and high molecular organic matter in the water can be further removed to improve the purity of the water quality. By combining the ultrafiltration membrane filtration mechanism 2 and the hollow fiber membrane filtration mechanism 3, multi-stage filtration can be achieved, thereby improving the overall filtration accuracy.

[0043] like Figure 3 and Figure 5 As shown, the interior of the slag box 102 is located below the conveyor belt 103 and is rotatably connected to a cleaning roller 113, and a plurality of bristles are arranged on the surface of the cleaning roller 113; the outer wall of the slag box 102 is located at one end of the second transmission shaft 106 and is rotatably connected to a first gear 114, the input shaft of the first gear 114 is fixedly connected to the second transmission shaft 106, the bottom of the first gear 114 is meshedly connected to a second gear 115, the second gear 115 is rotatably connected to the slag box 102, the outer wall of the slag box 102 is located at one end of the cleaning roller 113 and is rotatably connected to a third gear 116, the input shaft of the third gear 116 is fixedly connected to the cleaning roller 113, the third gear 116 is meshedly connected to the second gear 115, the diameter of the first gear 114 is larger than the diameter of the second gear 115, and the diameter of the second gear 115 is larger than the diameter of the third gear 116;

[0044] In this embodiment, the design of the cleaning roller 113 can clean up impurities attached to the surface of the conveyor belt 103, thereby ensuring the cleanliness of the conveyor belt 103 and allowing the conveyor belt 103 to operate continuously and effectively. In addition, the design of the first gear 114, the second gear 115 and the third gear 116 allows the motor 112 to simultaneously drive the cleaning roller 113 to rotate when it is turned on, so that the cleaning roller 113 can smoothly clean up impurities attached to the surface of the conveyor belt 103. At the same time, the diameter of the first gear 114 is set to be larger than the diameter of the third gear 116. In this way, when the first gear 114 rotates one circle, the third gear 116 will rotate more circles, so that the rotation speed of the cleaning roller 113 is faster than the rotation speed of the conveyor belt 103. This means that in the same amount of time, the cleaning roller 113 can contact and clean impurities on the conveyor belt 103 more frequently, which helps to reduce the residence time of impurities on the conveyor belt 103 and prevent impurities from accumulating and causing secondary pollution.

[0045] like Figure 6As shown, a plurality of protrusions 107 are fixedly connected to the surface of the conveyor belt 103. The protrusions 107 are evenly distributed on the surface of the conveyor belt 103 in a linear array and are located between two adjacent filter holes 118.

[0046] In this embodiment, since the conveyor belt 103 is arranged at an angle, in order to prevent impurities from rolling on the conveyor belt 103 or sliding toward one end of the water tank 101, the design of the protrusion 107 can increase the friction of the conveyor belt 103, so that the conveyor belt 103 can stably transport the impurities to the slag box 102.

[0047] like Figure 1 and Figure 7 As shown, the output end of the water pump 104 is connected to the first connecting pipe 110, the first connecting pipe 110 is connected to the side wall of the filter tank 201, the output end of the first connecting pipe 110 is located above the ultrafiltration membrane filter plate 202, the top of the filter tank 201 is provided with a top cover 203, the bottom of the filter tank 201 is fixedly connected to four second supporting legs 207, the bottom of the filter tank 201 is connected to the second connecting pipe 204, and the second connecting pipe 204 is connected to the first water storage pipe 301;

[0048] In this embodiment, the design of the first connecting pipe 110 allows the filter tank 201 to be smoothly connected to the output end of the water pump 104, the design of the second connecting pipe 204 allows the first water storage pipe 301 to be smoothly connected to the filter tank 201, and the design of the top cover 203 makes it easy for staff to clean and repair the inside of the filter tank 201.

[0049] like Figures 8 to 9 As shown, four holders 205 are fixedly connected to one end of the inner wall of the filter tank 201, and four slots 206 are provided at the bottom of the ultrafiltration membrane filter plate 202, and the holders 205 are movably connected with the slots 206;

[0050] In this embodiment, the design of the card slot 206 and the card seat 205 allows the ultrafiltration membrane filter plate 202 to be quickly disassembled and assembled, thereby making it convenient for the staff to clean and replace the ultrafiltration membrane filter plate 202.

[0051] Working principle: When in use, first pour the seawater to be desalinated into the water tank 101 from the water inlet 108. During this process, the seawater will accurately fall onto the conveyor belt 103 under the guidance of the receiving hopper 109. At this time, the water content and smaller impurities in the seawater will pass through the filter holes 118 on the conveyor belt 103 and fall to the bottom of the water tank 101, while the larger impurities in the seawater will be intercepted by the conveyor belt 103. At this time, turn on the motor 112, and the second transmission shaft 106 will rotate under the drive of the motor 112, thereby driving the conveyor belt 103 and the first transmission shaft 105 to rotate, so that the conveyor belt 103 can transport the impurities. , so that the conveyor belt 103 can smoothly transport the impurities to the slag box 102. After the impurities are transported to the slag box 102, they will be discharged through the slag outlet 117. When the motor 112 is turned on, it will drive the second transmission shaft 106 at one end of the conveyor belt 103 to rotate, thereby driving the first gear 114 to rotate, and then driving the second gear 115 to rotate. When the second gear 115 rotates, it will drive the third gear 116 at one end of the cleaning roller 113 to rotate, so that the cleaning roller 113 can smoothly clean up the impurities attached to the surface of the conveyor belt 103. At the same time, the diameter of the first gear 114 is set larger than the diameter of the third gear 116. When the first gear 114 rotates one circle, the third gear 116 will rotate more circles, so that the rotation speed of the cleaning roller 113 is faster than the rotation speed of the conveyor belt 103, which means that in the same time, the cleaning roller 113 can contact and clean the impurities on the conveyor belt 103 more frequently, which helps to reduce the residence time of impurities on the conveyor belt 103, prevent impurities from accumulating and causing secondary pollution. When the seawater passes through the conveyor belt 103 and enters the bottom of the water tank 101, the water pump 104 is turned on at this time. Under the action of the water pump 104, the seawater will flow into the filter tank 201 through the first connecting pipe 110 and be filtered by the ultrafiltration membrane filter plate 2 in the filter tank 201. 02 filtration, thereby removing suspended particles, organic matter, heavy metal ions and other tiny impurities in the water. The seawater filtered by the ultrafiltration membrane filter plate 202 will flow into the first water storage pipe 301 through the second connecting pipe 204, and then the seawater in the first water storage pipe 301 will be diverted to ten hollow fiber membrane filter tubes 302 for filtration, thereby further removing micro impurities such as particles, colloids, bacteria, viruses, high molecular organic matter and so on in the water, thereby improving the purity of the water quality. The filtered seawater completes the entire desalination process, and the desalinated seawater will flow into the second water storage pipe 303, and finally be discharged from the drain pipe 304 at one end of the second water storage pipe 303.

[0052] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A seawater desalination treatment device combining an ultrafiltration membrane and a hollow fiber membrane, comprising: Pretreatment mechanism (1); An ultrafiltration membrane filtering mechanism (2) is arranged adjacent to the pretreatment mechanism (1) and is in communication with the pretreatment mechanism (1); Features: The pretreatment mechanism (1) comprises a water tank (101), a conveyor belt (103) and a slag discharge box (102); one end of the water tank (101) is fixedly connected to the slag discharge box (102); one end of the inner wall of the water tank (101) is rotatably connected to the conveyor belt (103); one end of the conveyor belt (103) extends into the interior of the slag discharge box (102) and is rotatably connected to the slag discharge box (102); one end of the conveyor belt (103) is located at a higher end than one end of the water tank (101); a plurality of filter holes (118) are provided on the surface of the conveyor belt (103); the filter holes (118) are evenly distributed on the surface of the conveyor belt (103) in a linear array; and the bottom of the water tank (101) is connected to a water pump (104); The ultrafiltration membrane mechanism comprises a filter tank (201) and an ultrafiltration membrane filter plate (202); the filter tank (201) is in communication with an output end of a water pump (104); an ultrafiltration membrane filter plate (202) is arranged inside the filter tank (201); and the bottom of the filter tank (201) is arranged in an inverted cone shape; It also comprises a hollow fiber membrane filtration mechanism (3), the hollow fiber membrane filtration mechanism (3) comprising a support frame (305), a first water storage pipe (301), a hollow fiber membrane filtration pipe (302) and a second water storage pipe (303), the top of the support frame (305) is fixedly connected with the first water storage pipe (301), the first water storage pipe (301) is connected to the bottom of the filtration tank (201), the two ends of the first water storage pipe (301) are respectively connected to five hollow fiber membrane filtration pipes (302), the bottom of the hollow fiber membrane filtration pipe (302) is connected to the second water storage pipe (303), and one end of the second water storage pipe (303) is connected to a drainage pipe (304).

2. The ultrafiltration membrane and hollow fiber membrane combined seawater desalination treatment equipment according to claim 1, characterized in that: The conveyor belt (103) is located at one end of the water tank (101) and is provided with a first transmission shaft (105), and the first transmission shaft (105) is rotatably connected to the water tank (101); the conveyor belt (103) is located at one end of the slag discharge box (102) and is provided with a second transmission shaft (106), and the second transmission shaft (106) is rotatably connected to the slag discharge box (102); a motor (112) is fixedly connected to one end of the side wall of the slag discharge box (102), and the output end of the motor (112) is fixedly connected to the second transmission shaft (106).

3. The ultrafiltration membrane and hollow fiber membrane combined seawater desalination treatment equipment according to claim 2, characterized in that: A cleaning roller (113) is rotatably connected to the interior of the slag discharge box (102) below the conveyor belt (103), and a plurality of bristles are arranged on the surface of the cleaning roller (113).

4. The ultrafiltration membrane and hollow fiber membrane combined seawater desalination treatment equipment according to claim 3, characterized in that: The outer wall of the slag discharge box (102) is located at one end of the second transmission shaft (106) and is rotatably connected to a first gear (114); an input shaft of the first gear (114) is fixedly connected to the second transmission shaft (106); a second gear (115) is meshedly connected at the bottom of the first gear (114); the second gear (115) is rotatably connected to the slag discharge box (102); an outer wall of the slag discharge box (102) is located at one end of the cleaning roller (113) and is rotatably connected to a third gear (116); an input shaft of the third gear (116) is fixedly connected to the cleaning roller (113); the third gear (116) is meshedly connected to the second gear (115); a diameter of the first gear (114) is greater than a diameter of the second gear (115); and a diameter of the second gear (115) is greater than a diameter of the third gear (116).

5. The ultrafiltration membrane and hollow fiber membrane combined seawater desalination treatment equipment according to claim 4, characterized in that: A plurality of protrusions (107) are fixedly connected to the surface of the conveyor belt (103); the protrusions (107) are evenly distributed on the surface of the conveyor belt (103) in a linear array and are located between two adjacent filter holes (118).

6. The ultrafiltration membrane and hollow fiber membrane combined seawater desalination treatment equipment according to claim 1, characterized in that: A water inlet (108) is provided at one end of the top of the water tank (101); a receiving hopper (109) is fixedly connected to the inner wall of the water tank (101) at the water inlet (108); the receiving hopper (109) is arranged in an inverted cone shape; four first supporting legs (111) are fixedly connected to the bottom of the water tank (101); and a slag discharge port (117) is provided at one end of the bottom of the slag discharge box (102).

7. The ultrafiltration membrane and hollow fiber membrane combined seawater desalination treatment equipment according to claim 1, characterized in that: The output end of the water pump (104) is connected to a first connecting pipe (110), the first connecting pipe (110) is connected to a side wall of the filter tank (201), the output end of the first connecting pipe (110) is located above the ultrafiltration membrane filter plate (202), a top cover (203) is provided on the top of the filter tank (201), four second supporting legs (207) are fixedly connected to the bottom of the filter tank (201), the bottom of the filter tank (201) is connected to a second connecting pipe (204), and the second connecting pipe (204) is connected to the first water storage pipe (301).

8. The ultrafiltration membrane and hollow fiber membrane combined seawater desalination treatment equipment according to claim 1, characterized in that: Four clamping seats (205) are fixedly connected to one end of the inner wall of the filter tank (201), and four clamping slots (206) are provided at the bottom of the ultrafiltration membrane filter plate (202), and the clamping seats (205) are movably clamped with the clamping slots (206).

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