Environment-friendly pollutant treatment equipment for leather production

Abstract

The invention relates to the technical field of sewage treatment, in particular to environment-friendly pollutant treatment equipment for leather production, which comprises a frame, a hollow pipe, a conveying pipe and hollow fiber membrane filaments, the frame is fixedly connected with a plurality of hollow pipes; each hollow pipe is fixedly connected with a conveying pipe, and the two hollow pipes which are opposite to each other up and down are jointly connected with a plurality of hollow fiber membrane filaments; the device further comprises a connecting pipe and the like. Each hollow pipe is communicated with a plurality of connecting pipes; and the hollow fiber membrane filaments are detachably connected with the connecting pipes. When the hollow fiber membrane filaments are suddenly damaged or broken, the connecting pipe is sealed in time through the plugging block under the action of pressurized water flow, external sewage is timely prevented from entering the connecting pipe through the damaged or broken hollow fiber membrane filaments, and serious pollution of pre-purified water caused by the fact that the sewage is not purified is reduced; and serious pollution of a connecting pipe, a hollow pipe, a conveying pipe and an external pump machine is caused.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and in particular to an environmentally friendly pollutant treatment device for leather production. Background Art

[0002] During the pre-tanning, tanning and finishing stages of leather production, a large amount of wastewater containing chemical substances and leather impurities will be generated. In actual production work, wastewater treatment equipment is required to purify the wastewater. The Chinese patent publication number CN119660951A discloses an integrated wastewater treatment membrane bioreactor and a wastewater treatment method, which can achieve a pair of splints that move in coordination after the membrane wire breaks to clamp the root of the membrane wire, so that the membrane wire is sealed after breaking, thereby preventing wastewater from entering the membrane wire without being filtered through the filter holes and contaminating the entire membrane treatment unit.

[0003] However, the above device can only be sealed when the membrane filaments are completely broken, and the membrane filaments are often not broken instantly. Instead, the gaps gradually expand after long-term use, and finally lead to breakage. When the membrane filaments are damaged but not yet broken, the external sewage has already entered the membrane filaments through the broken gaps and caused pollution, resulting in contamination of the sewage treatment equipment and the pre-purified sewage, affecting the pollution treatment. Summary of the Invention

[0004] In order to overcome the shortcomings of the existing technology that sealing can only be performed when the membrane filaments are completely broken, resulting in sewage entering the interior of the membrane filaments through the broken gaps when the membrane filaments are damaged and causing pollution, resulting in pollution of the sewage treatment equipment and pre-purified sewage, the present invention provides an environmentally friendly pollutant treatment equipment for leather production.

[0005] The technical solution is: an environmentally friendly pollutant treatment equipment for leather production, including a frame, a hollow tube, a delivery tube and a hollow fiber membrane; the frame is fixed with a plurality of hollow tubes; each hollow tube is fixed with a delivery tube, and two hollow tubes facing each other are connected with a plurality of hollow fiber membranes; it also includes a connecting tube, a spring rod I, a blocking block, a locking rod, an elastic telescopic rod and a limit block; each hollow tube is connected with a plurality of connecting tubes; the hollow fiber membrane is detachably connected to the connecting tube; each connecting tube has a An annular groove, each connecting tube is fixed with several spring rods I; the telescopic ends of all spring rods I on the same connecting tube are fixed with a blocking block, and the blocking blocks are located in the corresponding annular groove; each blocking block is fixed with several locking rods on the side facing the hollow tube; each locking rod is provided with several notches; each connecting tube is provided with several two slide grooves; each slide groove is fixed with an elastic telescopic rod; the telescopic end of each elastic telescopic rod is fixed with a limit block, and the limit block faces the corresponding locking rod.

[0006] As a further preferred solution, a water flow sensor is also included; each connecting pipe is fixed with a water flow sensor, and the water flow sensor is located between the hollow fiber membrane and the blocking block.

[0007] As a further preferred solution, a sensor is also included; each connecting pipe is fixed with a sensor, and the sensor is located between the hollow tube and the blocking block.

[0008] As a further preferred solution, a pull ring is also included; each blocking block is fixed with a pull ring.

[0009] As a further preferred solution, a rubber ring is further included; a rubber ring is fixedly connected to one side of each sealing block close to the hollow tube.

[0010] As a further preferred solution, the upper side of the blocking block is configured to be conical.

[0011] As a further preferred solution, the cross section of the notch is triangular, and the cross section of the limiting block is adapted to the shape of the cross section of the notch.

[0012] As a further preferred solution, the blocking block is made of alloy material.

[0013] As a further preferred solution, a one-way valve is also included; each blocking block is fixedly connected to a plurality of one-way valves.

[0014] As a further preferred embodiment, it also includes a spring rod II, a support ring, an annular baffle I and annular baffle II; each sealing block is provided with a flow groove; each connecting tube is fixed with a number of spring rods II; the telescopic ends of all spring rods II on each connecting tube are fixed with a support ring, and the support ring is in contact with the inner wall of the corresponding annular groove; each support ring is fixed with a number of inclined annular baffles I; each sealing block has a flow groove fixed with a number of annular baffles II with an inclination opposite to that of the annular baffle I; all annular baffles II and all annular baffles I located in the same connecting tube are staggered.

[0015] The present invention has the following advantages: when the hollow fiber membrane is suddenly damaged or broken, the connecting pipe is sealed in time by the sealing block under the action of the pressurized water flow, and the external sewage is cut off from entering the connecting pipe through the damaged or broken hollow fiber membrane in time, thereby reducing the serious pollution of the pre-clean water caused by the unpurified sewage, and reducing the problem of serious pollution of the connecting pipe, hollow pipe, delivery pipe and external pump.

[0016] The sewage is diverted through the deflection channel formed by the annular baffle I and the annular baffle II to increase the retention time of the sewage. At the same time, when the blocking block moves to re-close the connecting pipe, the blocking block first drives the annular baffle II to contact the annular baffle I, and quickly closes the deflection channel to prevent the sewage from continuing to flow into the hollow pipe through the connecting pipe, and to prevent the sewage from flowing into the hollow pipe and the delivery pipe, causing pollution of the pre-cleaned water, and causing pollution problems in the hollow pipe, delivery pipe and external pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the environmentally friendly pollutant treatment equipment for leather production disclosed in the present invention; Figure 2 It is a partial structural diagram of the hollow tube, delivery tube, connecting tube and hollow fiber membrane assembly disclosed in the present invention; Figure 3 A cross-sectional view of the hollow tube and connecting tube combination disclosed in the present invention; Figure 4 A schematic diagram of the internal structure of the connecting pipe disclosed in the present invention from a first viewing angle; Figure 5 This is a schematic diagram of the internal structure of the connecting pipe disclosed in the present invention from a second perspective.

[0018] Among them: 1-frame, 101-hollow tube, 102-delivery tube, 103-connecting tube, 104-hollow fiber membrane, 105-spring rod I, 106-sealing block, 107-locking rod, 108-limiting block, 109-water flow sensor, 1010-pull ring, 1011-rubber ring, 1012-sensor, 1013-elastic telescopic rod, 201-check valve, 202-spring rod II, 203-support ring, 204-annular baffle I, 205-annular baffle II, 1031-annular groove, 1032-slide groove, 1061-circulation groove, 1071-notch. DETAILED DESCRIPTION

[0019] The present invention will be further described below with reference to specific embodiments. It should be noted that, unless otherwise specified or limited, terms such as "dispose," "install," "connect," and "connect" should be understood in a broad sense. For example, "connect" may refer to a fixed connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; or it may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0020] Example 1, an environmentally friendly treatment device for pollutants used in leather production, such as Figure 1-Figure 5As shown, it includes a frame 1, a hollow tube 101, a delivery tube 102 and a hollow fiber membrane filament 104; the frame 1 is fixedly connected to a plurality of hollow tubes 101; each hollow tube 101 is fixedly connected to and communicates with a delivery tube 102, and two hollow tubes 101 facing each other are commonly connected to a plurality of hollow fiber membrane filaments 104; It also includes a connecting tube 103, a spring rod I 105, a blocking block 106, a locking rod 107, an elastic telescopic rod 1013 and a limit block 108; each hollow tube 101 is connected to a plurality of connecting tubes 103; the hollow fiber membrane 104 is detachably connected to the connecting tube 103; each connecting tube 103 has an annular groove 1031, and each connecting tube 103 is fixed with two spring rods I 105; the telescopic ends of all spring rods I 105 on the same connecting tube 103 are fixed with a blocking block 106 , and the blocking block 106 is located in the corresponding annular groove 1031; each blocking block 106 is fixedly connected to a plurality of locking rods 107 on the side facing the hollow tube 101; each locking rod 107 is provided with a plurality of vertically distributed notches 1071; each connecting tube 103 is provided with a plurality of two sliding grooves 1032; each sliding groove 1032 is fixedly connected to an elastic telescopic rod 1013; each elastic telescopic rod 1013 is fixedly connected to a limit block 108 at its telescopic end, and the limit block 108 faces the corresponding locking rod 107.

[0021] It also includes a water flow sensor 109 ; each connecting pipe 103 is fixed with a water flow sensor 109 , and the water flow sensor 109 is located between the hollow fiber membrane 104 and the blocking block 106 .

[0022] The device further includes a sensor 1012 ; each connecting tube 103 is fixed with a sensor 1012 , and the sensor 1012 is located between the hollow tube 101 and the blocking block 106 .

[0023] A pull ring 1010 is also included; each blocking block 106 is fixed with a pull ring 1010, which facilitates the operator to pull the blocking block 106 through the pull ring 1010.

[0024] It also includes a rubber ring 1011; each sealing block 106 is fixedly connected to one side of the hollow tube 101 with a rubber ring 1011. When the sealing block 106 moves and contacts the annular groove 1031, the rubber ring 1011 contacts the inner wall of the annular groove 1031, thereby enhancing the sealing between the sealing block 106 and the annular groove 1031 and improving the sealing effect.

[0025] The upper side of the blocking block 106 is arranged in a cone shape to guide the water flow and reduce the obstruction of the blocking block 106 to the water flow.

[0026] The cross section of the notch 1071 is triangular, and the cross section of the limiting block 108 is adapted to the cross section of the notch 1071 , thereby reducing friction resistance and facilitating separation of the notch 1071 from the limiting block 108 .

[0027] The blocking block 106 is made of alloy material to ensure the service life of the blocking block 106 .

[0028] The frame 1 and all the hollow fiber membranes 104 thereon together constitute a sewage purification treatment module. Multiple sewage purification treatment modules can be set in the same sewage treatment equipment, and the multiple sewage purification treatment modules are connected in series through pipelines.

[0029] After the leather wastewater has been pre-treated and the soluble chemicals, dissolved salts and small molecular organic matter in the leather wastewater have been removed, the wastewater is discharged into the chamber where the wastewater purification module is located. At this time, the external pump generates suction force on the connecting pipe 103 through the delivery pipe 102. Since the initial blocking block 106 is under the action of the spring rod I 105, the upper end face of the blocking block 106 blocks the connecting pipe 103. Therefore, when the external pump is started, the suction force generated by the connecting pipe 103 will first force the blocking block 106 to move, and the spring rod I 105 is forced to stretch, so that the connecting pipe 103 is opened, and the suction force generated by the external pump can act on the hollow fiber membrane 104 through the annular groove 1031, sucking the hollow fiber membrane 104, so that the pretreated sewage enters the hollow fiber membrane 104 through the micropores on the hollow fiber membrane 104, and the hollow fiber membrane 104 intercepts impurities in the sewage, and then the filtered clean water is discharged to the subsequent treatment equipment (waiting for discharge in the temporary storage tank) through the connecting pipe 103, the hollow tube 101, the delivery pipe 102 and the external pump.

[0030] It should be noted that, during the movement of the blocking block 106, the blocking block 106 drives the locking rod 107 to move synchronously, and the locking rod 107 applies pressure to the limit block 108, forcing the elastic telescopic rod 1013 to compress and the limit block 108 to retract into the corresponding slide groove 1032. When the notch 1071 on the locking rod 107 is aligned with the limit block 108, as shown in FIG. Figure 4 As shown, the elastic telescopic rod 1013 pushes the limit block 108 to fit into the notch 1071 of the locking rod 107, and the limit block 108 cooperates with the locking rod 107 to restrict the blocking block 106, thereby preventing the blocking block 106 from moving and re-closing the connecting pipe 103, thereby affecting the filtration and purification of sewage.

[0031] Taking into account that the hollow fiber membrane 104 is easily affected by impurities in sewage and may be damaged or even broken under long-term use, when the hollow fiber membrane 104 is suddenly damaged or broken, the amount of water entering the hollow fiber membrane 104 increases due to the pressure difference between the inside and the outside. At this time, the water pressure entering the connecting pipe 103 increases. At this time, the blocking block 106 is further pushed to move by the pressurized water flow. The blocking block 106 drives the locking rod 107 to move again, and the locking rod 107 forces the limit block 108 to retract to the corresponding sliding block again. In the groove 1032, the elastic telescopic rod 1013 is compressed, and the notch 1071 on the locking rod 107 that was originally engaged with the limit block 108 is disengaged until the blocking block 106 closes the connecting pipe 103. The limit block 108 is stuck in the notch 1071 of the locking rod 107 closest to the blocking block 106, and timely cuts off the sewage from entering the connecting pipe 103 through the damaged or broken hollow fiber membrane 104, reducing the serious pollution of the pre-clean water caused by the unpurified sewage, and causing serious pollution problems in the connecting pipe 103, the hollow pipe 101, the delivery pipe 102 and the external pump.

[0032] When the hollow fiber membrane 104 is filtering the pre-treated leather wastewater, the outer hollow fiber membrane 104 on the single wastewater purification module is easily clogged by impurities. At this time, it is difficult for the wastewater to be filtered through the clogged hollow fiber membrane 104. At this time, the water flow in the connecting pipe 103 corresponding to the clogged hollow fiber membrane 104 is reduced or even no water passes through. When the water flow sensor 109 in the connecting pipe 103 detects a serious change in the water flow, the water flow sensor 109 sends a prompt to the control end (computer), and the control end displays and locates the clogged wastewater purification module. It prompts the operator to perform maintenance and inspection operations, and is convenient for the operator to quickly locate the hollow fiber membrane filaments 104 to be inspected, thereby improving the maintenance and inspection efficiency; when the hollow fiber membrane filaments 104 are damaged or broken, the blocking block 106 is pushed by the water flow to move to the side away from the hollow fiber membrane filaments 104, and after the blocking block 106 contacts the sensor 1012, the sensor 1012 is triggered, and the sensor 1012 sends a prompt to the control end (computer), and the control end displays the location of the damaged sewage purification treatment module, which is convenient for the operator to replace the damaged hollow fiber membrane filaments 104 in time.

[0033] After the operator disassembles the damaged hollow fiber membrane 104, the operator reaches into the connecting tube 103 with an external tool (hook) to hook the pull ring 1010 and pull it upward. The pull ring 1010 drives the blocking block 106 and the locking rod 107 to move upward until the locking rod 107 is away from the limit block 108. The spring rod I 105 drives the blocking block 106 to re-close the connecting tube 103.

[0034] Example 2, based on Example 1, Figure 4 and Figure 5As shown, a one-way valve 201 is also included; each blocking block 106 is fixedly connected to a plurality of one-way valves 201, and the one-way valve 201 only allows backflushing water to pass through.

[0035] It also includes a spring rod II 202, a support ring 203, an annular baffle I 204 and an annular baffle II 205; each blocking block 106 is provided with a flow groove 1061; each connecting tube 103 is fixed with a number of spring rods II 202; the telescopic ends of all spring rods II 202 on each connecting tube 103 are fixed with a support ring 203, and the support ring 203 is in contact with the inner wall of the corresponding annular groove 1031; each support ring 203 is fixed with a number of inclined annular baffles I 204; each blocking block 106 has a number of annular baffles II 205 with an inclination opposite to that of the annular baffle I 204 fixed at the flow groove 1061; all annular baffles II 205 and all annular baffles I 204 located in the same connecting tube 103 are staggered.

[0036] When the hollow fiber membrane 104 is clogged with impurities and the water flow sensor 109 detects a serious change in water flow, the external pump is first controlled to deliver clean water in the temporary storage tank to the hollow tube 101 through the delivery pipe 102. The clean water enters the hollow fiber membrane 104 through several one-way valves 201 on the blocking block 106, and then sprays out from the micropores on the surface of the hollow fiber membrane 104 to backwash the impurities on the surface of the hollow fiber membrane 104. After the backwash is completed, the external pump provides suction force to the hollow fiber membrane 104 again through the connecting pipe 103, the hollow tube 101 and the delivery pipe 102. If the water flow sensor 109 still detects a low water flow at this time, the operator will perform maintenance and inspection operations. If the water flow sensor 109 detects that the water flow is normal at this time, the operator will ignore the previous blockage prompt to ensure the normal use of the hollow fiber membrane 104 and avoid unnecessary maintenance and inspection operations.

[0037] Furthermore, considering that when the hollow fiber membrane 104 is damaged or even broken, although the blocking block 106 can block the connecting pipe 103, at this time, unpurified sewage has been discharged into the hollow tube 101 of the connecting pipe 103 and the delivery pipe 102, causing pollution of the pre-cleaned water, and causing pollution problems in the connecting pipe 103, the hollow tube 101, the delivery pipe 102 and the external pump; for this reason, when the sewage is filtered through the hollow fiber membrane 104 and enters the connecting pipe 103, the clean water passes through the deflection channel formed by the annular baffle Ⅰ 204 and the annular baffle Ⅱ 205, so that when the hollow fiber membrane 104 is damaged or broken, resulting in sewage entering the connecting pipe 103 without being purified, the sewage is deflected through the deflection channel formed by the annular baffle Ⅰ 204 and the annular baffle Ⅱ 205, thereby increasing the retention time of the sewage. At the same time, when the blocking block 106 moves to reclose the connecting pipe 103, the blocking block 106 first drives the annular baffle II 205 to contact the annular baffle I 204, and then the blocking block 106 drives the annular baffle I 204 to move downward through the annular baffle II 205, and the spring rod II 202 is forced to stretch. Since the distance between the annular baffle II 205 and the annular baffle I 204 is small, the baffle channel can be quickly closed when the blocking block 106 first drives the annular baffle II 205 to contact the annular baffle I 204. At the same time, the sewage is restricted in the baffle channel, and the retention time is extended, which can prevent the sewage from continuing to flow into the hollow pipe 101 through the connecting pipe 103, and prevent the sewage from flowing into the hollow pipe 101 and the delivery pipe 102, causing pollution of the pre-cleaned water, and causing pollution problems in the hollow pipe 101, the delivery pipe 102 and the external pump.

[0038] The technical principles of the embodiments of the present invention have been described above in conjunction with specific embodiments. These descriptions are intended solely to explain the principles of the embodiments of the present invention and should not be construed in any way as limiting the scope of protection of the embodiments of the present invention. Based on the explanations herein, those skilled in the art will be able to conceive of other specific implementations of the embodiments of the present invention without inventive effort, and such implementations will fall within the scope of protection of the embodiments of the present invention.

Claims

1. An environmentally friendly pollutant treatment device for leather production, comprising a frame (1); a plurality of hollow tubes (101) fixedly connected to the frame (1); each hollow tube (101) fixedly connected to a delivery pipe (102); two hollow tubes (101) facing each other vertically are commonly connected to a plurality of hollow fiber membranes (104); characterized in that: The invention also includes a connecting tube (103); each hollow tube (101) is connected to a plurality of connecting tubes (103); the hollow fiber membrane (104) is detachably connected to the connecting tube (103); each connecting tube (103) is provided with an annular groove (1031), and each connecting tube (103) is fixed with a plurality of spring rods I (105); the telescopic ends of all spring rods I (105) on the same connecting tube (103) are fixed with a blocking block (106), and the blocking block (106) is fixed with the corresponding annular groove. (1031); each blocking block (106) is fixedly connected to a plurality of locking rods (107) on one side facing the hollow tube (101); each locking rod (107) is provided with a plurality of notches (1071); each connecting tube (103) is provided with a plurality of two slide grooves (1032); each slide groove (1032) is fixedly connected to a resilient telescopic rod (1013); each retractable end of each resilient telescopic rod (1013) is fixedly connected to a limit block (108), and the limit block (108) faces the corresponding locking rod (107).

2. The environmentally friendly pollutant treatment equipment for leather production according to claim 1, characterized in that: It also includes a water flow sensor (109); each connecting pipe (103) is fixedly connected to a water flow sensor (109), and the water flow sensor (109) is located between the hollow fiber membrane (104) and the blocking block (106).

3. The environmentally friendly pollutant treatment equipment for leather production according to claim 2, characterized in that: It also includes a sensor (1012); each connecting tube (103) is fixedly connected to a sensor (1012), and the sensor (1012) is located between the hollow tube (101) and the blocking block (106).

4. The environmentally friendly pollutant treatment equipment for leather production according to claim 1, characterized in that: It also includes a pull ring (1010); each blocking block (106) is fixedly connected to a pull ring (1010).

5. The environmentally friendly pollutant treatment equipment for leather production according to claim 4, characterized in that: It also includes a rubber ring (1011); each sealing block (106) is fixedly connected to a rubber ring (1011) on one side close to the hollow tube (101).

6. The environmentally friendly pollutant treatment equipment for leather production according to claim 5, characterized in that: The upper side of the blocking block (106) is arranged in a conical shape.

7. The environmentally friendly pollutant treatment equipment for leather production according to claim 1, characterized in that: The cross section of the notch (1071) is triangular, and the cross section of the limiting block (108) is adapted to the cross section shape of the notch (1071).

8. The environmentally friendly pollutant treatment equipment for leather production according to claim 1, characterized in that: The blocking block (106) is made of alloy.

9. The environmentally friendly pollutant treatment equipment for leather production according to claim 8, characterized in that: It also includes a one-way valve (201); each blocking block (106) is fixedly connected to a plurality of one-way valves (201).

10. The environmentally friendly pollutant treatment equipment for leather production according to claim 9, characterized in that: The invention also includes a spring rod II (202); each blocking block (106) is provided with a flow groove (1061); each connecting tube (103) is fixed with a plurality of spring rods II (202); the telescopic ends of all spring rods II (202) on each connecting tube (103) are fixed with a support ring (203), and the support ring (203) contacts the inner wall of the corresponding annular groove (1031); each support ring (203) is fixed with a plurality of inclined annular baffles I (204); the flow groove (1061) of each blocking block (106) is fixed with a plurality of annular baffles II (205) with an inclination opposite to that of the annular baffles I (204); all the annular baffles II (205) and all the annular baffles I (204) located in the same connecting tube (103) are arranged in a staggered manner.

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