Solid-liquid separation equipment for sewage treatment

Abstract

The utility model relates to the technical field of sewage treatment, in particular to solid-liquid separation equipment for sewage treatment, which comprises a separation cylinder, a separation mechanism and a cleaning mechanism. When the connecting disc rotates, the first-stage separation net and the second-stage separation net are driven to rotate, so that the sewage is centrifugally moved to realize second-stage separation and filtration, and the solid-liquid separation effect of the sewage is improved; the air cylinder pushes the push plate and the push rod to move downwards in the vertical direction so as to push the first-stage scraping ring, the second-stage scraping ring and the connecting rod to move downwards so as to push the connecting disc to be separated from the chuck, and the lead screw drives the connecting disc to rotate and move downwards so as to drive the first-stage scraping ring, the second-stage scraping ring and the connecting rod to rotate and move downwards. And in the downward moving process of the first-stage scraping ring and the second-stage scraping ring, separated solid impurities on the inner sides of the first-stage separation net and the second-stage separation net are downwards scraped, the separated solid impurities are regularly removed, and the situation that the solid impurities block filtering holes and affect the separation effect is avoided.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a solid-liquid separation device for wastewater treatment. Background Technology

[0002] According to the patent document with publication number CN221432239U, this patent document describes a two-stage filtration method for filtering solid impurities in wastewater. The filter diameter of the first-stage solid-liquid separation screen in the first-stage solid-liquid separation unit is larger than that of the second-stage solid-liquid separation screen in the second-stage solid-liquid separation unit. This reduces the likelihood of large solid impurities clogging the small-aperture filter screen in single-stage filtration, thereby improving the efficiency of solid-liquid separation in wastewater. By setting up a first-stage and a second-stage debris flushing pipe, the separated solid impurities are discharged from the debris flushing pipe using wastewater, thus achieving the removal of solid impurities.

[0003] The patent document states that when removing solid impurities after separation, the method of flushing with sewage causes the solid impurities to re-encounter water and form a solid-liquid mixture in the sewage, which affects the solid-liquid separation effect of the sewage. Furthermore, during the flushing process, the solid impurities in the sewage itself will still remain on the solid-liquid separation screen, resulting in poor removal effect. Utility Model Content

[0004] The purpose of this invention is to provide a solid-liquid separation device for wastewater treatment in order to solve the above-mentioned problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A solid-liquid separation device for wastewater treatment includes a separation cylinder, a separation mechanism, and a cleaning mechanism;

[0007] The separation mechanism includes a lead screw, which is rotatably connected inside the separation cylinder. A motor is fixedly installed at the input end of the lead screw. A primary separation screen and a secondary separation screen are rotatably connected inside the separation cylinder. The secondary separation screen is located outside the primary separation screen. A chuck is fixed to the outside of the lead screw.

[0008] The cleaning mechanism includes a connecting plate, a chuck, a primary separation screen, and a secondary separation screen, all of which are inserted into the top of the connecting plate.

[0009] The connecting disc is threaded to the outside of the lead screw. A first-level scraping ring is provided on the inner top of the first-level separation net, and a second-level scraping ring is provided on the inner top of the second-level separation net. Two connecting rods are fixed between the first-level scraping ring and the second-level scraping ring and the connecting disc. A cylinder is provided on both sides of the top of the separation cylinder. A push plate is fixed at the telescopic end of the cylinder, and two push rods are fixed at the bottom of the push plate.

[0010] Preferably, the top of the separator is connected to a water inlet pipe, and support plates for supporting the cylinder are fixed on both sides of the water inlet pipe. Two through holes for the push rod to pass through are opened on both sides of the top of the separator. A fixing plate for supporting the motor is fixed at the bottom of the separator. A sealing ring located on the outer side of the bottom of the secondary separation net is fixed inside the separator. A water outlet pipe located on the top of the sealing ring is connected to one side of the separator. A support leg is fixed on both sides of the separator.

[0011] Preferably, the diameter of the primary filter holes on the primary separation screen is larger than that of the secondary filter holes on the secondary separation screen.

[0012] Preferably, the top of the separation cylinder is provided with a primary T-shaped groove and a secondary T-shaped groove, the top of the primary separation net is fixed with a primary T-shaped slip ring that mates with the primary T-shaped groove, and the top of the secondary separation net is fixed with a secondary T-shaped slip ring that mates with the secondary T-shaped groove.

[0013] Preferably, the bottom of the chuck is fixed with four locking rods for insertion into the connecting plate, the bottom of the primary separation net and the secondary separation net are each fixed with four locking rods, and the connecting plate is provided with twelve locking holes that cooperate with the twelve locking rods.

[0014] Preferably, two push rods away from the water inlet pipe are located on both sides of the top of the secondary scraping ring, and two push rods close to the water inlet pipe are located on both sides of the top of the primary scraping ring. The push rods are made of magnetic material for adsorbing the primary and secondary scraping rings.

[0015] The advantages compared to existing technologies are as follows: The chuck, inserted into the top of the connecting plate, causes the connecting plate to rotate when the screw rotates. The primary and secondary separation screens, also inserted into the top of the connecting plate, cause the primary and secondary separation screens to rotate when the connecting plate rotates, resulting in centrifugal motion of the wastewater and achieving secondary separation.

[0016] The separation and filtration process improves the solid-liquid separation effect of wastewater. A cylinder pushes a push plate and push rod vertically downwards, which in turn moves the primary scraping ring, secondary scraping ring, and connecting rod downwards, causing the connecting disc to disengage from the chuck. A lead screw drives the connecting disc to rotate and move downwards, which in turn causes the primary scraping ring, secondary scraping ring, and connecting rod to rotate and move downwards. During the downward movement of the primary and secondary scraping rings, the solid impurities separated inside the primary and secondary separation screens are scraped downwards. The rotation of the connecting disc causes the scraped solid impurities to move radially and detach from the top of the connecting disc, thus periodically removing the separated solid impurities and preventing them from clogging the filter holes and affecting the separation effect. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a solid-liquid separation device for wastewater treatment according to the present invention;

[0019] Figure 2 This is a cross-sectional view of a solid-liquid separation device for wastewater treatment according to the present invention;

[0020] Figure 3 is a schematic diagram of the separation mechanism of a solid-liquid separation device for wastewater treatment according to the present invention;

[0021] Figure 4 is a schematic diagram of the cleaning mechanism of a solid-liquid separation device for sewage treatment according to the present invention;

[0022] Figure 5 This is a schematic diagram of the separation cylinder structure of a solid-liquid separation device for wastewater treatment according to the present invention;

[0023] Figure 6 is a schematic diagram of the secondary separation network structure of a solid-liquid separation device for wastewater treatment according to the present invention;

[0024] Figure 7 is a schematic diagram of the primary separation network structure of a solid-liquid separation device for wastewater treatment according to the present invention;

[0025] Figure 8 This is a schematic diagram of the lead screw structure of a solid-liquid separation device for wastewater treatment according to the present invention;

[0026] Figure 9 This is a partial cross-sectional view of a solid-liquid separation device for wastewater treatment according to the present invention.

[0027] The following are the descriptions of the reference numerals:

[0028] 1. Separating cylinder; 2. Separating mechanism; 3. Cleaning mechanism; 201. Lead screw; 202. Motor; 203. Primary separation screen; 204. Secondary separation screen; 205. Chuck; 301. Connecting plate; 302. Connecting rod; 303. Primary scraping ring; 304. Secondary scraping ring; 305. Push rod; 306. Push plate; 307. Cylinder. Detailed Implementation

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] The present invention will be further described below with reference to the accompanying drawings:

[0031] As shown in Figure 1- Figure 9 As shown, a solid-liquid separation device for wastewater treatment includes a separation cylinder 1, a separation mechanism 2, and a cleaning mechanism 3.

[0032] In this embodiment: the separation mechanism 2 includes a lead screw 201, which is rotatably connected inside the separation cylinder 1. A motor 202 is fixedly installed at the input end of the lead screw 201. A primary separation screen 203 and a secondary separation screen 204 are rotatably connected inside the separation cylinder 1. The diameter of the primary filter holes on the primary separation screen 203 is larger than the diameter of the secondary filter holes on the secondary separation screen 204. The secondary separation screen 204 is located outside the primary separation screen 203.

[0033] A chuck 205 is fixed on the outside of 201. Large solid impurities are filtered and separated by a primary separation screen 203, and small solid impurities are filtered and separated by a secondary separation screen 204. The lead screw 201 is driven to rotate by a motor 202.

[0034] In this embodiment: the cleaning mechanism 3 includes a connecting plate 301, a chuck 205, a primary separation net 203, and a secondary separation net 204, all of which are inserted into the top of the connecting plate 301. The bottom of the chuck 205 is fixed with four locking rods for insertion into the connecting plate 301. The bottoms of the primary separation net 203 and the secondary separation net 204 are each fixed with four locking rods. The connecting plate 301 has twelve locking holes that mate with the twelve locking rods. The connecting plate 301 is threaded to the outside of the lead screw 201, and the top inner side of the primary separation net 203... A primary scraping ring 303 is provided, and a secondary scraping ring 304 is provided on the inner side of the top of the secondary separation net 204. Two connecting rods 302 are fixed between the primary scraping ring 303 and the secondary scraping ring 304 and the connecting plate 301. A cylinder 307 is provided on both sides of the top of the separation cylinder 1. A push plate 306 is fixed to the telescopic end of the cylinder 307. Two push rods 305 are fixed to the bottom of the push plate 306. Two push rods 305 are located on both sides of the top of the secondary scraping ring 304, and two push rods 305 are located near the water inlet pipe. On both sides of the top of the primary scraping ring 303, push rods 305 are made of magnetic material for adsorbing the primary scraping ring 303 and the secondary scraping ring 304. A chuck 205 is inserted into the top of the connecting plate 301, causing the connecting plate 301 to rotate when the lead screw 201 rotates. The primary separation net 203 and the secondary separation net 204 are inserted into the top of the connecting plate 301, causing the primary separation net 203 and the secondary separation net 204 to rotate when the connecting plate 301 rotates, thus centrifuging the wastewater to achieve secondary separation and filtration. Cylinder 307 pushes push plate 306 and push rod 305 to move downwards in the vertical direction, thereby pushing primary scraping ring 303, secondary scraping ring 304 and connecting rod 302 downwards, thereby pushing connecting plate 301 to disengage from chuck 205. Through lead screw 201, connecting plate 301 is driven to rotate and move downwards, thereby driving primary scraping ring 303, secondary scraping ring 304 and connecting rod 302 to rotate and move downwards. During the downward movement of primary scraping ring 303 and secondary scraping ring 304, solid impurities separated inside primary separation net 203 and secondary separation net 204 are scraped downwards respectively.

[0035] In this embodiment: a water inlet pipe is connected to the top of the separator 1, and support plates for supporting the cylinder 307 are fixed on both sides of the water inlet pipe. Two through holes for the push rod 305 to pass through are opened on both sides of the top of the separator 1. A fixing plate for supporting the motor 202 is fixed to the bottom of the separator 1. A sealing ring located on the outer side of the bottom of the secondary separation net 204 is fixed inside the separator 1. A connection is made on one side of the separator 1 to the top of the sealing ring.

[0036] The water outlet pipe and the separation cylinder 1 are each fixed with a support leg. The top of the separation cylinder 1 is provided with a primary T-shaped groove and a secondary T-shaped groove. The top of the primary separation net 203 is fixed with a primary T-shaped slip ring that cooperates with the primary T-shaped groove. The top of the secondary separation net 204 is fixed with a secondary T-shaped slip ring that cooperates with the secondary T-shaped groove. The primary separation net 203 and the secondary separation net 204 are supported and rotatably connected to the inner side of the top of the separation cylinder 1 through the primary T-shaped groove and the secondary T-shaped groove.

[0037] Working principle: The starting motor 202 drives the lead screw 201 to rotate. The rotation of the lead screw 201 drives the chuck 205 and the connecting plate 301 to rotate. The rotation of the connecting plate 301 drives the primary separation screen 203 and the secondary separation screen 204 to rotate. Wastewater is poured into the separation cylinder 1 through the inlet pipe. The rotation of the primary separation screen 203 and the secondary separation screen 204 causes the wastewater to undergo centrifugal motion. The primary separation screen 203 filters and separates large-volume solid impurities, and the secondary separation screen 204 filters and separates small-volume solid impurities in the wastewater after primary separation. The liquid after solid-liquid separation is discharged from the outlet pipe. When it is necessary to remove solid impurities, the starting cylinder 307 pushes the push plate 306 and the push rod 305 to move vertically downwards and enter the separation cylinder 1 through the through hole. Inside, push rod 305 contacts and pushes the primary scraping ring 303 and secondary scraping ring 304 downwards. The downward movement of the primary scraping ring 303 and secondary scraping ring 304 causes the connecting rod 302 to move downwards, thereby pushing the connecting plate 301 to disengage from the chuck 205, the primary separation net 203, and the secondary separation net 204. Screw 201 drives the connecting plate 301 to rotate and move downwards, thereby driving the primary scraping ring 303 and secondary scraping ring 304 to rotate and move downwards. During the downward movement of the primary scraping ring 303 and secondary scraping ring 304, they respectively scrape the solid impurities separated inside the primary separation net 203 and the secondary separation net 204 downwards. Due to the rotation of the connecting plate 301, the scraped solid impurities move radially and then detach from the top of the connecting plate 301 and fall down. After the solid impurities are removed, screw 201... The connecting disc 301 rotates in the opposite direction and moves upward to reset, which in turn causes the primary scraping ring 303 and the secondary scraping ring 304 to rotate in the opposite direction and move upward to reset. The push rod 305 contacts and adsorbs the primary scraping ring 303 and the secondary scraping ring 304. The cylinder 307 pulls the push plate 306 and the push rod 305 to move vertically. The vertical movement of the push rod 305 causes the primary scraping ring 303 and the secondary scraping ring 304 to move upward, which in turn causes the connecting rod 302 to move upward, thereby pulling the locking hole on the connecting disc 301 and the locking disc 205 and the primary separation net.

[0038] 203 is inserted and reset with the clamp on the secondary separation net 204, and the push rod 305 is disengaged from the primary scraping ring 303 and the secondary scraping ring 304 and moved out of the separation cylinder 1 through the through hole.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A solid-liquid separation device for wastewater treatment, comprising a separation cylinder (1), characterized in that: It also includes a separation mechanism (2) and a cleaning mechanism (3); The separation mechanism (2) includes a lead screw (201), which is rotatably connected inside the separation cylinder (1). A motor (202) is fixedly installed at the input end of the lead screw (201). A primary separation net (203) and a secondary separation net (204) are rotatably connected inside the separation cylinder (1). The secondary separation net (204) is located outside the primary separation net (203). A chuck (205) is fixed outside the lead screw (201). The cleaning mechanism (3) includes a connecting plate (301), the chuck (205), the primary separation net (203) and the secondary separation net (204) are all inserted into the top of the connecting plate (301), the connecting plate (301) is threaded to the outside of the lead screw (201), the primary separation net (203) is provided with a primary scraping ring (303) on the inner side of the top, the secondary separation net (204) is provided with a secondary scraping ring (304) on the inner side of the top, the primary scraping ring (303) and the secondary scraping ring (304) are each fixed with two connecting rods (302) between the primary scraping ring (303) and the secondary scraping ring (304) and the connecting plate (301), and a cylinder (307) is provided on both sides of the top of the separation cylinder (1), the extension end of the cylinder (307) is fixed with a push plate (306), and the bottom of the push plate (306) is fixed with two push rods (305).

2. The solid-liquid separation device for wastewater treatment according to claim 1, characterized in that: The top of the separation cylinder (1) is connected to a water inlet pipe, and support plates for supporting the cylinder (307) are fixed on both sides of the water inlet pipe. Two through holes for the push rod (305) to pass through are opened on both sides of the top of the separation cylinder (1). A fixing plate for supporting the motor (202) is fixed at the bottom of the separation cylinder (1). A sealing ring located on the outer side of the bottom of the secondary separation net (204) is fixed inside the separation cylinder (1). A water outlet pipe located on the top of the sealing ring is connected to one side of the separation cylinder (1). A support leg is fixed on both sides of the separation cylinder (1).

3. The solid-liquid separation device for wastewater treatment according to claim 1, characterized in that: The diameter of the primary filter holes on the primary separation mesh (203) is larger than that of the secondary filter holes on the secondary separation mesh (204).

4. The solid-liquid separation device for wastewater treatment according to claim 1, characterized in that: The top of the separation cylinder (1) is provided with a primary T-shaped groove and a secondary T-shaped groove. The top of the primary separation net (203) is fixed with a primary T-shaped slip ring that cooperates with the primary T-shaped groove. The top of the secondary separation net (204) is fixed with a secondary T-shaped slip ring that cooperates with the secondary T-shaped groove.

5. A solid-liquid separation device for wastewater treatment according to claim 1, characterized in that: The bottom of the chuck (205) is fixed with four locking rods for insertion into the connecting plate (301). The bottom of the primary separation net (203) and the secondary separation net (204) are both fixed with four locking rods. The connecting plate (301) has twelve locking holes that cooperate with the twelve locking rods.

6. A solid-liquid separation device for wastewater treatment according to claim 2, characterized in that: Two push rods (305) located away from the water inlet pipe are located on the top sides of the secondary scraping ring (304), and two push rods (305) located near the water inlet pipe are located on the top sides of the primary scraping ring (303). The push rods (305) are made of magnetic material for adsorbing the primary scraping ring (303) and the secondary scraping ring (304).

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