Horizontal high-pressure sludge pump

Abstract

The horizontal high-pressure sludge pump comprises a hydraulic station and a pump body, and the pump body comprises a base, a supporting frame, a hydraulic cylinder, two pump barrels, a piston rod, a feeding pipe, a discharging pipe, a reversing mechanism and four one-way valves; the pump barrel comprises a barrel body and further comprises an outer side end cover which is detachably arranged at the outer side end of the barrel body and is approximately in a circular truncated cone shape. The side face of the outer side end cover is provided with two symmetrical feeding and discharging openings, and the lower end of the side face of the outer side end cover is provided with a sewage draining opening; a detachable sealing cover is arranged on the drain outlet; the sludge pump further comprises a barrel wall cleaning mechanism installed on the outer side end covers and used for cleaning the inner wall of the barrel body, and the barrel wall cleaning mechanism comprises two cleaning execution ends arranged in the corresponding outer side end covers respectively. The cleaning device further comprises at least one cleaning driving end which is detachably installed on the outer side end cover and is in transmission connection with the corresponding cleaning execution end. The sludge pump with the design is lower in failure rate and longer in maintenance interval period.

Description

Technical Field

[0001] The invention relates to the field of pumps, and in particular to a horizontal high-pressure sludge pump. Background Art

[0002] High-pressure sludge pump is a kind of equipment used to transport high-concentration sludge. It usually adopts a piston structure and is driven by a hydraulic power device to suck the sludge into the pump chamber and discharge it at high pressure. Its working principle is mainly to use the reciprocating motion of the piston to produce pressure changes, thereby achieving the suction and discharge of sludge. It is widely used in sewage treatment plants, environmental protection projects, industrial production and other fields.

[0003] The high-pressure sludge pump described in the present invention is a horizontal double-cylinder single-feed sludge pump, which mainly includes a hydraulic station and a pump body, wherein the pump body mainly includes a hydraulic cylinder, a pump barrel, an inlet and outlet, a feed pipe, a discharge pipe, a one-way valve, a piston rod, and a reversing mechanism, and the piston rod is provided with a hydraulic cylinder piston and a pump barrel piston.

[0004] The existing double-cylinder single-feed sludge pump has the main problems of high failure rate and short maintenance interval. The failure areas are mainly concentrated in the one-way valve and the pump barrel. The main causes of pump barrel failure are: sludge is easy to remain on the inner wall of the pump barrel, and the solid particles in the sludge will wear the pump barrel piston seal and the inner wall of the pump barrel. At the same time, the chemical components in the sludge may cause corrosion to the inner wall of the pump barrel. The residual sludge will accelerate this corrosion process, especially when the sludge pump is suddenly used after being idle for a long time. The main cause of the one-way valve failure is: when reverse interception occurs, the valve core will hit the valve bottom heavily, causing greater impact and vibration, so the valve core and valve bottom are very easy to be damaged. Summary of the invention

[0005] The object of the present invention is to provide a horizontal high-pressure sludge pump with lower failure rate and longer maintenance interval period.

[0006] The object of the present invention is achieved as follows: A horizontal high-pressure sludge pump comprises a hydraulic station and a pump body, wherein the pump body comprises a base, a support frame, a hydraulic cylinder, two pump barrels, a piston rod, a feed pipe, a discharge pipe, a reversing mechanism, and four one-way valves; the pump barrel comprises a barrel body, and also comprises an outer end cover which is detachably arranged at the outer end of the barrel body and is approximately truncated cone-shaped; the side surface of the outer end cover is provided with two mutually symmetrical inlet and outlet ports, and the lower end of the side surface is provided with a sewage outlet; the sewage outlet is provided with a detachable cover; the inlet and outlet ports are respectively connected to the corresponding one-way valves; The sludge pump also includes a barrel wall cleaning mechanism installed on the outer end cover for cleaning the inner wall of the barrel body, the barrel wall cleaning mechanism includes two cleaning execution ends respectively arranged inside the corresponding outer end covers, and also includes at least one cleaning driving end detachably installed on the outer end cover and drivingly connected to the corresponding cleaning execution end; The cleaning execution end includes a main shaft installed on the central axis of the outer end cover, a scraper seat arranged at the inner end of the main shaft, a limiting protrusion arranged in the middle of the main shaft, and a locking nut arranged at the outer end of the main shaft; a flushing channel is arranged inside the main shaft, and a plurality of flushing nozzles connected to the flushing channel are arranged at the inner end of the main shaft; two scraper arms symmetrical to each other are arranged on the scraper seat, and a scraper is arranged on the scraper arm; a limiting sleeve is arranged on the inner side of the outer end cover, and a limiting groove for matching with the scraper arm is arranged at the inner end of the limiting sleeve; The above-mentioned cleaning drive end includes a nut seat that is detachably mounted on the outer end cover, and also includes a screw rod that is threadedly matched with the nut seat; a locking nut seat is provided on the inner side of the above-mentioned nut seat; a handwheel and a rotating joint are provided at the tail of the above-mentioned screw rod, and a flushing channel is also provided inside the screw rod; a docking mechanism for mutual connection and fixation is provided between the above-mentioned screw rod and the main shaft.

[0007] Compared with the prior art, the beneficial effects of the present invention are: the high-pressure sludge pump provided by the present invention has a lower failure rate and a longer maintenance interval; specifically, on the one hand, a barrel wall cleaning mechanism is added, which can clean the inner wall of the pump barrel in time without disassembling the pump barrel, thereby reducing sludge residue and alleviating its harm; on the other hand, a buffer design is carried out inside the one-way valve to reduce the impact of the valve core on the valve body when the valve core reverses the flow, thereby extending the overall life of the one-way valve.

[0008] As a preferred solution of the present invention, the docking mechanism includes a docking protrusion, which is arranged at the end of the screw rod and has a locking groove in the middle; a docking groove, which is arranged at the end of the main shaft and has a sealing gasket at the bottom, and the docking protrusion is detachably inserted into the docking groove and spline-connected with the docking groove; a countersunk hole, which has a plurality of countersunk holes, which are respectively arranged symmetrically on the periphery of the docking groove and whose positions correspond to the locking groove; and a locking screw is arranged in the countersunk hole. This design has a simple structure, reliable docking, and convenient operation.

[0009] Furthermore, when the cleaning execution end is retracted and idle, the above-mentioned limit protrusion abuts against the outer end cover; the above-mentioned scraper seat retracts to the end of the limit sleeve, and the scraper arm cooperates with the corresponding limit groove; at this time, a sealing ring is provided on the mating surface of the above-mentioned limit protrusion, the main shaft and the outer end cover.

[0010] As a preferred embodiment of the present invention, the one-way valve comprises a valve body, the outer side of the valve body is provided with a discharge port; a valve cover, the valve cover is detachably arranged on the top of the valve body; a valve core, the valve core is located inside the valve body and can be slidably installed on the valve cover; a buffer sleeve slide, the buffer sleeve slide is arranged at the bottom of the inner side of the valve body, and a buffer sleeve is provided thereon to slide with it; a sliding sealing assembly is provided between the buffer sleeve slide and the buffer sleeve; a feed port, the feed port is detachably arranged at the lower end of the valve body, and a buffer sleeve buffer spring is provided inside the feed port. Such a design can reduce the impact of the valve core on the bottom of the valve body during reverse interception, thereby extending the service life of the valve core, the valve body and even the entire one-way valve.

[0011] Furthermore, the sliding seal assembly includes, from bottom to top, a dust ring 1, a sealing ring 2, a step seal, a support ring, a sealing ring 3, and a dust ring 2.

[0012] As a preferred solution of the present invention, the one-way valve further includes a buffer sleeve lubrication mechanism, which includes a lubrication channel provided on the valve body and connected to the inside of the buffer sleeve slide; an annular lubrication channel is provided on the upper and lower sides of the support ring; the inner end of the lubrication channel faces the support ring and is connected to the annular lubrication channel; and a sealing screw is provided on the outer end of the lubrication channel. This design can reduce the wear of the buffer sleeve and the buffer sleeve slide, thereby extending their service life.

[0013] As a preferred solution of the present invention, the valve core includes a valve core seat, which is detachably inserted into the valve cover, and a valve core seat fixing nut is provided at the outer end of the valve core seat; a valve core body, which is slidably installed on the valve core seat; a spring seat, which is arranged on the inner side of the valve cover; and a valve core buffer spring, which is sleeved on the valve core body, with its upper end abutting against the spring seat and its lower end abutting against the valve core body. This design facilitates the subsequent maintenance and replacement of the entire valve core. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the main structure of the present invention.

[0015] Figure 2 It is a right view structural schematic diagram of the present invention.

[0016] Figure 3 It is a schematic diagram of the matching relationship between the barrel wall cleaning mechanism and the pump barrel of the present invention.

[0017] Figure 4 It is a structural schematic diagram of the docking mechanism of the present invention.

[0018] Figure 5 It is a schematic diagram of the matching relationship between the limiting sleeve, the scraper seat and the scraper arm of the invention.

[0019] Figure 6 It is a schematic structural diagram of the one-way valve of the present invention.

[0020] Figure 7 for Figure 6 A local enlarged schematic diagram of point A in the middle.

[0021] Among them, 1 base, 2 support frame, 3 hydraulic cylinder, 4 pump barrel, 4a barrel body, 4b outer end cover, 4c inlet and outlet, 4d sewage outlet, 4e sealing cover, 5 feed pipe, 6 outlet pipe, 7 slide rod seat, 8 slide rod, 9 sensor block, 10 sensor fixing frame, 11 sensor, 12 one-way valve, 13 valve body, 13a outlet, 14 valve cover, 15 valve core seat, 15a valve core seat fixing nut, 16 valve core body, 17 spring seat, 18 valve core buffer spring, 19 buffer sleeve slide seat, 20 buffer sleeve, 21 dust ring one, 21a dust ring two, 22 sealing ring one, 22b sealing ring two, 22b sealing ring three, 23 Step seal, 24 support ring, 25 feed port, 25a buffer sleeve buffer spring, 26 lubrication channel, 26a sealing screw, 27 annular lubrication channel, 28 screw fixing seat, 29 fixing screw, 30 spindle, 31 scraper seat, 31a scraper arm, 31b scraper, 32 limiting protrusion, 33 locking nut, 34 flushing channel, 35 flushing nozzle, 36 limiting sleeve, 36a limiting groove, 37 nut seat, 37a locking nut seat, 38 screw rod, 38a handwheel, 39 swivel joint, 40 docking protrusion, 40a locking groove, 41 docking groove, 41a sealing gasket, 42 countersunk hole, 42a locking screw. DETAILED DESCRIPTION

[0022] The above and other technical features and advantages of the present invention are described in more detail below in conjunction with the accompanying drawings.

[0023] Combined with Figure 1-6As shown, a horizontal high-pressure sludge pump includes a hydraulic station and a pump body, wherein the pump body includes a base 1, a support frame 2, a hydraulic cylinder 3, two pump barrels 4, a piston rod, a feed pipe 5, a discharge pipe 6, a reversing mechanism, and four one-way valves 12; the pump barrel 4 includes a barrel body 4a, and also includes an outer end cover 4b detachably arranged at the outer end of the barrel body 4a, which is approximately truncated cone-shaped; the side of the outer end cover 4b is provided with two mutually symmetrical inlet and outlet ports 4c, and the lower end of the side thereof is provided with a sewage outlet 4d; the sewage outlet 4d is provided with a removable The sludge pump further comprises a barrel wall cleaning mechanism mounted on the outer end cover 4b for cleaning the inner wall of the barrel body 4a, the barrel wall cleaning mechanism comprising two cleaning execution ends respectively arranged inside the corresponding outer end cover 4b, and at least one cleaning driving end detachably mounted on the outer end cover 4b and drivingly connected to the corresponding cleaning execution end; the cleaning execution end comprises a main shaft 3 mounted on the central axis of the outer end cover 4b 0, further comprising a scraper seat 31 arranged at the inner end of the main shaft 30, further comprising a limiting protrusion 32 arranged in the middle of the main shaft 30, and further comprising a locking nut 33 arranged at the outer end of the main shaft 30; the interior of the above-mentioned main shaft 30 is provided with a flushing channel 34, and the inner end of the above-mentioned main shaft 30 is provided with a plurality of flushing nozzles 35 connected with the flushing channel 34; the above-mentioned scraper seat 31 is provided with two scraper arms 31a symmetrical to each other, and the above-mentioned scraper arms 31a are provided with scrapers 31b; the inner side of the above-mentioned outer end cover 4b is provided with a limiting sleeve 3 6. The inner end of the limit sleeve 36 is provided with a limit groove 36a for matching with the scraper arm 31a; the cleaning drive end includes a nut seat 37 detachably mounted on the outer end cover 4b, and also includes a screw rod 38 threadedly matched with the nut seat 37; a locking nut seat 37a is provided on the inner side of the nut seat 37; a hand wheel 38a and a rotary joint 39 are provided at the tail of the screw rod 38, and a flushing channel 34 is also provided inside the screw rod 38; a docking mechanism for mutual connection and fixation is provided between the screw rod 38 and the main shaft 30; It should be noted that the one-way valve 12 is also connected to the feed pipe 5 or the discharge pipe 6 respectively; the reversing mechanism includes a slide rod seat 7, a slide rod 8, a sensing block 9, a sensor fixing bracket 10, and a sensor 11. For the specific structure and working principle, reference may be made to the patent with the authorization announcement number CN 209294014 U; the nut seat 37 is fixed to the outer end cover 4b by bolts or screws.

[0024] The docking mechanism includes a docking protrusion 40, which is arranged at the end of the screw rod 38 and has a locking groove 40a in the middle; a docking groove 41, which is arranged at the end of the main shaft 30 and has a sealing gasket 41a at the bottom. The docking protrusion 40 can be detachably inserted into the docking groove 41 and spline-connected thereto; a plurality of countersunk holes 42, which are respectively symmetrically arranged on the outer periphery of the docking groove 41 and are located corresponding to the locking groove 40a; a locking screw 42a is arranged in the countersunk hole 42; It should be noted that when the docking mechanism is docked, the docking protrusion 40 at the end of the screw rod 38 is directly inserted into the docking groove 41 at the end of the main shaft 30; finally, the locking screws 42a are screwed in sequentially until they match the locking groove 40a.

[0025] When the cleaning execution end is retracted and idle, the above-mentioned limiting protrusion 32 abuts against the outer end cover 4b; the above-mentioned scraper seat 31 is retracted to the end of the limiting sleeve 36, and the scraper arm 31a cooperates with the corresponding limiting groove 36a; at this time, the above-mentioned limiting protrusion 32, the main shaft 30 and the outer end cover 4b are all provided with a sealing ring 22 on the matching surface.

[0026] The one-way valve 12 comprises a valve body 13, the outer side of the valve body 13 is provided with a discharge port 13a; a valve cover 14, the valve cover 14 is detachably arranged at the top of the valve body 13; a valve core, the valve core is located inside the valve body 13 and is slidably mounted on the valve cover 14; a buffer sleeve slide 19, the buffer sleeve slide 19 is arranged at the bottom of the inner side of the valve body 13, and a buffer sleeve 20 is slidably matched therewith is arranged thereon; a sliding sealing assembly is arranged between the buffer sleeve slide 19 and the buffer sleeve 20; a feed port 25, the feed port 25 is detachably arranged at the lower end of the valve body 13, and a buffer sleeve buffer spring 25a is arranged inside the feed port 25; It should be noted that when the one-way valve is in one-way flow, sewage flows in from the feed port 25, pushes open the valve core body 16, enters the valve body 13, and then flows out from the discharge port 13a. When the one-way valve is closed, sewage flows in from the discharge port 13a, enters the valve body 13, and brings the valve core body 16 downward to hit the buffer sleeve 20. The buffer sleeve 20 moves downward along the buffer sleeve slide 19, converting the impact potential energy between them into the elastic potential energy of the buffer sleeve buffer spring 25a, thereby relieving the impact between the bottom of the valve body 13 and the valve core body 16. A plurality of screw fixing seats 28 are provided on the inner side of the valve body 13, and the valve cover 14 and the feed port 25 are connected and fixed by the cooperation of the fixing screws 29 and the screw fixing seats 28.

[0027] The above-mentioned sliding seal assembly includes, from bottom to top, a dust ring 1 21, a sealing ring 22a, a step seal 23, a support ring 24, a sealing ring 3 22b, and a dust ring 21a.

[0028] The one-way valve 12 further includes a buffer sleeve lubrication mechanism, which includes a lubrication channel 26 disposed on the valve body 13 and communicated with the inside of the buffer sleeve slide 19; an annular lubrication channel 27 is disposed on the upper and lower sides of the support ring 24; the inner end of the lubrication channel 26 faces the support ring 24 and communicates with the annular lubrication channel 27; and a sealing screw 26a is disposed on the outer end of the lubrication channel 26; It should be noted that during lubrication, the sealing screw 26a is opened and lubricating oil is injected into the lubrication channel 26; the lubricating oil flows into the annular lubrication channel 27 through the lubrication channel 26 and contacts the outer periphery of the buffer sleeve 20; thereafter, as the buffer sleeve 20 moves up and down, the lubricating oil fully contacts the sealing assembly, thereby playing a lubricating role.

[0029] The valve core includes a valve core seat 15, which is detachably inserted into the valve cover 14, and a valve core seat fixing nut 15a is provided at the outer end of the valve core seat 15; a valve core body 16, which is slidably installed on the valve core seat 15 up and down; a spring seat 17, which is arranged on the inner side of the valve cover 14; a valve core buffer spring 18, which is sleeved on the valve core body 16, with its upper end abutting against the spring seat 17 and its lower end abutting against the valve core body 16.

[0030] When the high pressure sludge pump is working, The high-pressure oil provided by the hydraulic station enters the hydraulic cylinder 3, and the hydraulic piston in the hydraulic cylinder 3 drives the piston rod to move back and forth, thereby driving the pump barrel pistons at both ends of the piston rod to move back and forth in their respective pump barrels 4; when the pump barrel piston in a pump barrel 4 moves toward the hydraulic cylinder 3, the sewage in the feed pipe 5 is sucked into the pump barrel 4 through the corresponding one-way valve 12 and the inlet and outlet ports 4c; at the same time, the pump barrel piston in another pump barrel 4 gradually moves away from the hydraulic cylinder 3, and the sewage therein is pushed by the pump barrel piston and discharged into the discharge pipe 6 through the corresponding inlet and outlet ports 4c and the one-way valve 12.

[0031] When using the barrel wall cleaning mechanism, First, the sludge in the pump barrel 4 is drained, that is, the feed pipe 5 is closed to stop the sludge delivery, and the sludge pump continues to work for a period of time to drain the sludge in the pump barrel 4 as much as possible; Afterwards, the pump barrel 4 is determined to adjust the pump barrel piston, that is, the pump barrel 4 whose barrel wall needs to be cleaned is selected, and the pump barrel piston in the pump barrel 4 is controlled by the hydraulic cylinder 3 to move toward the hydraulic cylinder 3 until it reaches the bottom of the pump barrel 4, and then the sludge pump is turned off; After that, install the cleaning drive end, that is, first loosen the locking nut 33 to the appropriate position; then push the main shaft 30 inwardly so that the scraper arm 31a is out of engagement with the limiting groove 36a; then, insert the end of the screw rod 38 into the end of the main shaft 30 for docking; then, rotate the nut seat 37 appropriately so that the connecting section of the nut seat 37 is aligned with the mounting hole on the outer end cover 4b, and fix it by screw connection. During this period, the position of the locking nut 33 can also be appropriately adjusted to ensure that the connecting section of the nut seat 37 can abut against the outer end cover 4b; finally, remove the locking nut 33 from the main shaft 30 and screw it into the locking nut seat 37a; Finally, the barrel wall is cleaned, that is, the sewage outlet 4d is opened, the swivel joint 39 is connected to the flushing water source, and then the hand wheel 38a is turned. As the hand wheel 38a is turned, the screw 38 rotates with the scraper seat 31 through the main shaft 30, and continuously extends into the pump barrel 4. During this period, the scraper 31b on the scraper arm 31a continuously scrapes the sludge remaining on the inner wall of the pump barrel 4, and the flushing nozzle 35 also continuously sprays flushing water to flush the inner wall of the pump barrel 4. The cleaned sludge is discharged from the sewage outlet 4d with the water flow; in order to obtain a better cleaning effect, the scraper seat 31 can be reciprocated by the hand wheel 38a, and then the inner wall of the pump barrel 4 can be cleaned back and forth several times to achieve a better cleaning effect; It should be noted that the cleaning drive end of the barrel wall cleaning mechanism is designed to be detachable, which can save the space occupied by the sludge pump, thereby facilitating transportation and handling; the inner diameter of the locking nut seat 37a is larger than the outer diameter of the screw rod 38, so it does not affect the movement of the screw rod 38; It should also be noted that when disassembling the cleaning drive end, first, the screw rod 38 is retracted by rotating the hand wheel 38a until the scraper arm 31a abuts against the end of the limit sleeve 36; then, the locking nut 33 is removed from the locking nut seat 37a and installed on the spindle 30; then, the nut seat 37 can be disassembled, and the screw rod 38 and the spindle 30 can be docked and disassembled; finally, the position of the spindle 30 is continuously adjusted, and the spindle 30 is pulled outward until the scraper arm 31a is re-engaged in the limit groove 36a, and the locking nut 33 is tightened to complete the locking of the cleaning execution end; In order to facilitate the scraper arm 31a to be quickly inserted into the limit groove 36a, a marking line can be drawn on the outer end of the main shaft 30, and its angular position is synchronized with the angular position of the scraper arm 31a. At the same time, the limit groove 36a on the limit sleeve 36 is set vertically, so that the operator can quickly adjust the scraper arm 31a to a vertical state through the marking line, and then quickly cooperate with the limit groove 36a in the vertical state.

[0032] The present invention is not limited to the above-mentioned embodiments. On the basis of the technical solution disclosed in the present invention, technicians in this field can make some substitutions and deformations to some technical features therein according to the disclosed technical content without creative labor, and these substitutions and deformations are all within the protection scope of the present invention.

Claims

1. A horizontal high-pressure sludge pump, comprising a hydraulic station and a pump body, wherein the pump body comprises a base (1), a support frame (2), a hydraulic cylinder (3), two pump barrels (4), a piston rod, a feed pipe (5), a discharge pipe (6), a reversing mechanism, and four one-way valves (12); characterized in that: The pump barrel (4) comprises a barrel body (4a), and also comprises an outer end cover (4b) detachably arranged at the outer end of the barrel body (4a) and having a substantially truncated cone shape; the side of the outer end cover (4b) is provided with two mutually symmetrical inlet and outlet ports (4c), and the lower end of the side thereof is provided with a sewage outlet (4d); the sewage outlet (4d) is provided with a detachable sealing cover (4e); the inlet and outlet ports (4c) are respectively connected to corresponding one-way valves (12); The sludge pump further comprises a barrel wall cleaning mechanism mounted on the outer end cover (4b) and used for cleaning the inner wall of the barrel body (4a), the barrel wall cleaning mechanism comprising two cleaning execution ends respectively arranged inside corresponding outer end covers (4b), and at least one cleaning driving end detachably mounted on the outer end cover (4b) and drivingly connected to the corresponding cleaning execution end; The cleaning execution end comprises a main shaft (30) mounted on the central axis of the outer end cover (4b), a scraper seat (31) arranged at the inner end of the main shaft (30), a limiting protrusion (32) arranged in the middle of the main shaft (30), and a locking nut (33) arranged at the outer end of the main shaft (30); a flushing channel (34) is provided inside the main shaft (30), and a plurality of flushing nozzles (35) connected to the flushing channel (34) are provided at the inner end of the main shaft (30); two scraper arms (31a) symmetrical to each other are provided on the scraper seat (31), and a scraper (31b) is provided on the scraper arm (31a); a limiting sleeve (36) is provided on the inner side of the outer end cover (4b), and a limiting groove (36a) for matching with the scraper arm (31a) is provided at the inner end of the limiting sleeve (36); The cleaning drive end comprises a nut seat (37) detachably mounted on the outer end cover (4b), and a screw rod (38) threadably matched with the nut seat (37); a locking nut seat (37a) is provided on the inner side of the nut seat (37); a hand wheel (38a) and a rotary joint (39) are provided at the tail of the screw rod (38), and a flushing channel (34) is also provided inside the screw rod (38); and a docking mechanism for mutually connecting and fixing the screw rod (38) and the main shaft (30) is provided between the screw rod (38) and the main shaft (30).

2. A horizontal high-pressure sludge pump according to claim 1, characterized in that: The docking mechanism comprises A docking protrusion (40), the docking protrusion (40) being arranged at the end of the screw rod (38) and having a locking groove (40a) in the middle thereof; A docking groove (41), the docking groove (41) being arranged at the end of the main shaft (30), a sealing gasket (41a) being arranged at the bottom thereof, and the docking protrusion (40) being detachably inserted into the docking groove (41) and spline-connected thereto; A plurality of countersunk holes (42) are provided, each of which is centrally symmetrically arranged on the outer periphery of the docking groove (41) and whose positions correspond to the locking groove (40a); a locking screw (42a) is provided in each of the countersunk holes (42).

3. A horizontal high-pressure sludge pump according to claim 2, characterized in that: When the cleaning execution end is retracted and idle, the limiting protrusion (32) abuts against the outer end cover (4b); the scraper seat (31) retracts to the end of the limiting sleeve (36), and the scraper arm (31a) cooperates with the corresponding limiting groove (36a); at this time, a sealing ring (22) is provided on the matching surfaces of the limiting protrusion (32), the main shaft (30) and the outer end cover (4b).

4. A horizontal high-pressure sludge pump according to any one of claims 1 to 3, characterized in that: The one-way valve (12) comprises A valve body (13), wherein a discharge port (13a) is provided on the outer side of the valve body (13); A valve cover (14), wherein the valve cover (14) is detachably arranged on the top of the valve body (13); A valve core, the valve core is located inside the valve body (13) and is mounted on the valve cover (14) in a manner that allows it to slide up and down; a buffer sleeve slide seat (19), the buffer sleeve slide seat (19) being arranged at the bottom of the inner side of the valve body (13), and having a buffer sleeve (20) slidably matched therewith provided thereon; a sliding sealing assembly being provided between the buffer sleeve slide seat (19) and the buffer sleeve (20); A feed inlet (25), the feed inlet (25) being detachably arranged at the lower end of the valve body (13), and having a buffer sleeve and a buffer spring (25a) provided on the inner side thereof.

5. A horizontal high-pressure sludge pump according to claim 4, characterized in that: The sliding seal assembly comprises, from bottom to top, a dust ring 1 (21), a sealing ring 2 (22a), a step seal (23), a support ring (24), a sealing ring 3 (22b), and a dust ring 2 (21a).

6. A horizontal high-pressure sludge pump according to claim 5, characterized in that: The one-way valve (12) further comprises a buffer sleeve lubrication mechanism, wherein the buffer sleeve lubrication mechanism comprises a lubrication passage (26) disposed on the valve body (13) and connected to the interior of the buffer sleeve slide seat (19); An annular lubrication channel (27) is provided on the upper and lower sides of the support ring (24); the inner end of the lubrication channel (26) faces the support ring (24) and is connected to the annular lubrication channel (27); and a sealing screw (26a) is provided on the outer end of the lubrication channel (26).

7. A horizontal high-pressure sludge pump according to claim 4, characterized in that: The valve core comprises A valve core seat (15), the valve core seat (15) being detachably inserted into the valve cover (14), and a valve core seat fixing nut (15a) being provided at an outer end of the valve core seat (15); A valve core body (16), wherein the valve core body (16) is slidably mounted on the valve core seat (15) up and down; A spring seat (17), wherein the spring seat (17) is arranged on the inner side of the valve cover (14); A valve core buffer spring (18) is sleeved on the valve core body (16), with its upper end abutting against the spring seat (17) and its lower end abutting against the valve core body (16).

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