Automatic impurity removal device and method for garbage slurry

Abstract

The invention relates to an automatic impurity removal device for garbage slurry and a method thereof.The automatic impurity removal device comprises a rack and a shell arranged on the rack, a rotating shaft is arranged in the shell, a feeding assembly, a pushing assembly and a slag discharging assembly are sequentially arranged on the rotating shaft, and the pushing assembly comprises a screen and pushing blades arranged on the rotating shaft; the slag discharging assembly comprises a slag outlet formed in the shell, an extrusion assembly and an adjusting assembly driven by the extrusion assembly are arranged on the slag outlet, the extrusion assembly comprises an extrusion plate arranged on the slag outlet in a sliding mode, the adjusting assembly comprises a hydraulic cylinder and an oil pipe connected between the material pushing blade and the hydraulic cylinder, and a pushing assembly is arranged on the shell. The extrusion assembly further extrudes the separated impurities, the impurities push the extrusion plate to the slag outlet and meanwhile drive the piston to push hydraulic oil to the material pushing blade, the material pushing blade is unfolded outwards, the conveying efficiency is improved, garbage slurry is separated more thoroughly, the impurities are pushed through the pushing plate, and the impurities are discharged more smoothly.

Description

Technical Field

[0001] The invention relates to the field of restaurant and kitchen waste treatment, and more particularly to an automatic impurity removal device for garbage slurry and a method thereof. Background Art

[0002] The food waste from restaurants, hotels, company canteens, and daily life of families, as well as food scraps, leftovers, meat, grease, vegetables, fruits, etc., is the main component of urban domestic waste. Food waste contains food residues, water, bones, sand, cooking oil, napkins and other impurities. When these impurities are left in the food waste pretreatment slurry, it will lead to serious consequences such as blockage of the conveying pipeline and abnormal wear of the pretreatment equipment, greatly reducing the service life of the equipment.

[0003] The Chinese patent with publication number CN114953561B discloses a food waste slurry impurity remover, wherein the feed section is used to push the slurry entering the feed cavity forward into the impurity removal cavity during rotation to prevent the slurry from accumulating in the feed cavity, and the push section is used to push the slurry toward the slag discharge cavity during rotation, and centrifugally stratify the slurry in the impurity removal cavity, so that water in the slurry and small substances with a particle size smaller than the mesh diameter of the separation screen are discharged after passing through the separation screen, and impurities in the slurry enter the slag discharge cavity and are discharged, thereby realizing the separation process of impurities in the slurry. The entire impurity removal process of the food waste slurry impurity remover of the present invention is automatic and continuous, realizing continuous feeding, impurity removal, liquid discharge, and impurity discharge, and the overall structure is simple and the working efficiency is high. However, the impurity remover lacks further separation of impurities when the impurities are discharged, resulting in incomplete separation of liquid in the impurities. Summary of the invention

[0004] The purpose of the present invention is to address the deficiencies in the prior art and provide a submersible mixer blade assembly and welding device. After garbage slurry is input into the pusher blade through a feeding assembly, the liquid and impurities are separated during the rotation of the pusher blade, and the separated impurities are further squeezed by an extrusion assembly. After accumulating to a certain extent, the impurities push the extrusion plate to the slag outlet and fall off, while driving the piston to push the hydraulic oil in the hydraulic cylinder to the pusher blade, so that the pusher blade is expanded outward, the transmission efficiency is accelerated, and the garbage slurry is separated more thoroughly. After the extrusion plate is pushed against the switch by the pushing assembly, the pushing plate is driven to push the impurities, so that the impurities can be discharged more smoothly.

[0005] The technical solutions of the present invention are as follows:

[0006] The loader is provided with a plurality of pushers, the pushers are ...

[0007] Preferably, the feed assembly comprises a feed cavity opened on the shell, a feed pipe fixedly arranged on the shell, and a spiral blade fixedly arranged on the rotating shaft, and the feed cavity is connected to the feed pipe.

[0008] As a preferred embodiment, the pushing assembly also includes a plurality of slide grooves opened on the rotating shaft, a limiting groove opened on the slide groove, and a limiting block fixedly set on the pushing blade, the limiting block cooperates with the limiting groove, the pushing blade cooperates with the slide groove, and the screen is fixedly set on the shell.

[0009] Preferably, the slag discharge assembly further comprises a slag discharge cavity opened on the shell, and a slag discharge pipe fixedly arranged on the shell, and the slag discharge port is communicated with the slag discharge pipe.

[0010] Preferably, the extrusion assembly further comprises a fixed tube fixedly arranged on the extrusion plate, and a spring sleeved on the fixed tube, wherein the spring is fixedly connected between the extrusion plate and the slag discharge chamber.

[0011] As a preferred embodiment, the adjusting assembly also includes a piston slidably arranged in the hydraulic cylinder, a fixed sleeve fixedly arranged on the hydraulic cylinder, a connecting pipe fixedly connected between the fixed sleeve and the hydraulic cylinder, and an oil storage chamber opened on the rotating shaft, the fixed pipe is slidably arranged between the slag discharge chamber and the hydraulic cylinder and fixedly connected to the piston, the oil pipe is fixedly arranged between the slide groove and the oil storage chamber, and the oil storage chamber is communicated with the fixed sleeve.

[0012] As a preferred embodiment, the pushing assembly includes a through opening opened on the slag discharge chamber, a push plate slidably arranged on the through opening, a motor fixedly arranged on the shell, a screw rod fixedly arranged on the motor output shaft, a slide plate slidably arranged on the screw rod, and a switch fixedly arranged on the slag discharge chamber, the slide plate is fixedly connected to the pushing plate, the switch cooperates with the extrusion plate, and the switch is electrically connected to the motor.

[0013] As a preferred embodiment, the pusher blades extend in a spiral shape along the axial direction of the rotating shaft and are provided with semicircular through grooves.

[0014] As a preference, a liquid outlet pipe is provided below the screen.

[0015] Another design object of the present invention is to provide a method for automatically removing impurities from garbage slurry, comprising the following steps:

[0016] Step 1: The garbage slurry is fed from the feed pipe into the feed chamber, and the spiral blade feeds it into the push blade and the screen;

[0017] Step 2: During the rotation process, the push blade separates the liquid in the garbage slurry through the screen into the liquid outlet pipe and transmits the impurities to the slag outlet;

[0018] Step 3: When the impurities are accumulated on the extrusion plate and extruded to a set amount, the impurities push the extrusion plate to the slag outlet and the extrusion plate hits the switch, driving the push plate to push the impurities, so that the impurities are discharged through the slag outlet pipe;

[0019] Step 4: When the impurities push the extrusion plate and the piston to slide, the piston injects the hydraulic oil in the hydraulic cylinder into the slide groove through the oil pipe, pushing the push blades outward for transmission.

[0020] The beneficial effects of the present invention are

[0021] 1. The present invention is provided with a feeding assembly, a pushing assembly and a slag discharge assembly. The garbage slurry is pushed to the pushing blades by the spiral blades. The pushing blades separate the liquid and impurities in the garbage slurry during the rotation process. The impurities are pushed to the slag discharge port for discharge, thereby achieving the effect of automatic impurity removal of the garbage slurry.

[0022] 2. The present invention is also provided with an extrusion component, an adjustment component and a push component. When impurities are pushed to the extrusion plate, the impurities are accumulated on the extrusion plate, and the impurities are further separated from the solid and liquid. Subsequently, when the compacted impurities reach a certain amount, the extrusion plate is pushed to open the slag outlet and at the same time, the push blades are driven to expand outward, thereby increasing the contact surface with the impurities and accelerating the impurity discharge speed. At the same time, the extrusion plate resists the switch, driving the push plate to push the impurities, so that the impurities are discharged faster, preventing impurities from being blocked, improving the separation effect and ensuring smooth discharge of impurities.

[0023] In summary, the present invention has the advantages of good impurity removal effect and high speed, and is suitable for the field of food waste treatment. 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 structural schematic diagram of an automatic impurity removal device for garbage slurry;

[0026] Figure 2 is a schematic diagram of the structure of the screen;

[0027] Figure 3 It is a schematic diagram of the structure of the extrusion component and the adjustment component;

[0028] Figure 4 is a structural schematic diagram of the chute;

[0029] Figure 5 It is a structural schematic diagram of the oil pipeline;

[0030] Figure 6 is a schematic diagram of the structure of the push assembly;

[0031] Figure 7 It is a schematic diagram of the state of garbage slurry during solid-liquid separation;

[0032] Figure 8 It is a schematic diagram of the state when the extrusion plate is pushed after the impurities are extruded so that the pusher blades are unfolded and the pusher block is pushed at the same time;

[0033] Fig. 9 for Figure 8 Enlarged view of point A in the middle;

[0034] Fig.10 Schematic diagram of the state when hydraulic oil is injected into the slideway to drive the push blade to unfold;

[0035] Figure numerals: 1 frame, 2 shell, 3 rotating shaft, 4 feeding assembly, 41 feeding chamber, 42 feeding pipe, 43 spiral blade, 5 pushing assembly, 51 screen, 52 pushing blade, 53 slide, 54 limiting groove, 55 limiting block, 6 slag discharge assembly, 61 slag discharge port, 62 slag discharge chamber, 63 slag discharge pipe, 7 extrusion assembly, 71 extrusion plate, 72 fixed pipe, 73 spring, 8 adjustment assembly, 81 hydraulic cylinder, 82 oil pipe, 83 piston, 84 fixed sleeve, 85 connecting pipe, 86 oil storage chamber, 9 pushing assembly, 91 through port, 92 pushing plate, 93 motor, 94 screw rod, 95 slide plate, 96 switch, 10 through slot, 11 liquid discharge pipe. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the accompanying drawings.

[0037] Embodiment 1

[0038] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0039] like Figures 1 to 10 As shown, a garbage slurry automatic impurity removal device includes a frame 1 and a shell 2 arranged on the frame 1, a rotating shaft 3 is arranged in the shell 2, a feeding assembly 4, a pushing assembly 5 and a slag discharge assembly 6 are arranged on the rotating shaft 3 in sequence, the pushing assembly 5 includes a screen 51 and a pushing blade 52 arranged on the rotating shaft 3, the slag discharge assembly 6 includes a slag discharge port 61 arranged on the shell 2, an extrusion assembly 7 and an adjustment assembly 8 driven by the extrusion assembly 7 are arranged on the slag discharge port 61, the extrusion assembly 7 includes an extrusion plate 71 slidably arranged on the slag discharge port 61, and the adjustment assembly 8 includes a hydraulic cylinder 81 and a hydraulic cylinder 81 connected to the pushing blade 52 and the hydraulic cylinder 8 1, a pushing assembly 9 is arranged on the shell 2, the feeding assembly 4 is used to push the garbage slurry to the pushing assembly 5, the pushing assembly 5 is used to separate the liquid through the screen 51 during the rotation and push the impurities to the slag outlet 61, the extrusion assembly 7 squeezes the liquid in the separated impurities through the extrusion plate 71, the adjustment assembly 8 is used to push the extrusion plate 71 to the slag outlet 61 to discharge the impurities and adjust the height of the pushing blade 52 through the oil pipe 82 in the hydraulic cylinder 81, the pushing assembly 9 is used to push the impurities when they are discharged, wherein the rotating shaft 3 is connected with a driving device, which can drive the rotating shaft 3 to rotate.

[0040] It is worth mentioning that Figure 7 As shown, the feed assembly 4 includes a feed chamber 41 opened on the shell 2, a feed pipe 42 fixedly arranged on the shell 2, and a spiral blade 43 fixedly arranged on the rotating shaft 3. The feed chamber 41 is connected with the feed pipe 42. When in use, the garbage slurry enters the feed chamber 41 through the feed pipe 42. The spiral blade 43 transfers the garbage slurry to the pushing blade 52 during the rotation process to prevent the feed chamber 41 from being blocked.

[0041] In addition, if Figures 2 to 7As shown, the pushing assembly 5 also includes a plurality of slide grooves 53 provided on the rotating shaft 3, a limiting groove 54 provided on the slide groove 53, and a limiting block 55 fixedly provided on the pushing blade 52. The limiting block 55 cooperates with the limiting groove 54, and the pushing blade 52 cooperates with the slide groove 53. The screen 51 is fixedly provided on the shell 2. When in use, the pushing blade 52 separates the liquid from the impurities in the garbage slurry under high-speed rotation and transports the impurities axially along the rotating shaft 3. The liquid in the garbage slurry flows out through the screen 51, and the impurities are transported to the slag outlet 61, thereby achieving a continuous and automatic impurity removal effect.

[0042] It should be further explained that if Figure 2 As shown, the slag discharge component 6 also includes a slag discharge chamber 62 opened on the shell 2 and a slag discharge pipe 63 fixedly arranged on the shell 2. The slag discharge port 61 is connected with the slag discharge pipe 63. When in use, impurities pass through the slag discharge chamber 62 and then fall from the slag discharge pipe 63 through the slag discharge port 61, thereby realizing the automatic impurity removal effect of the garbage slurry.

[0043] It is worth mentioning that Figures 7 to 9 As shown, the extrusion assembly 7 also includes a fixed tube 72 fixedly arranged on the extrusion plate 71, and a spring 73 sleeved on the fixed tube 72, wherein the spring 73 is fixedly connected between the extrusion plate 71 and the slag discharge chamber 62, wherein the initial state of the extrusion plate 71 is located at the front side of the slag discharge port 61, and the slag discharge port 61 is in a closed state, wherein, since the garbage slurry is continuously input, impurities will accumulate at the extrusion plate 71, and the liquid in the impurities will be further squeezed during the accumulation process, so as to better achieve solid-liquid separation and improve the separation effect, when impurities accumulate, the impurities near the extrusion plate 71 will be compacted, and when a certain amount is reached, the impurities will push the extrusion plate 71 to slide until the slag discharge port 61 is opened for discharge, and when a section of compacted impurities is discharged, the impurities at the rear will not be squeezed. The lower part is in a loose state at the squeezing plate 71. At this time, the elastic force of the spring 73 can drive the squeezing plate 71 to reset, and can squeeze the loose impurities at the rear. When in use, when the impurities are transmitted to the squeezing plate 71, they accumulate. During the accumulation process, the impurities are further squeezed to further separate the liquid in the impurities. When the impurities are compacted and accumulated to a set amount, the impurities will gradually drive the squeezing plate 71 to move, and the spring 73 will be compressed to move the squeezing plate 71 toward the slag outlet 61 until the slag outlet 61 is opened, and then the compacted impurities are discharged through the slag outlet pipe 63. When the compacted part of the impurities is discharged, the spring 73 can drive the squeezing plate to gradually slide, close the slag outlet 61, and re-squeeze the loose impurities at the rear, thereby further improving the solid-liquid separation effect.

[0044] It should be emphasized that if Figures 8 to 10As shown, the adjustment component 8 also includes a piston 83 slidably arranged in the hydraulic cylinder 81, a fixed sleeve 84 fixedly arranged on the hydraulic cylinder 81, a connecting pipe 85 fixedly connected between the fixed sleeve 84 and the hydraulic cylinder 81, and an oil storage chamber 86 opened on the rotating shaft 3. The fixed pipe 72 is slidably arranged between the slag discharge chamber 62 and the hydraulic cylinder 81 and is fixedly connected to the piston 83. The oil pipe 82 is fixedly arranged between the chute 53 and the oil storage chamber 86. The oil storage chamber 86 is connected to the fixed sleeve 84. Among them, the chute 53, the oil storage chamber 86, the fixed sleeve 84, the connecting pipe 85, the oil pipe 82, and the hydraulic cylinder 81 are all provided with hydraulic oil. When in use, when the extrusion plate When 71 opens the slag outlet 61 for sliding, the piston 83 is driven to slide in the hydraulic cylinder 81 through the fixed tube 72 and the spring 73. The piston 83 pushes the hydraulic oil through the connecting tube 85, the fixed sleeve 84, the oil storage chamber 86, and the oil pipe 82 to be injected into the slide groove 53, pushing the pusher blade 52 to extend outward, thereby increasing the height of the pusher blade 52, increasing the contact area between the pusher blade 52 and the impurities, and increasing the speed at which the pusher blade 52 discharges impurities. When impurities accumulate, since the impurities cannot be discharged, the contact area between the pusher blade 52 and the impurities should be appropriately reduced to reduce the resistance. The height of the pusher blade 52 is less than the height of the impurities when they are discharged.

[0045] It is worth mentioning that Figure 8 and Fig. 9 As shown, the pushing assembly 9 includes a through opening 91 opened on the slag discharge chamber 62, a pushing plate 92 slidably arranged on the through opening 91, a motor 93 fixedly arranged on the shell 2, a screw rod 94 fixedly arranged on the output shaft of the motor 93, a slide plate 95 slidably arranged on the screw rod 94, and a switch 96 fixedly arranged on the slag discharge chamber 62. The slide plate 95 is fixedly connected to the pushing plate 92, the switch 96 cooperates with the extrusion plate 71, and the switch 96 is electrically connected to the motor 93. When the switch 96 is pressed to turn on, the motor 93 is started by an electrical signal, and the screw rod 94 rotates forward and reversely to drive the pushing plate 92 to push back and forth. When the switch 96 pops out and opens and closes, the motor 93 drives the pushing plate 92 to reset and stop the pushing action. The slag discharge pipe 63 is also connected with a pumping device to suck impurities to prevent blockage when the impurities are discharged. A deceleration pattern is provided on the side of the rotating shaft 3 close to the slag discharge chamber 62, so that the extrusion plate 71 reduces part of the moving speed when resetting to prevent interference with the pushing block 92. When in use, when the extrusion plate 71 opens the slag outlet 61, it contacts the switch 96. The switch 96 causes the motor 93 to drive the screw rod 94 to rotate forward and reverse through an electrical signal, thereby driving the push plate 92 to push the impurities back and forth, so that the impurities can be discharged faster. When the extrusion plate 71 is reset, the extrusion plate 71 disengages from the switch 96, and the switch 96 pops out, causing the push plate 92 to reset and stop pushing, thereby preventing the impurities from being difficult to discharge after being compacted, the discharge speed being slow, and the discharge being incomplete.

[0046] Further, such as Figure 3 As shown, the pusher blade 52 extends in a spiral shape along the axial direction of the rotating shaft 3 and a semicircular through groove 10 is provided on the pusher blade 52. The spiral structure can push impurities toward the slag outlet 61, and the through groove 10 can reduce the overall weight of the pusher blade 52.

[0047] like Figure 2 As shown, a liquid outlet pipe 11 is provided below the screen 51 , so that the separated liquid can be discharged from the liquid outlet pipe 11 .

[0048] Embodiment 2

[0049] A method for automatically removing impurities from garbage slurry comprises the following steps:

[0050] Step 1: The garbage slurry is fed from the feed pipe 42 into the feed chamber 41, and the spiral blade 43 feeds it into the push blade 52 and the screen 51;

[0051] Step 2: During the rotation process, the push blade 52 separates the liquid in the garbage slurry through the screen 51 into the liquid outlet pipe 11 and transmits the impurities to the slag outlet 61;

[0052] Step 3: When the impurities are accumulated on the extrusion plate 71 and extruded to a set amount, the impurities push the extrusion plate 71 to the slag outlet 61 and the extrusion plate 71 contacts the switch 96, driving the push plate 92 to push the impurities, so that the impurities are discharged through the slag outlet pipe 63;

[0053] Step 4: When the impurities push the extrusion plate 71 and the piston 83 to slide, the piston 83 injects the hydraulic oil in the hydraulic cylinder 81 into the slide groove 53 through the oil pipe 82, pushing the push blade 52 to extend outward for transmission.

[0054] Working process

[0055] The garbage slurry is input into the feed chamber 41 through the feed pipe 42, and the spiral blade 43 transfers the garbage slurry to the push blade 52 during the rotation process. The push blade 52 separates the liquid and impurities in the garbage slurry under high-speed rotation and transports the impurities axially along the rotating shaft 3. The liquid in the garbage slurry flows out through the screen 51, and the impurities are transferred to the squeezing plate 71 for accumulation. During the accumulation process, the impurities are further squeezed to further separate the liquid in the impurities. When the impurities are compacted and accumulated to a set amount, the impurities will gradually drive the squeezing plate 71 to move, and the spring 73 will be compressed to move the squeezing plate 71 toward the slag outlet 61 until the slag outlet 61 is opened. At the same time, the squeezing plate 71 drives the active The plug 83 slides in the hydraulic cylinder 81, and the piston 83 pushes the hydraulic oil to be injected into the slide groove 53 through the connecting pipe 85, the fixing sleeve 84, the oil storage chamber 86, and the oil pipe 82, pushing the pushing blade 52 to extend outward, thereby increasing the height of the pushing blade 52, increasing the contact surface of the pushing blade 52 with the impurities, and increasing the speed of the pushing blade 52 to discharge impurities. When the extrusion plate 71 fully opens the slag outlet 61, it will contact the switch 96. The switch 96 causes the motor 93 to drive the screw rod 94 to rotate forward and reverse through an electrical signal, driving the pushing plate 92 to push the impurities back and forth, so that the impurities are discharged faster, thereby preventing the problem that the impurities become compacted and difficult to discharge, improving the separation effect, and achieving the effect of automatic impurity removal of the garbage slurry.

[0056] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "front and back", "left and right", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the invention.

[0057] Of course, in the present technical solution, those skilled in the art should understand that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0058] The above description in conjunction with the accompanying drawings is only a preferred embodiment of the present invention, but the present invention is not limited to the above embodiment. It should be pointed out that for those skilled in the art, various modifications and improvements can be made without departing from the structure of the present invention, which should also be regarded as the scope of protection of the present invention and will not affect the effect and practicality of the implementation of the present invention.

Claims

1. A garbage slurry automatic impurity removal device, comprising a frame (1) and a housing (2) arranged on the frame (1), characterized in that: A rotating shaft (3) is arranged in the shell (2), and a feeding assembly (4), a pushing assembly (5) and a slag discharge assembly (6) are arranged on the rotating shaft (3) in sequence. The pushing assembly (5) comprises a screen (51) and a pushing blade (52) arranged on the rotating shaft (3), and the slag discharge assembly (6) comprises a slag discharge port (61) arranged on the shell (2), and an extrusion assembly (7) and an adjustment assembly (8) driven by the extrusion assembly (7) are arranged on the slag discharge port (61), and the extrusion assembly (7) comprises an extrusion plate (71) slidably arranged on the slag discharge port (61), and the adjustment assembly (8) comprises a hydraulic cylinder (81) and a hydraulic cylinder connected between the pushing blade (52) and the hydraulic cylinder. (81), a pushing assembly (9) is arranged on the shell (2), the feeding assembly (4) is used to push the garbage slurry toward the pushing assembly (5), the pushing assembly (5) is used to separate the liquid through the screen (51) and push the impurities toward the slag outlet (61) during the rotation, the extrusion assembly (7) squeezes the liquid in the separated impurities through the extrusion plate (71), the adjustment assembly (8) is used to push the hydraulic oil in the hydraulic cylinder (81) through the oil pipe (82) when the impurities push the extrusion plate (71) to the slag outlet (61) to be discharged, and the pushing assembly (9) is used to push the impurities when they are discharged.

2. The automatic impurity removal device for garbage slurry according to claim 1 is characterized by: The feed assembly (4) comprises a feed chamber (41) opened on the shell (2), a feed pipe (42) fixedly arranged on the shell (2), and a spiral blade (43) fixedly arranged on the rotating shaft (3); the feed chamber (41) is in communication with the feed pipe (42).

3. The automatic impurity removal device for garbage slurry according to claim 1 is characterized by: The pusher assembly (5) further comprises a plurality of slide grooves (53) provided on the rotating shaft (3), a limiting groove (54) provided on the slide groove (53), and a limiting block (55) fixedly arranged on the pusher blade (52); the limiting block (55) cooperates with the limiting groove (54) and a spring is connected between the two; the pusher blade (52) cooperates with the slide groove (53), and the screen (51) is fixedly arranged on the housing (2).

4. The automatic impurity removal device for garbage slurry according to claim 1 is characterized by: The slag discharge assembly (6) further comprises a slag discharge chamber (62) opened on the shell (2) and a slag discharge pipe (63) fixedly arranged on the shell (2); the slag discharge port (61) is in communication with the slag discharge pipe (63).

5. The automatic impurity removal device for garbage slurry according to claim 4 is characterized by: The extrusion assembly (7) further comprises a fixing tube (72) fixedly arranged on the extrusion plate (71) and a spring (73) sleeved on the fixing tube (72); the spring (73) is fixedly connected between the extrusion plate (71) and the slag discharge chamber (62).

6. The automatic impurity removal device for garbage slurry according to claim 5 is characterized by: The regulating assembly (8) further comprises a piston (83) slidably disposed in the hydraulic cylinder (81), a fixed sleeve (84) fixedly disposed on the hydraulic cylinder (81), a connecting pipe (85) fixedly connected between the fixed sleeve (84) and the hydraulic cylinder (81), and an oil storage chamber (86) opened on the rotating shaft (3); the fixed pipe (72) is slidably disposed between the slag discharge chamber (62) and the hydraulic cylinder (81) and fixedly connected to the piston (83); the oil pipe (82) is fixedly disposed between the slide groove (53) and the oil storage chamber (86); and the oil storage chamber (86) is communicated with the fixed sleeve (84).

7. The automatic impurity removal device for garbage slurry according to claim 4 is characterized by: The pushing assembly (9) comprises a through opening (91) provided on the slag discharge chamber (62), a pushing plate (92) slidably arranged on the through opening (91), a motor (93) fixedly arranged on the housing (2), a screw rod (94) fixedly arranged on the output shaft of the motor (93), a slide plate (95) slidably arranged on the screw rod (94), and a switch (96) fixedly arranged on the slag discharge chamber (62), wherein the slide plate (95) is fixedly connected to the pushing plate (92), the switch (96) cooperates with the extrusion plate (71), and the switch (96) is electrically connected to the motor (93).

8. The automatic impurity removal device for garbage slurry according to claim 1 is characterized by: The pusher blade (52) extends in a spiral shape along the axial direction of the rotating shaft (3), and a semicircular through groove (10) is formed on the pusher blade (52).

9. The automatic impurity removal device for garbage slurry according to claim 1 is characterized by: A liquid outlet pipe (11) is provided below the screen (51).

10. A method for automatically removing impurities from garbage slurry, characterized in that: The following steps are involved: Step 1: The garbage slurry is fed from the feed pipe (42) into the feed chamber (41), and the spiral blade (43) feeds it into the push blade (52) and the screen (51); Step 2: During the rotation process, the push blade (52) separates the liquid in the garbage slurry through the screen (51) into the liquid outlet pipe (11) and simultaneously transmits the impurities to the slag outlet (61); Step 3: When the impurities are accumulated on the squeezing plate (71) and squeezed to a set amount, the impurities push the squeezing plate (71) to the slag outlet (61), and the squeezing plate (71) contacts the switch (96), driving the pushing plate (92) to push the impurities, so that the impurities are discharged through the slag outlet pipe (63); Step 5: When the impurities push the extrusion plate (71) and the piston (83) to slide, the piston (83) injects the hydraulic oil in the hydraulic cylinder (81) into the chute (53) through the oil pipe (82), pushing the push blade (52) to extend outward for transmission.

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