High-efficiency energy-saving concrete slurry screening equipment

Abstract

The invention relates to the technical field of concrete slurry screening, in particular to high-efficiency energy-saving concrete slurry screening equipment which comprises a workbench, a slurry screening mechanism for concrete slurry screening is arranged on the workbench, and a vibration mechanism for assisting the slurry screening mechanism in concrete slurry screening is arranged on the workbench. A dust falling mechanism for reducing dust diffusion is arranged on the workbench; the pulp screening mechanism comprises a screening drum rotating in an inner cavity of the working table, a sealing cover for sealing one end of the screening drum is arranged on the working table in a sliding mode, and the sealing cover slides to a certain position on the working table and then is sealed with the screening drum; according to the high-efficiency energy-saving concrete slurry screening equipment, the screen drum is sealed through the sealing cover, the screen drum rotates in the cavity in the workbench for slurry screening, a closed space can be created, slurry screening is conducted in the closed space, dust can be prevented from being diffused to the external environment, on one hand, pollution to the environment is reduced, and on the other hand, the environment is protected; and on the other hand, the working environment of workers can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of concrete slurry screening, in particular to a high-efficiency energy-saving concrete slurry screening device. Background Art

[0002] Concrete screening refers to the process of separating the slurry (a mixture of cement slurry and fine aggregate) in concrete through screening equipment. At present, in some concrete screening processes, fine particles such as cement, fly ash, mineral powder, etc. in some dry and hard concrete are prone to form dust during the screening process. These dusts spread into the air, which affects the environmental quality on the one hand and the working environment of the staff on the other. Summary of the invention

[0003] The purpose of the present invention is to provide a high-efficiency and energy-saving concrete slurry screening equipment. The sieve drum is sealed with a cover, and the sieve drum is rotated in the internal cavity of the workbench to screen the slurry, thereby creating a closed space. Screening the slurry in the closed space can prevent dust from spreading to the external environment, thereby reducing pollution to the environment on the one hand and improving the working environment of the staff on the other hand.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a high-efficiency and energy-saving concrete slurry screening equipment, comprising a workbench, a slurry screening mechanism for concrete slurry screening is arranged on the workbench, a vibration mechanism for assisting the slurry screening mechanism for concrete slurry screening is arranged on the workbench, and a dust reduction mechanism for reducing dust diffusion is arranged on the workbench; the slurry screening mechanism includes a sieve drum rotating in the internal cavity of the workbench, a sealing cover sliding on the workbench to close one end of the sieve drum, and the sealing cover is closed with the sieve drum after sliding to a certain position on the workbench; the vibration mechanism includes a vertical rod sliding on the workbench, one end of the vertical rod extending into the internal cavity of the workbench, and a sealing cylinder is fixed on the top of one end of the internal cavity of the workbench, a special-shaped rod sliding on the sealing cylinder, the special-shaped rod is I-shaped and the outer sides of both ends are in contact with the inner wall of the sealing cylinder, and one end of the special-shaped rod is movably connected to the outer side of one end of the sieve drum The top of the sealing cylinder is connected, and the top of the sealing cylinder is connected to a piston assembly, and a first push piece is installed at the bottom of the piston assembly; in the process that one end of the vertical rod extends to a certain position in the internal cavity of the workbench and is flush with the concrete liquid surface, the vertical rod contacts and squeezes the first push piece on the piston assembly, and the internal pressure of the sealing cylinder is changed by the piston assembly; the dust reduction mechanism includes a water storage barrel located on the workbench, a water control disc is slidably provided inside the water storage barrel, one end of the water control disc is connected to the water storage barrel, and the water control disc passes through one end of the water storage barrel and is connected to the vertical rod, the bottom of the water storage barrel is connected to a first water pipe, one end of the first water pipe is connected to a second water pipe, a spray pipe with a spray head located in the internal cavity of the workbench is installed below the second water pipe, a water pump connected to the first water pipe is installed inside the water storage barrel, and a water pipe connected to an external water source is installed on the outside.

[0005] Preferably, a motor is fixed to one side of the workbench, and an output end of the motor extends to an internal cavity of the workbench and is fixedly connected to a screen drum.

[0006] Preferably, the sieve drum rotates in the inner cavity of the workbench, and sliding rods sliding on the workbench are fixed on both sides of the cover.

[0007] Preferably, a hydraulic rod is installed on the top of the vertical rod, a limiting rod is installed on the bottom of the vertical rod, the limiting rod slides on the workbench, a second push piece is installed on one side of the limiting rod, and a scale is opened on the other side surface of the limiting rod.

[0008] Preferably, an impact ball is installed at one end of the special-shaped rod, and an extrusion sheet is installed on the outer side of one end of the screen cylinder, and the impact ball is movably connected to the extrusion sheet.

[0009] Preferably, a one-way valve is provided at the communicating portion between the piston assembly and the sealing cylinder, and a first push plate and a second push plate at the bottom of the piston assembly are movably connected.

[0010] Preferably, a bracket is fixed on the workbench, the water storage barrel is fixedly installed on the bracket, the water control tray is T-shaped, and a connecting rod is installed at one end of the water control tray passing through the water storage barrel, and one end of the connecting rod is connected to the vertical rod.

[0011] Preferably, the water storage barrel is made of a transparent material, and there may be a mark on the outside of the water storage barrel.

[0012] Preferably, the hydraulic rod is fixedly mounted on one side of the bracket.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The present invention uses a cover to seal the screen drum, and uses the screen drum to rotate in the internal cavity of the workbench to screen the pulp, which can create a closed space. Screening the pulp in the closed space can prevent dust from spreading to the external environment, which can reduce pollution to the environment on the one hand, and improve the working environment of the staff on the other hand.

[0015] 2. After the concrete slurry is poured into the screen cylinder, the vertical rod is slid, and the vertical rod drives the limiting rod to move. The limiting rod slides on the workbench until the bottom end of the limiting rod moves to be flush with the liquid surface of the concrete slurry, and then the screen cylinder is closed with a cover. The amount of concrete slurry poured into the screen cylinder can be visually checked through the scale on the limiting rod, so that an appropriate amount of concrete slurry can be screened to avoid excessive burden on the machine caused by excessive concrete slurry. The screening efficiency can be further improved, and quantitative screening can be performed, which is convenient for staff to record and facilitate subsequent work.

[0016] 3. The present invention uses a water pump to transport the water in the water storage barrel to the inside of the second water delivery pipe through the first water delivery pipe, and then transports it to the inside of the spray pipe through the second water delivery pipe. The water is then sprayed onto the surface of the concrete slurry by the spray head of the spray pipe located in the inner cavity of the workbench to moisten it, thereby suppressing dust and reducing pollution. In addition, through the design of the linkage between the water control plate and the limiting rod, the amount of water in the water storage barrel can be automatically adjusted according to the amount of concrete slurry in the screen drum, thereby automatically controlling the amount of water required for spraying according to the amount of concrete slurry. While spraying an appropriate amount of water can suppress dust, it can also prevent excessive water from mixing into the concrete slurry and affecting the slurry screening work. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 The second schematic diagram of the overall structure of the present invention;

[0019] Figure 3 This is a cross-sectional view of a workbench according to the present invention;

[0020] Figure 4 This is the second cross-sectional view of the workbench of the present invention;

[0021] Figure 5 The third cross-sectional view of the workbench of the present invention;

[0022] Figure 6 For the present invention Figure 5 Enlarged view of part A in the middle;

[0023] Figure 7 It is the fourth cross-sectional view of the workbench of the present invention.

[0024] In the figure: 1. workbench; 2. pulp screening mechanism; 21. motor; 22. sealing cover; 23. screen cylinder; 24. mounting plate; 25. slide rod; 3. vibration mechanism; 31. vertical rod; 32. limiting rod; 33. sealing cylinder; 34. special-shaped rod; 35. impact ball; 36. extrusion plate; 37. piston assembly; 38. first push plate; 39. second push plate; 310. hydraulic rod; 4. dust suppression mechanism; 41. bracket; 42. water storage barrel; 43. first water pipe; 44. second water pipe; 45. connecting rod; 46. spray pipe; 47. water control tray. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] The present invention provides a high-efficiency energy-saving concrete slurry screening equipment, comprising a workbench 1, a slurry screening mechanism 2 for screening concrete slurry is arranged on the workbench 1, a vibration mechanism 3 for assisting the slurry screening mechanism 2 for screening concrete slurry is arranged on the workbench 1, and a dust reduction mechanism 4 for reducing dust diffusion is arranged on the workbench 1;

[0027] The pulp screening mechanism 2 includes a screen cylinder 23 rotating in the internal cavity of the workbench 1, and a cover 22 slidingly closes one end of the screen cylinder 23 on the workbench 1, and the cover 22 closes the screen cylinder 23 after sliding to a certain position on the workbench 1; a motor 21 is fixed on one side of the workbench 1, and the output end of the motor 21 extends to the internal cavity of the workbench 1 and is fixedly connected to the screen cylinder 23, and the screen cylinder 23 rotates in the internal cavity of the workbench 1, and sliding rods 25 sliding on the workbench 1 are fixed on both sides of the cover 22;

[0028] See also Figures 1 to 5As shown, after the concrete slurry is transported to the interior of the screen drum 23, the slide bar 25 is slid on the workbench 1 to connect the cover 22 to the workbench 1 and seal the screen drum 23, and then the motor 21 is started, and the output end of the motor 21 drives the screen drum 23 to rotate, thereby screening the concrete slurry; the screen drum 23 is sealed by the cover 22, and the screen drum 23 is rotated in the internal cavity of the workbench 1 to screen the slurry, so that a closed space can be created. Screening the slurry in the closed space can prevent dust from spreading to the external environment, which can reduce pollution to the environment on the one hand, and improve the working environment of the staff on the other hand;

[0029] The vibration mechanism 3 includes a vertical rod 31 sliding on the workbench 1, one end of the vertical rod 31 extends to the internal cavity of the workbench 1, and a sealing cylinder 33 is fixed on the top of one end of the internal cavity of the workbench 1, and a special-shaped rod 34 slides on the sealing cylinder 33, the special-shaped rod 34 is I-shaped and the outer sides of both ends are in contact with the inner wall of the sealing cylinder 33, and one end of the special-shaped rod 34 is movably connected to the outer side of one end of the screen cylinder 23, and the top of the sealing cylinder 33 is connected to a piston assembly 37, and a first push piece 38 is installed at the bottom of the piston assembly 37; when one end of the vertical rod 31 extends to a certain position in the internal cavity of the workbench 1 and is flush with the concrete liquid surface, the vertical rod 31 and the first push piece on the piston assembly 37 38 contacts and squeezes it, and changes the internal pressure of the sealing cylinder 33 through the piston assembly 37; a hydraulic rod 310 is installed on the top of the vertical rod 31, and a limiting rod 32 is installed at the bottom of the vertical rod 31. The limiting rod 32 slides on the workbench 1, and a second push piece 39 is installed on one side of the limiting rod 32, and a scale is opened on the other side surface of the limiting rod 32. An impact ball 35 is installed at one end of the special-shaped rod 34, and an extrusion piece 36 is installed on the outer side of one end of the screen cylinder 23. The impact ball 35 is movably connected with the extrusion piece 36. A one-way valve is provided at the communication portion between the piston assembly 37 and the sealing cylinder 33, and the first push piece 38 at the bottom of the piston assembly 37 is movably connected with the second push piece 39;

[0030] See also Figures 2 to 7 As shown, after the concrete slurry is poured into the screen drum 23, the vertical rod 31 is slid, and the vertical rod 31 drives the limiting rod 32 to move, and the limiting rod 32 slides on the workbench 1 until the bottom end of the limiting rod 32 moves to be flush with the liquid surface of the concrete slurry, and then the screen drum 23 is closed by the cover 22, thereby the amount of concrete slurry poured into the screen drum 23 can be visually checked through the scale on the limiting rod 32, thereby the appropriate amount of concrete slurry can be screened, avoiding excessive burden on the machine caused by excessive concrete slurry, thereby further improving its screening efficiency, and quantitative screening can be carried out, which can be convenient for the staff to record and facilitate subsequent work;

[0031] In addition, during the movement of the limiting rod 32, the limiting rod 32 drives the second push piece 39 to move. If the slurry poured into the screen drum 23 is within a certain amount range, the sliding distance of the limiting rod 32 on the workbench 1 is within a certain range, and the second push piece 39 on the limiting rod 32 does not contact the first push piece 38 on the piston assembly 37. At this time, during the rotation of the screen drum 23 to screen the slurry, the extrusion piece 36 at one end of the screen drum 23 contacts and squeezes the impact ball 35. By squeezing the impact ball 35, the impact ball 35 drives the special-shaped rod 34 at one end to move inside the sealing cylinder 33. Since the interior of the sealing cylinder 33 is divided into several sealed spaces by the two ends of the special-shaped rod 34, after the special-shaped rod 34 moves inside the sealing cylinder 33, the pressure change inside the sealing cylinder 33 forces the special-shaped rod 34 to reset, and the special-shaped rod 34 drives the impact ball 35 to reset, so that the impact ball 35 hits the screen cylinder 23, thereby during the rotation of the screen cylinder 23, the impact ball 35 continuously hits the screen cylinder 23, so that the screen cylinder 23 rotates and vibrates slightly, thereby preventing the screen cylinder 23 from being blocked by some impurities during the screening process, thereby affecting the screening efficiency of the screen cylinder 23;

[0032] In addition, when too little slurry is poured into the screen cylinder 23, the downward movement distance of the limiting rod 32 is relatively large. At this time, the second push piece 39 on the limiting rod 32 will contact the first push piece 38 on the piston assembly 37, and the second push piece 39 will drive the first push piece 38 to move downward, and the first push piece 38 will drive the piston rod on the piston assembly 37 to move downward, thereby extracting the internal gas of the piston cylinder on the piston assembly 37 through the piston rod. Since the piston cylinder on the piston assembly 37 is connected to the sealing cylinder 33, a certain amount of gas in the sealing cylinder 33 can be extracted, thereby changing the internal air pressure of the sealing cylinder 33, and then controlling one end of the special-shaped rod 34 to hit the ball 34. 5 squeezes the screen cylinder 23; therefore, if the amount of slurry poured into the screen cylinder 23 is small, the limiting rod 32 moves down a long distance, and at this time, the second push piece 39 drives the first push piece 38 to move down a long distance, and the piston assembly 37 extracts more gas inside the sealing cylinder 33, which will reduce the internal air pressure of the sealing cylinder 33, thereby reducing the squeezing force of the impact ball 35 at one end of the special-shaped rod 34 on the screen cylinder 23. Therefore, when the amount of slurry is small, the impact force of the impact ball 35 on the screen cylinder 23 can be controlled, and on the basis of preventing the screen cylinder 23 from being blocked, the impact force of the impact ball 35 on the screen cylinder 23 is reduced, thereby increasing the service life of the screen cylinder 23;

[0033] In addition, the impact ball 35 is made of elastic material to prevent the impact ball 35 from hitting the screen cylinder 23 and causing damage to the screen cylinder 23. After the slurry screening is completed, the exhaust pipe installed on one side of the piston assembly 37 can be used to restore the internal pressure of the piston cylinder on the piston assembly 37 to its initial state; and a certain amount of gas is filled into the interior of the sealing cylinder 33 according to actual conditions, so that in its initial state, the impact ball 35 is in contact with the screen cylinder 23, and there is a certain extrusion force between them.

[0034] The dust suppression mechanism 4 includes a water storage bucket 42 located on the workbench 1, a water control disc 47 is slidably disposed inside the water storage bucket 42, one end of the water control disc 47 is connected to the water storage bucket 42, and one end of the water control disc 47 is connected to the vertical rod 31 through the water storage bucket 42, a first water delivery pipe 43 is connected to the bottom of the water storage bucket 42, one end of the first water delivery pipe 43 is connected to the second water delivery pipe 44, a spray pipe 46 with a spray head located in the inner cavity of the workbench 1 is installed below the second water delivery pipe 44, and the water storage bucket 42 is connected to the first water delivery pipe 43. A water pump connected to the first water delivery pipe 43 is installed inside, and a water delivery pipe connected to an external water source is installed outside; a bracket 41 is fixed on the workbench 1, a water storage bucket 42 is fixedly installed on the bracket 41, a water control plate 47 is T-shaped, and a connecting rod 45 is installed at one end of the water control plate 47 that passes through the water storage bucket 42, one end of the connecting rod 45 is connected to the vertical rod 31, the water storage bucket 42 is made of transparent material, and the outside of the water storage bucket 42 may have a mark, and a hydraulic rod 310 is fixedly installed on one side of the bracket 41;

[0035] See also Figures 3 to 7 As shown, in the process of the vertical rod 31 moving downward, the vertical rod 31 drives the connecting rod 45 to move, and the connecting rod 45 drives the water control disc 47 to move, so that the top of the water control disc 47 moves inside the water storage barrel 42. After the bottom of the limiting rod 32 is flush with the liquid surface of the concrete slurry, the top of the water control disc 47 is at a certain position inside the water storage barrel 42. At this time, water is added to the inside of the water storage barrel 42 using the water receiving pipe outside the water storage barrel 42 until the water surface contacts the top and bottom surfaces of the water control disc 47. Then, during the process of sieving the slurry by the screen drum 23, the water pump is started, and the water pump transports the water inside the water storage barrel 42 to the second water delivery pipe 43 through the first water delivery pipe The water in the water tank 42 is automatically adjusted according to the amount of concrete slurry in the screen drum 23 through the design of linkage between the water control tray 47 and the limiting rod 32. Thus, the amount of water required for spraying can be automatically controlled according to the amount of concrete slurry. While spraying an appropriate amount of water can suppress dust, it can also prevent excessive water from mixing into the concrete slurry and affecting the slurry screening work.

[0036] In addition, when the vertical rod 31 is moved, the hydraulic rod 310 can be started to make the hydraulic rod 310 slide instead of manpower, which can save manpower and improve work efficiency.

[0037] Working principle: After the concrete slurry is transported to the inside of the screen drum 23, after the concrete slurry is poured into the inside of the screen drum 23, the vertical rod 31 is slid, and the vertical rod 31 drives the limiting rod 32 to move, and the limiting rod 32 slides on the workbench 1 until the bottom end of the limiting rod 32 moves to be flush with the liquid surface of the concrete slurry, and then the screen drum 23 is closed by the cover 22, thereby the amount of concrete slurry poured into the screen drum 23 can be visually checked through the scale on the limiting rod 32, so that the appropriate amount of concrete slurry can be screened;

[0038] The slide bar 25 is used to slide on the workbench 1 to connect the cover 22 with the workbench 1 and close the screen drum 23, and then the motor 21 is started. The output end of the motor 21 will drive the screen drum 23 to rotate, thereby screening the concrete slurry; during the movement of the limiting rod 32, the limiting rod 32 drives the second push piece 39 to move. If the slurry poured into the screen drum 23 is within a certain amount range, the sliding distance of the limiting rod 32 on the workbench 1 is within a certain range, and the second push piece 39 on the limiting rod 32 does not contact the first push piece 38 on the piston assembly 37. At this time, during the rotation of the screen drum 23 to screen the slurry, the extrusion piece 36 at one end of the screen drum 23 contacts the impact ball 35 Extrusion: by squeezing the impact ball 35, the impact ball 35 drives the special-shaped rod 34 at one end to move inside the sealing cylinder 33. Since the interior of the sealing cylinder 33 is divided into several sealed spaces by the two ends of the special-shaped rod 34, after the special-shaped rod 34 moves inside the sealing cylinder 33, the pressure change inside the sealing cylinder 33 forces the special-shaped rod 34 to reset, and the special-shaped rod 34 drives the impact ball 35 to reset, so that the impact ball 35 hits the screen cylinder 23. Therefore, during the rotation of the screen cylinder 23, the impact ball 35 continuously hits the screen cylinder 23, causing the screen cylinder 23 to vibrate slightly while rotating, thereby preventing the screen cylinder 23 from being blocked by some impurities during the screening process, thereby affecting the screening efficiency of the screen cylinder 23;

[0039] During the downward movement of the vertical rod 31, the vertical rod 31 drives the connecting rod 45 to move, and the connecting rod 45 drives the water control disc 47 to move, so that the top of the water control disc 47 moves inside the water storage barrel 42. After the bottom of the limiting rod 32 is flush with the liquid surface of the concrete slurry, the top of the water control disc 47 is at a certain position inside the water storage barrel 42. At this time, water is added to the inside of the water storage barrel 42 using the water receiving pipe outside the water storage barrel 42 until the water surface contacts the top and bottom surfaces of the water control disc 47. Then, during the slurry screening process of the screen drum 23, the water pump is started, and the water pump transports the water inside the water storage barrel 42 to the second water delivery pipe through the first water delivery pipe 43. 44, and then transported to the inside of the spray pipe 46 by the second water pipe 44, and then sprayed to the surface of the concrete slurry by the spray head of the spray pipe 46 located in the internal cavity of the workbench 1 to moisten it, thereby suppressing dust and reducing pollution. In addition, through the design of the linkage between the water control plate 47 and the limiting rod 32, the water amount in the water storage barrel 42 can be automatically adjusted according to the amount of concrete slurry in the screen drum 23, thereby automatically controlling the amount of water required for spraying according to the amount of concrete slurry. While spraying an appropriate amount of water can suppress dust, it can avoid too much water mixing into the concrete slurry to affect the slurry screening work.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency and energy-saving concrete slurry screening device, comprising a workbench (1), characterized in that: The workbench (1) is provided with a slurry screening mechanism (2) for screening concrete slurry, the workbench (1) is provided with a vibration mechanism (3) for assisting the slurry screening mechanism (2) in sieving concrete slurry, and the workbench (1) is provided with a dust suppression mechanism (4) for reducing dust diffusion; the slurry screening mechanism (2) comprises a slurry drum (23) rotating in the internal cavity of the workbench (1), a cover (22) sliding on the workbench (1) for sealing one end of the slurry drum (23), the cover (22) sliding on the workbench (1) to a certain position and sealing the slurry drum (23); the vibration mechanism (3) comprises a vertical rod (31) sliding on the workbench (1), one end of the vertical rod (31) extending to the internal cavity of the workbench (1), and a sealing cylinder (33) fixed to the top of one end of the internal cavity of the workbench (1), a special-shaped rod (34) sliding on the sealing cylinder (33), and the special-shaped rod (34) is in the shape of a workpiece. The shaped rod (34) is movably connected to the outer side of one end of the screen cylinder (23), and the top of the sealing cylinder (33) is connected to a piston assembly (37), and the bottom of the piston assembly (37) is provided with a first push piece (38); the dust suppression mechanism (4) comprises a water storage bucket (42) located on the workbench (1), a water control disc (47) is slidably arranged inside the water storage bucket (42), one end of the water control disc (47) is connected to the water storage bucket (42), and one end of the water control disc (47) is connected to the vertical rod (31) through the water storage bucket (42), and the bottom of the water storage bucket (42) is connected to a first water pipe (43), one end of the first water pipe (43) is connected to a second water pipe (44), and a spray pipe (46) with a spray head located in the inner cavity of the workbench (1) is installed below the second water pipe (44).

2. A high-efficiency energy-saving concrete slurry screening equipment according to claim 1, characterized in that: A motor (21) is fixed to one side of the workbench (1), and an output end of the motor (21) extends to an internal cavity of the workbench (1) and is fixedly connected to a screen drum (23).

3. The high-efficiency energy-saving concrete slurry screening equipment according to claim 1 is characterized in that: The sieve drum (23) rotates in the internal cavity of the workbench (1), and sliding rods (25) that slide on the workbench (1) are fixed on both sides of the cover (22).

4. The high-efficiency energy-saving concrete slurry screening equipment according to claim 1, characterized in that: When one end of the vertical rod (31) extends to a certain position in the internal cavity of the workbench (1) and is flush with the concrete liquid surface, the vertical rod (31) contacts and squeezes the first push piece (38) on the piston assembly (37), thereby changing the internal pressure of the sealing cylinder (33) through the piston assembly (37); a hydraulic rod (310) is installed on the top of the vertical rod (31), and a limiting rod (32) is installed on the bottom of the vertical rod (31). The limiting rod (32) slides on the workbench (1), and a second push piece (39) is installed on one side of the limiting rod (32). The other side surface of the limiting rod (32) is provided with a scale.

5. The high-efficiency energy-saving concrete screening equipment according to claim 1, characterized in that: An impact ball (35) is installed at one end of the special-shaped rod (34), and an extrusion sheet (36) is installed on the outer side of one end of the screen cylinder (23), and the impact ball (35) is movably connected to the extrusion sheet (36).

6. The high-efficiency energy-saving concrete slurry screening equipment according to claim 4, characterized in that: A one-way valve is provided at the communicating portion between the piston assembly (37) and the sealing cylinder (33), and a first push piece (38) and a second push piece (39) at the bottom of the piston assembly (37) are movably connected.

7. The high-efficiency energy-saving concrete screening equipment according to claim 4, characterized in that: A water pump connected to a first water delivery pipe (43) is installed inside the water storage barrel (42), and a water delivery pipe connected to an external water source is installed outside. A bracket (41) is fixed on the workbench (1), and the water storage barrel (42) is fixedly mounted on the bracket (41). The water control disc (47) is T-shaped, and a connecting rod (45) is installed at one end of the water control disc (47) that passes through the water storage barrel (42), and one end of the connecting rod (45) is connected to the vertical rod (31).

8. The high-efficiency energy-saving concrete slurry screening equipment according to claim 1, characterized in that: The water storage barrel (42) is made of a transparent material, and a mark may be provided on the outside of the water storage barrel (42).

9. The high-efficiency energy-saving concrete screening equipment according to claim 7, characterized in that: The hydraulic rod (310) is fixedly mounted on one side of the bracket (41).

Images