Concrete slurry screening device with good screening effect

Abstract

The concrete slurry screening device with the good screening effect comprises a shell, two cleaning shells are symmetrically distributed and fixedly connected to the two opposite sides of the outer wall of the shell, the two cleaning shells are obliquely arranged, and the two ends of each cleaning shell are fixedly connected with a first end cover and a second end cover correspondingly; the two first end covers are arranged on the outer shell, the second end covers are arranged on the outer shell, winding drums are rotatably connected between each first end cover and the corresponding second end cover, a filter screen penetrating into the outer shell is wound between the two winding drums, and one end, extending out of the first end covers, of each winding drum is fixedly connected with a hand wheel. According to the slurry screening device, the part, which does not participate in slurry screening work, of the filter screen enters the shell to continue slurry screening work, and the rolled part of the filter screen is cleaned by introducing high-pressure water flow into the rolling cylinder and spraying the high-pressure water flow to the filter screen from the water spraying holes, so that concrete slurry residues on the filter screen are prevented from being solidified and blocked; therefore, the filter screen can keep a better working effect at any time.

Description

Technical Field

[0001] The utility model belongs to the technical field of concrete slurry screening, in particular to a concrete slurry screening device with good screening effect. Background Art

[0002] Concrete mortar usually needs to be screened during the manufacturing process to screen out material particles that do not meet the requirements. Traditional concrete screening devices use an electric motor to drive the screen cylinder to rotate, and then the materials that meet the size leak out from the screen holes, fall into the screen tank, and are discharged from the device through a discharge pipe. The materials that meet the size leak out from the screen cylinder into the screen tank and are discharged from the device through a discharge pipe, while the materials that do not meet the size remain in the screen cylinder. Then the switch valve is opened to discharge the materials that do not meet the size from the discharge pipe. However, when screening the slurry, concrete slurry is likely to remain in the screen cylinder, causing waste and easily affecting subsequent screening work.

[0003] The Chinese patent with the authorization announcement number CN219923578U discloses a concrete slurry screening device, including a device body, the interior of the device body is hollow, a feed port is provided at the top of the device body, a discharge port is provided at the bottom of the device body, a first filter screen and a second filter screen are sequentially arranged at the top of the inner top of the device body from top to bottom, the aperture of the first filter screen is larger than the aperture of the second filter screen, a first discharge assembly is correspondingly arranged on the first filter screen, and a second discharge assembly is correspondingly arranged on the second filter screen, a partition is provided at the bottom of the device body with a middle portion penetrating therethrough, a cleaning brush is longitudinally slidably connected below the partition, the end of the cleaning brush abuts against the side wall of the device body, and a check valve is provided at the discharge port. Avoid material adhering to the inner wall to prevent affecting subsequent slurry screening.

[0004] However, the above patent has the following disadvantages:

[0005] In the above-mentioned patent, after the concrete slurry is screened, some concrete slurry is likely to remain on the screen. If the concrete slurry is not cleaned in time, the screen will be blocked by the concrete slurry, affecting the screening efficiency and screening effect. Utility Model Content

[0006] The utility model overcomes the deficiencies of the prior art and solves the technical problem that, after a long period of slurry screening work, concrete slurry will remain attached to the surface of the filter screen. At this time, the two hand wheels are rotated to make one reel-up drum reel up the filter screen and the other reel-up drum relax, so that the part of the filter screen that does not participate in the slurry screening work enters the outer shell to continue the slurry screening work, and the reeled part of the filter screen is cleaned by passing high-pressure water flow into the reel-up drum, and the high-pressure water flow is sprayed toward the filter screen from the water spray hole to avoid clogging by the residual solidification of concrete slurry on the filter screen, so as to ensure that the filter screen maintains a good working effect at all times.

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a concrete slurry screening device with good screening effect, comprising an outer shell, two cleaning shells are symmetrically distributed and fixedly connected on two opposite sides of the outer wall of the outer shell, the two cleaning shells are arranged obliquely, and the two ends of each of the cleaning shells are respectively fixedly connected to a first end cover and a second end cover, a winding drum is rotatably connected between each of the first end cover and the corresponding second end cover, a filter screen that penetrates into the outer shell is wound between the two winding drums, and one end of each winding drum extending out of the first end cover is fixedly connected to a hand wheel.

[0008] Turn the two hand wheels to make one reel reel up the filter screen and the other reel loosen, so that the part of the filter screen that does not participate in the pulp screening work enters the shell to continue the pulp screening work, effectively ensuring the screening effect of the filter screen during the pulp screening process.

[0009] By tilting the cleaning shell and the filter screen, the impurity particles after screening can gather to one side, avoiding the accumulation of impurity particles on the surface of the filter screen to hinder the screening of the slurry, and also facilitating the cleaning and collection of impurity particles.

[0010] Furthermore, each of the winding drums is hollow inside, and each of the winding drums is provided with a plurality of water spray holes evenly distributed, and each of the second end covers is provided with through holes evenly distributed in a circumferential direction, and a sealing plug is fixedly connected to the hand wheel, and one end of each winding drum extending out of the first end cover is fixedly connected to a hose, and the bottom end of each hose is fixedly connected to a water pump, and the two ends of the two water pumps away from the hoses are fixedly connected to a water tank.

[0011] The retracted part of the filter is cleaned by passing high-pressure water into the reel, and then sprayed from the water spray hole to the filter to avoid clogging by the solidification of residual concrete slurry on the filter, so as to ensure that the filter always maintains a good working effect, reduce the cleaning and maintenance costs of the device, and increase its service life.

[0012] Furthermore, a collecting hopper is fixedly connected to the bottom of the shell, a ball valve is fixedly connected to the bottom of the collecting hopper, a top plate is fixedly connected to the top of the shell, and a hopper is fixedly connected to the upper side of the top plate.

[0013] In summary, compared with the prior art, the beneficial effects of the present invention are:

[0014] By turning the two hand wheels, one reel reels up the filter screen while the other reel loosens it, so that the part of the filter screen that does not participate in the pulp screening work enters the outer shell to continue the pulp screening work, effectively ensuring the screening effect of the filter screen during the pulp screening process.

[0015] By introducing high-pressure water into the reel and spraying it out from the water spray hole, the filter screen is cleaned to avoid clogging by the solidification of residual concrete slurry on the filter screen, so as to ensure that the filter screen always maintains a good working effect, reduce the cleaning and maintenance costs of the device, and increase its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is the overall front view of the utility model;

[0018] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model at AA;

[0019] Figure 4 It is a schematic diagram of the enlarged structure of the utility model B;

[0020] Figure 5 It is a structural schematic diagram of some parts of the utility model; DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the present invention.

[0022] refer to Figure 1-5 A concrete slurry screening device with good screening effect includes a shell 66, two cleaning shells 34 are symmetrically distributed and fixedly connected on opposite sides of the outer wall of the shell 66, the two cleaning shells 34 are arranged obliquely, and the two ends of each cleaning shell 34 are respectively fixedly connected with a first end cover 35 and a second end cover 38, a reel 44 is rotatably connected between each first end cover 35 and the corresponding second end cover 38, a filter screen 46 that penetrates into the shell 66 is wound between the two reel 44, and a hand wheel 36 is fixedly connected to one end of each reel 44 extending out of the first end cover 35.

[0023] By tilting the cleaning shell 34 and the filter screen 46 , the sieved impurity particles can gather to one side, avoiding the impurity particles from accumulating on the surface of the filter screen 46 to hinder the slurry screening work, and also facilitating the cleaning and collection of the impurity particles.

[0024] refer to Figure 1-35. Each winding drum 44 is hollow inside, and each winding drum 44 is provided with a plurality of water spray holes 45 evenly distributed. Each second end cover 38 is provided with through holes 39 evenly distributed in the circumferential direction. A sealing plug 47 is fixedly connected to the hand wheel 36. One end of each winding drum 44 extending out of the first end cover 35 is fixedly connected to a hose 37, and the bottom end of each hose 37 is fixedly connected to a water pump 40. Both ends of the two water pumps 40 away from the hose 37 are fixedly connected to a water tank 41.

[0025] refer to Figure 3 The bottom of the shell 66 is fixedly connected with a collecting hopper 43, the bottom of the collecting hopper 43 is fixedly connected with a ball valve 42, the top of the shell 66 is fixedly connected with a top plate 32, and the upper side of the top plate 32 is fixedly connected with a hopper 33.

[0026] In this embodiment, initially, the operator injects a sufficient amount of clean water into the water tank 41. At this time, the filter screen 46 is fixed and wound on one reel 44, while the other reel 44 is only fixed to one end of the filter screen 46. The filter screen 46 is straightened by the two reel 44, and the ball valve 42 is in a closed state.

[0027] When slurry screening is required, the operator puts concrete slurry into the device from the hopper 33, and the concrete slurry falls on the surface of the filter screen 46. The fine mortar passes through the holes of the filter screen 46 and falls on the collecting bucket 43 for collection, while the impurity particles with larger diameters are retained by the filter screen 46. Due to the inclined setting of the filter screen 46, the impurity particles move to the lower end of the filter screen 46, avoiding the accumulation of impurity particles on the surface of the filter screen 46 to hinder the slurry screening work, and also facilitating the cleaning and collection of impurity particles.

[0028] After the slurry screening work during the trial period, or when the slurry screening work is completed, concrete slurry will remain on the surface of the filter screen 46. At this time, the operator synchronously rotates the two hand wheels 36 to make one reel 44 reel in the filter screen 46 and the other reel 44 relax, so that the part of the filter screen 46 that does not participate in the slurry screening work enters the outer shell 66 to continue the slurry screening work, while the part of the filter screen 46 that remains attached with concrete slurry is reeled into the corresponding cleaning shell 34.

[0029] At this time, the corresponding water pump 40 is started to draw water from the water tank 41, and a high-pressure water flow is injected into the corresponding reel 44, and the high-pressure water flow is sprayed from the water spray hole 45 to the reeled part of the filter screen 46 to clean the filter screen 46 to avoid clogging caused by the solidification of the residual concrete slurry on the filter screen 46. The sewage generated after cleaning flows to one end of the second end cover 38 due to the inclined setting of the cleaning shell 34 and is finally discharged from the through hole 39.

[0030] During the process of replacing the retracted state of the filter screen 46, the sealing plug 47 moves with the filter screen 46 and blocks the gap between the cleaning shell 34 and the filter screen 46, thereby preventing water from leaking into the outer shell 66 when water is injected into the cleaning shell 34 for cleaning, thereby avoiding affecting the pulp screening work.

[0031] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect.

[0032] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.

[0033] The above description shows and describes several preferred embodiments of the present application, but as mentioned above, it should be understood that the present application is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the application concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the present application, and should be within the scope of protection of the claims attached to the present application.

Claims

1. A concrete slurry screening device with good screening effect, characterized in that: The invention comprises an outer shell (66), two cleaning shells (34) are symmetrically distributed and fixedly connected on two opposite sides of the outer wall of the outer shell (66), the two cleaning shells (34) are arranged obliquely, and the two ends of each cleaning shell (34) are respectively fixedly connected with a first end cover (35) and a second end cover (38), a reel (44) is rotatably connected between each first end cover (35) and the corresponding second end cover (38), a filter screen (46) is wound between the two reeling drums (44) and penetrates into the outer shell (66), and one end of each reeling drum (44) extending out of the first end cover (35) is fixedly connected with a hand wheel (36).

2. A concrete slurry screening device with good screening effect according to claim 1, characterized in that: Each of the reeling drums (44) is hollow inside, and each of the reeling drums (44) is provided with a plurality of water spray holes (45) evenly distributed.

3. A concrete slurry screening device with good screening effect according to claim 1, characterized in that: Each of the second end covers (38) is provided with through holes (39) evenly distributed in the circumferential direction, and a sealing plug (47) is fixedly connected to the hand wheel (36).

4. A concrete slurry screening device with good screening effect according to claim 1, characterized in that: One end of each of the reel-up drums (44) extending out of the first end cover (35) is fixedly connected to a hose (37), and the bottom end of each of the hoses (37) is fixedly connected to a water pump (40).

5. A concrete slurry screening device with good screening effect according to claim 4, characterized in that: The two ends of the two water pumps (40) away from the hose (37) are fixedly connected to a water tank (41).

6. A concrete slurry screening device with good screening effect according to claim 1, characterized in that: The bottom of the housing (66) is fixedly connected to a collecting bucket (43), and the bottom of the collecting bucket (43) is fixedly connected to a ball valve (42).

7. A concrete slurry screening device with good screening effect according to claim 1, characterized in that: A top plate (32) is fixedly connected to the top of the shell (66), and a hopper (33) is fixedly connected to the upper side of the top plate (32).

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