Screening equipment for cement fineness detection

Abstract

The utility model relates to the technical field of cement fineness detection, and discloses a screening device for cement fineness detection, which comprises a bottom plate, foot pads are fixedly mounted below the bottom plate, a vertical plate is fixedly mounted above the bottom plate, a screening assembly is arranged on the outer side of the bottom plate, and the vertical plate is fixedly mounted above the bottom plate. The screening assembly comprises a hinge block, and the hinge block is fixedly installed above the bottom plate. According to the screening equipment for cement fineness detection, in order to further enhance the screening effect of the equipment, a screening assembly is arranged and matched with a hinge block on a bottom plate to enable a shaking plate to flexibly swing, a hydraulic rod hinged to a vertical plate provides power for the shaking plate, regular shaking actions are achieved, a motor on the shaking plate drives a cam, and the screening effect is improved. The cam drives the upper screening cylinder through the connecting rod, the screening effect is enhanced, the screening filter plate in the upper screening cylinder conducts fineness screening on cement, the sealing ring ensures the sealing performance between the upper screening cylinder and the lower collecting cylinder, and cement leakage is prevented.

Description

Technical Field

[0001] This utility model relates to the field of cement fineness testing technology, specifically a screening device for cement fineness testing. Background Technology

[0002] Screening equipment for cement fineness testing plays a crucial role in the cement industry. Its core function is to accurately determine the fineness of cement through negative pressure sieving, ensuring that the quality of cement meets relevant standards. Cement fineness is an important indicator for measuring the coarseness of cement particles and has a significant impact on the workability, strength development, and durability of cement.

[0003] The screening equipment for cement fineness testing mainly consists of a housing, a sieve base, a barrel-type dust collector, and a digital display time controller. Its working principle utilizes airflow as the driving medium for screening. Under negative pressure, the airflow ejected through rotating nozzles causes the powder material to be tested within the sieve to flow in a fluid state, moving with the airflow. Fine particles smaller than the sieve aperture are carried through the sieve and collected, while coarse particles larger than the sieve aperture remain on the sieve, thus achieving screening. The operation is simple and convenient; simply place the sample in the sample box and follow the corresponding operating procedures. This equipment boasts advantages such as fast screening speed, high precision, and good repeatability. Its ease of operation eliminates the need for tedious adjustments and operations by testing personnel, significantly improving testing efficiency and effectiveness.

[0004] However, the above-mentioned equipment has poor screening effect in actual use, which cannot guarantee the accuracy and efficiency of the screening work, and makes it impossible to carry out the cement fineness screening work smoothly. In view of this, we propose a screening device for cement fineness detection. Utility Model Content

[0005] The purpose of this invention is to provide a screening device for cement fineness testing, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a screening device for cement fineness testing, comprising a base plate, a pad fixedly installed below the base plate, a vertical plate fixedly installed above the base plate, and a screening assembly disposed on the outer side of the base plate, the screening assembly comprising:

[0007] A hinge block is fixedly installed above the base plate. A rocking plate is hinged to the outside of the hinge block. One end of a hydraulic rod is hinged to the outside of the vertical plate. A lower collecting cylinder is fixedly installed above the base plate. One end of a hinge frame is fixedly installed above the rocking plate. An upper screening cylinder is hinged to the other end of the hinge frame.

[0008] A cover plate is snapped onto the upper screen cylinder, a sealing ring is snapped onto the lower part of the upper screen cylinder and the upper part of the lower collection cylinder, a screening filter plate is fixedly installed on the inner side of the upper screen cylinder, a motor is fixedly installed on the upper part of the shaking plate, a cam is fixedly installed on the output end of the motor, and a connecting rod is hinged to the outer side of the cam.

[0009] A hinged plate is fixedly installed on the outside of the upper screening cylinder. A rubber pad is fixedly installed on the top of the bottom plate. A discharge port is opened on the inside of the lower collecting cylinder. A discharge filter plate is fixedly installed on the inside of the discharge port. A guide plate is fixedly installed below the shaking plate. A chute is opened on the inside of the discharge port. A blocking plate is slidably installed on the inside of the chute. A handle is fixedly installed on the outside of the blocking plate.

[0010] Preferably, multiple sets of the hinge blocks and hinge frames are provided, and the multiple sets of hinge blocks and hinge frames are mirror images of each other on the outside of the rocking plate with the vertical centerline in the front-back direction of the rocking plate as the mirror axis.

[0011] Preferably, the other end of the hydraulic rod is hinged to the outside of the rocking plate, the other end of the connecting rod is hinged to the outside of the hinge plate, the rubber pad is disposed below the rocking plate, and the guide plate is disposed directly below the discharge port.

[0012] Preferably, a locking assembly is provided on the outer side of the base plate. The locking assembly includes a locking hole. The locking hole is provided on the outer side of the blocking plate. A long plate is fixedly installed below the rocking plate. A cylinder is fixedly installed on the outer side of the long plate. One end of a threaded spring is fixedly installed on the inner side of the cylinder. The bottom of a locking block is fixedly installed on the other end of the threaded spring. One end of a connecting rod is fixedly installed on the bottom of the locking block. A pull rod is fixedly installed on the other end of the connecting rod.

[0013] Preferably, multiple sets of locking holes, cylinders, threaded springs, locking blocks, and connecting rods are provided, and these multiple sets of locking holes, cylinders, threaded springs, locking blocks, and connecting rods are linearly arranged at equal intervals on the outer side of the long plate.

[0014] Preferably, the circular cross-section of the locking block is the same size as the circular cross-section of the locking hole, and the connecting rod passes through the cylinder.

[0015] Compared with the prior art, this utility model provides a screening device for cement fineness detection, which has the following beneficial effects:

[0016] 1. This cement fineness testing screening equipment, in order to further enhance the screening effect, is equipped with a screening component. This component, together with the hinge block on the base plate, allows the shaking plate to swing flexibly. The hydraulic rod of the vertical plate hinge provides power to the shaking plate, realizing a regular shaking motion. The motor on the shaking plate drives the cam, and the cam drives the upper screening cylinder through the connecting rod, enhancing the screening effect. The screening filter plate in the upper screening cylinder performs fineness screening on the cement. The sealing ring ensures the sealing between the upper screening cylinder and the lower collection cylinder to prevent cement leakage.

[0017] 2. To ensure the accuracy and efficiency of the screening process, this cement fineness testing equipment is equipped with a locking component. This component works in conjunction with the locking hole on the blocking plate and the cylinder, threaded spring, and locking block on the long plate below the shaking plate. During the screening process, the threaded spring pushes the locking block into the locking hole, tightly fixing the blocking plate to the shaking plate. When discharge is required, pulling the lever causes the locking block to disengage from the locking hole via the connecting rod, allowing the blocking plate to slide open the discharge port. This facilitates control over the discharge timing, ensuring that cement does not flow out randomly during the screening process and guaranteeing the accuracy and efficiency of the screening work. Attached Figure Description

[0018] Figure 1 This is a top view of the overall structure of this utility model;

[0019] Figure 2 This is a top view of a partial structural cross-section of the present invention;

[0020] Figure 3 This is a cross-sectional view of the rear of a portion of the structure of this utility model;

[0021] Figure 4 This utility model Figure 3 Enlarged structural diagram of region A in the middle;

[0022] Figure 5 This is a top side view of part of the structure of this utility model;

[0023] Figure 6 This is a cross-sectional view of part of the structure of this utility model;

[0024] Figure 7 This is a schematic cross-sectional view of part of the structure of this utility model;

[0025] Figure 8 This is a cross-sectional view of part of the structure of this utility model.

[0026] In the diagram: 1. Base plate; 2. Foot pad; 3. Vertical plate; 4. Screening assembly; 41. Hinge block; 42. Shaking plate; 43. Hydraulic rod; 44. Lower collection cylinder; 45. Hinge frame; 46. Upper screening cylinder; 47. Cover plate; 48. Sealing ring; 49. Screening filter plate; 410. Motor; 411. Cam; 412. Connecting rod; 413. Hinge plate; 414. Rubber pad; 415. Discharge port; 416. Discharge filter plate; 417. Guide plate; 418. Slide chute; 419. Blocking plate; 420. Handle; 5. Locking assembly; 51. Locking hole; 52. Long plate; 53. Cylinder; 54. Threaded spring; 55. Locking block; 56. Connecting rod; 57. Pull rod. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-8 This utility model provides a technical solution: a screening device for detecting the fineness of cement, including a base plate 1, a pad 2 fixedly installed below the base plate 1, and a vertical plate 3 fixedly installed above the base plate 1.

[0029] In one embodiment of this utility model, a screening assembly 4 is provided on the outer side of the base plate 1. The screening assembly 4 includes a hinge block 41. The hinge block 41 is fixedly installed on the top of the base plate 1. A rocking plate 42 is hingedly installed on the outer side of the hinge block 41. One end of a hydraulic rod 43 is hingedly installed on the outer side of the vertical plate 3. A lower collecting cylinder 44 is fixedly installed on the top of the base plate 1. One end of a hinge frame 45 is fixedly installed on the top of the rocking plate 42. An upper screening cylinder 46 is hingedly installed on the other end of the hinge frame 45. A cover plate 47 is snapped onto the top of the upper screening cylinder 46. A sealing ring 48 is snapped between the bottom of the upper screening cylinder 46 and the top of the lower collecting cylinder 44. A screening filter plate 49 is fixedly installed on the inner side of the upper screening cylinder 46. A motor 410 is fixedly installed on the top of the rocking plate 42. A cam 411 is fixedly installed on the output end of the motor 410. One end of a connecting rod 412 is hingedly installed on the outer side of the cam 411. A hinge plate 413 is fixedly installed, a rubber pad 414 is fixedly installed above the base plate 1, a discharge port 415 is opened inside the lower collecting cylinder 44, a discharge filter plate 416 is fixedly installed inside the discharge port 415, a guide plate 417 is fixedly installed below the shaking plate 42, a chute 418 is opened inside the discharge port 415, a blocking plate 419 is slidably installed inside the chute 418, a handle 420 is fixedly installed outside the blocking plate 419, multiple sets of hinge blocks 41 and hinge frames 45 are provided, and multiple sets of hinge blocks 41 and hinge frames 45 are mirror images of the vertical center line of the shaking plate 42 in the front-back direction as the mirror axis, mirror images of the shaking plate 42 outside the shaking plate 42, the other end of the hydraulic rod 43 is hingedly installed outside the shaking plate 42, the other end of the connecting rod 412 is hingedly installed outside the hinge plate 413, the rubber pad 414 is located below the shaking plate 42, and the guide plate 417 is located directly below the discharge port 415.

[0030] In this embodiment, the hinge block 41 above the base plate 1 first provides a pivot point for the rocking plate 42, allowing it to swing flexibly. The hydraulic rod 43 serves as the power source, and its extension and retraction drive the rocking plate 42 to perform regular rocking movements. Simultaneously, after the motor 410 above the rocking plate 42 is started, the cam 411 at its output end begins to rotate. When the cam 411 rotates, it drives the upper screening cylinder 46 to vibrate via the connecting rod 412, enhancing the screening effect. When cement is poured into the upper screening cylinder 46, under the action of vibration, cement particles meeting the fineness requirements pass through the screening filter plate 49 and enter the lower... The upper screening cylinder 46 contains cement particles that fail to pass screening, while the upper screening cylinder 46 contains cement particles that fail to pass screening. The cover plate 47 above the upper screening cylinder 46 prevents cement from overflowing during screening. The sealing ring 48 between the lower part of the upper screening cylinder 46 and the upper part of the lower collection cylinder 44 ensures the seal between the two, preventing cement leakage and ensuring a clean screening environment and accurate cement collection. The lower collection cylinder 44 is used to collect the screened cement. Its inner outlet 415 and outlet filter plate 416 can further filter the cement, ensuring that the collected cement meets the fineness requirements. The guide plate 417 below the shaking plate 42 guides the screened cement to smoothly enter the collection cylinder.

[0031] In one embodiment of this utility model, a locking component 5 is provided on the outer side of the base plate 1. The locking component 5 includes a locking hole 51. The locking hole 51 is opened on the outer side of the blocking plate 419. A long plate 52 is fixedly installed below the rocking plate 42. A cylinder 53 is fixedly installed on the outer side of the long plate 52. One end of a threaded spring 54 is fixedly installed on the inner side of the cylinder 53. The bottom of a locking block 55 is fixedly installed on the other end of the threaded spring 54. One end of a connecting rod 56 is fixedly installed on the bottom of the locking block 55. A pull rod 57 is fixedly installed on the other end of the connecting rod 56. Multiple sets of locking holes 51, cylinders 53, threaded springs 54, locking blocks 55 and connecting rods 56 are provided. Multiple sets of locking holes 51, cylinders 53, threaded springs 54, locking blocks 55 and connecting rods 56 are linearly arranged at equal intervals on the outer side of the long plate 52. The circular cross-section of the locking block 55 is the same size as the circular cross-section of the locking hole 51. The connecting rod 56 passes through the cylinder 53.

[0032] In this embodiment, during the screening process, the threaded spring 54 pushes the locking block 55 into the locking hole 51, so that the blocking plate 419 and the shaking plate 42 are tightly fixed, preventing cement from flowing out of the discharge port 415 during the screening process and ensuring the accuracy of the screening work. When discharge is required, the operator pulls the pull rod 57, which is fixedly connected to the connecting rod 56. The connecting rod 56 passes through the cylinder 53 and is connected to the bottom of the locking block 55. When the pull rod 57 is pulled, the connecting rod 56 drives the locking block 55 to overcome the elastic force of the threaded spring 54 and disengage from the locking hole 51. At this time, the operator can slide the blocking plate 419 through the handle 420 on the outside of the blocking plate 419 to open the discharge port 415, which facilitates control of the discharge timing and ensures the efficiency of the screening work.

[0033] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A screening device for cement fineness detection, comprising a bottom plate (1), a foot pad (2) is fixedly installed below the bottom plate (1), a vertical plate (3) is fixedly installed above the bottom plate (1), characterized in that: The bottom plate (1) is provided with a screening assembly (4) outside, the screening assembly (4) comprises: The hinge block (41) is fixedly installed above the bottom plate (1), the hinge block (41) is hingedly installed with a shaking plate (42) outside, the vertical plate (3) is hingedly installed with a hydraulic rod (43) one end outside, the bottom plate (1) is fixedly installed with a lower collecting cylinder (44) above, the shaking plate (42) is fixedly installed with a hinge frame (45) one end above, the hinge frame (45) is hingedly installed with an upper screening cylinder (46) on the other end, The cover plate (47) is clamped and installed with a cover plate (47) above the upper screening cylinder (46), the upper screening cylinder (46) is clamped and installed with a sealing ring (48) between the lower collecting cylinder (44) above, the upper screening cylinder (46) is fixedly installed with a screening filter plate (49) inside, the shaking plate (42) is fixedly installed with a motor (410) above, the motor (410) is fixedly installed with a cam (411) output end, the cam (411) is hingedly installed with a connecting rod (412) one end outside, The hinge plate (413) is fixedly installed with a hinge plate (413) outside the upper screening cylinder (46), the bottom plate (1) is fixedly installed with a rubber pad (414) above, the lower collecting cylinder (44) is provided with a discharge port (415) inside, the discharge port (415) is fixedly installed with a discharge filter plate (416) inside, the shaking plate (42) is fixedly installed with a guide plate (417) below, the discharge port (415) is provided with a chute (418) inside, the chute (418) is slidingly installed with a blocking plate (419) inside, the blocking plate (419) is fixedly installed with a handle (420) outside.

2. A screening apparatus for the determination of cement fineness according to claim 1, characterized in that: The hinge block (41) and the hinge frame (45) are provided with multiple groups.

3. A screening apparatus for cement fineness detection according to claim 1, characterized in that: The other end of the hydraulic rod (43) is hingedly installed outside the shaking plate (42), the other end of the connecting rod (412) is hingedly installed outside the hinge plate (413), the rubber pad (414) is arranged below the shaking plate (42), and the guide plate (417) is arranged directly below the discharge port (415).

4. A screening apparatus for cement fineness detection according to claim 1, characterized in that: The bottom plate (1) is provided with a locking assembly (5) outside, the locking assembly (5) comprises a locking hole (51), the blocking plate (419) is provided with a locking hole (51) outside, the shaking plate (42) is fixedly installed with a long plate (52) below, the long plate (52) is fixedly installed with a cylinder (53) outside, the cylinder (53) is fixedly installed with a threaded spring (54) one end inside, the threaded spring (54) is fixedly installed with a locking block (55) bottom on the other end, the locking block (55) bottom is fixedly installed with a connecting rod (56) one end, and the connecting rod (56) is fixedly installed with a pull rod (57) on the other end.

5. A sieve apparatus for the determination of the fineness of cement according to claim 4, characterized in that: The locking hole (51), the cylinder (53), the threaded spring (54), the locking block (55) and the connecting rod (56) are provided with multiple groups.

6. A sieve apparatus for cement fineness testing according to claim 4, wherein: The locking block (55) circular cross section is consistent with the locking hole (51) circular cross section size, and the connecting rod (56) penetrates the cylinder (53).

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