Damping cement negative pressure screen analysis instrument

Abstract

The utility model relates to the technical field of cement detection, and discloses a damping cement negative pressure screen analysis instrument which comprises an instrument body shell, a screen analysis tank is arranged in the instrument body shell, a conical barrel is installed on the portion, located on the right side of the screen analysis tank, in the instrument body shell, and a negative pressure mechanism is installed on the portion, located on the right side of the conical barrel, in the instrument body shell. A water box is mounted on the front side of the negative pressure mechanism in the instrument body shell, and a filtering mechanism is arranged on the left side of the water box; the damping shock absorber is arranged, the damping shock absorber absorbs and dissipates vibration energy generated by the vibrator, the negative pressure fan and the circulating pump, so that the vibration amplitude is reduced, the shock absorption effect is achieved, water in the water box is continuously pumped out through the circulating mechanism in the filtering mechanism and discharged into the filtering seat, the water is filtered through the filtering plate, and the filtering effect is improved. The situation that the adsorption effect on cement powder in gas is reduced due to the fact that water in the water box is thickened after being used for a long time is avoided, and the water in the water box can be used for a long time.

Description

Technical Field

[0001] The utility model relates to the technical field of cement detection, in particular to a shock-absorbing cement negative pressure sieving instrument. Background Art

[0002] The cement negative pressure sieve analyzer creates a negative pressure environment to sieve the cement sample under the action of airflow. During the sieving process, cement particles with a particle size smaller than the sieve mesh aperture are taken away by the airflow, while particles with a larger particle size remain on the sieve mesh, thereby achieving accurate measurement of cement fineness.

[0003] When the existing cement fineness negative pressure sieve analyzer is working, the gas directly discharged into the air after filtration contains a large amount of fine dust, which can cause harm to the human body and pollute the air environment. The vibration generated by the operation of the instrument is large, which can easily cause the instrument to overturn and damage the structure.

[0004] A Chinese patent discloses a cement fineness negative pressure sieve analyzer (authorization announcement number CN209264501U). The patent technology uses a second fan and a water tank to absorb the gas generated after screening into the water tank for dust removal, preventing dust particles in the air from polluting the environment, making the use of the cement fineness negative pressure sieve analyzer more environmentally friendly. The vibration generated by the instrument during operation is reduced by a shock-absorbing base and a shock-absorbing spring to prevent the instrument from tipping over due to large vibrations.

[0005] However, it has certain disadvantages: as more and more dust is adsorbed in the water, the viscosity of the water will also increase, which will make it difficult for subsequent dust to be effectively absorbed by the water. Dust particles in the viscous water are more likely to agglomerate, reducing the contact area between water and dust, thereby reducing the dust removal efficiency. Utility Model Content

[0006] The utility model aims to provide a shock-absorbing cement negative pressure screening instrument to solve the problems raised in the above-mentioned background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A shock-absorbing cement negative pressure screening instrument comprises an instrument body shell, a support plate is installed below the instrument body shell, a damping shock absorber is installed on the upper surface of the support plate, a screening tank is arranged inside the instrument body shell, and a conical cylinder is installed inside the instrument body shell on the right side of the screening tank, a collecting tank is installed at the lower end of the conical cylinder, and a second sieve plate is installed inside the conical cylinder, a negative pressure mechanism is installed inside the instrument body shell on the right side of the conical cylinder, and a water box is installed inside the instrument body shell on the front side of the negative pressure mechanism, a filtering mechanism is arranged on the left side of the water box, the filtering mechanism comprises a circulation mechanism and a mounting frame, a mounting plate is installed on the upper surface of the mounting frame, a filter seat is installed through the inside of the mounting plate, and a filter plate is installed inside the filter seat.

[0009] As a further solution of the utility model: the screening tank includes a tank body, a connecting pipe is installed at the lower end of the tank body, and a tank cover is installed at the upper end of the tank body, a first sieve plate is installed inside the tank body, and a vibrator is installed on the upper surface of the first sieve plate.

[0010] As a further solution of the utility model: the negative pressure mechanism includes a negative pressure fan, the left side of the negative pressure fan is connected to a first air duct, and the front side of the negative pressure fan is connected to a second air duct.

[0011] As a further solution of the utility model: the circulation mechanism includes a circulation pump, a first water pipe is installed at one end of the circulation pump, and a second water pipe is installed at the other end of the circulation pump.

[0012] As a further solution of the utility model: the upper end of the damping shock absorber is installed on the lower surface of the instrument body shell, the lower ends of the collection tank and the water box are installed on the inner lower surface of the instrument body shell, the mounting frame is installed on the left side outside the water box, and the filter seat movably passes through the mounting frame.

[0013] As a further solution of the utility model: one end of the connecting pipe penetrates and is connected to the left side surface of the conical cylinder, and the connection between the connecting pipe and the conical cylinder is located below the second sieve plate.

[0014] As a further solution of the utility model: the negative pressure fan is installed on the inner lower surface of the instrument body shell, one end of the first air duct penetrates and is connected to the upper surface of the conical cylinder, and one end of the second air duct is located inside the water box.

[0015] As a further solution of the utility model: the circulation pump is installed on the inner lower surface of the instrument body shell, one end of the first water pipe penetrates and is connected to the left side surface of the water box, and one end of the second water pipe is directly opposite to the filter seat.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The utility model is provided with a damping shock absorber, which is different from an ordinary spring. The damping shock absorber absorbs and dissipates the vibration energy generated by the vibrator, the negative pressure fan and the circulating pump, thereby reducing the amplitude of the vibration, achieving the effect of shock absorption and reducing the noise.

[0018] 2. The utility model is provided with a filtering mechanism, in which a circulation mechanism continuously draws out water from the water box and discharges it into the filter seat, and filters it through the filter plate in the filter seat to filter out extremely fine dust impurities, thereby preventing the water in the water box from becoming thick due to long-term use, which leads to a reduced adsorption effect on cement powder in the gas. The water in the water box can be used for a long time, saving water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a shock-absorbing cement negative pressure sieve analyzer;

[0020] Figure 2 It is a front view of a damping shock absorber in a shock-absorbing cement negative pressure sieve analyzer;

[0021] Figure 3 It is a partial schematic diagram of a shock-absorbing cement negative pressure sieving instrument;

[0022] Figure 4 An exploded view of a sieving tank in a shock-absorbing cement negative pressure sieving instrument;

[0023] Figure 5 It is a partial cross-sectional view of a conical cylinder in a shock-absorbing cement negative pressure sieving instrument;

[0024] Figure 6 The figure is a schematic diagram of the structure of the filtering mechanism in a shock-absorbing cement negative pressure sieving instrument.

[0025] In the figure: 1. instrument body shell; 2. support plate; 3. damping shock absorber; 4. screening tank; 5. tank body; 6. connecting pipe; 7. tank cover; 8. first sieve plate; 9. vibrator; 10. conical cylinder; 11. collecting tank; 12. second sieve plate; 13. negative pressure mechanism; 14. negative pressure fan; 15. first air duct; 16. second air duct; 17. water box; 18. filtering mechanism; 19. circulation mechanism; 20. circulating pump; 21. first water pipe; 22. second water pipe; 23. mounting frame; 24. mounting plate; 25. filter seat; 26. filter plate. DETAILED DESCRIPTION

[0026] See also Figures 1 to 5In the embodiment of the utility model, a shock-absorbing cement negative pressure sieving instrument comprises an instrument body shell 1, a support plate 2 is installed below the instrument body shell 1, a damping shock absorber 3 is installed on the upper surface of the support plate 2, and the upper end of the damping shock absorber 3 is installed on the lower surface of the instrument body shell 1, a sieving tank 4 is arranged inside the instrument body shell 1, and the sieving tank 4 comprises a tank body 5, a connecting pipe 6 is installed at the lower end of the tank body 5, and a tank cover 7 is installed at the upper end of the tank body 5, a first sieve plate 8 is installed inside the tank body 5, and a vibrator 9 is installed on the upper surface of the first sieve plate 8, a conical cylinder 10 is installed on the right side of the sieving tank 4 inside the instrument body shell 1, a collecting tank 11 is installed at the lower end of the conical cylinder 10, and a second sieve plate 12 is installed inside the conical cylinder 10, and one end of the connecting pipe 6 penetrates The connecting pipe 6 is connected to the left side surface of the conical cylinder 10, and the connection between the connecting pipe 6 and the conical cylinder 10 is located below the second sieve plate 12. A negative pressure mechanism 13 is installed on the right side of the conical cylinder 10 inside the instrument body shell 1. The negative pressure mechanism 13 includes a negative pressure fan 14. The negative pressure fan 14 is installed on the lower surface of the inner part of the instrument body shell 1. A first air duct 15 is connected to the left side of the negative pressure fan 14. One end of the first air duct 15 passes through and is connected to the upper surface of the conical cylinder 10. A second air duct 16 is connected to the front side of the negative pressure fan 14. A water box 17 is installed on the front side of the negative pressure mechanism 13 inside the instrument body shell 1. The lower ends of the collecting tank 11 and the water box 17 are both installed on the lower surface of the inner part of the instrument body shell 1, and one end of the second air duct 16 is located inside the water box 17.

[0027] The tank cover 7 can be opened and connected to the tank body 5 by snap-fit ​​or threaded connection. The cement powder is placed on the surface of the first sieve plate 8. The negative pressure fan draws air outward, so that negative pressure is generated inside the tank body 5 and the conical cylinder 10. The fine-grained cement powder passes through the first sieve plate 8 and is sucked into the conical cylinder 10, and falls into the collection tank 11 by its own gravity. It cannot pass through the second sieve plate 12. The extremely fine-grained cement powder passes through the second sieve plate 12 and falls into the water box 17 to be absorbed by water.

[0028] The front side of the collecting tank 11 is provided with an openable hinged door for cleaning the cement powder inside thereof;

[0029] The vibrator 9 drives the first screen plate 8 to vibrate, so that cement powder passes through quickly;

[0030] The damping shock absorber 3 is different from an ordinary spring, and it can well absorb and eliminate the vibration transmitted to the instrument body housing 1 by the vibrator 9 and the negative pressure fan 14.

[0031] exist Figure 1 , Figure 3 and Figure 6Middle: A filter mechanism 18 is provided on the left side of the water box 17, and the filter mechanism 18 includes a circulation mechanism 19 and a mounting frame 23. The circulation mechanism 19 includes a circulation pump 20. A first water pipe 21 is installed at one end of the circulation pump 20, and a second water pipe 22 is installed at the other end of the circulation pump 20. The mounting frame 23 is installed on the left side of the water box 17. A mounting plate 24 is installed on the upper surface of the mounting frame 23. A filter seat 25 is installed inside the mounting plate 24. The filter seat 25 movably penetrates the mounting frame 23, and a filter plate 26 is installed inside the filter seat 25;

[0032] The filter seat 25 is hollow, and the water in the water box 17 passes through the filter seat 25 from top to bottom;

[0033] The filter plate 26 includes a HEPA filter, a nanofiber filter layer and an activated carbon filter layer; the filter plate 26 is used to filter very fine dust, thereby preventing the water in the water box 17 from becoming thickened due to long-term use, thereby reducing the adsorption effect on very fine cement powder particles.

[0034] The working principle of the utility model is as follows: when in use, cement powder is placed on the surface of the first sieve plate 8 and the tank cover 7 is closed. Under the action of the negative pressure fan 14, the cement powder with fine particles passes through the first sieve plate 8 and enters the conical cylinder 10, and then falls into the collection tank 11 by its own gravity. The cement powder with extremely fine particles passes through the second sieve plate 12 and is sucked into the water box 17 and adsorbed by the water; the circulating pump 20 draws the water in the water box into the filter seat 25 through the first water pipe 21 and the second water pipe 22, and the water falls into the water box 17 after being filtered by the filter plate 26.

[0035] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A shock-absorbing cement negative pressure sieving instrument, comprising an instrument body shell (1), a support plate (2) is installed below the instrument body shell (1), a damping shock absorber (3) is installed on the upper surface of the support plate (2), a sieving tank (4) is arranged inside the instrument body shell (1), and a conical cylinder (10) is installed inside the instrument body shell (1) on the right side of the sieving tank (4), a collecting tank (11) is installed at the lower end of the conical cylinder (10), and a second sieve plate (12) is installed inside the conical cylinder (10), a negative pressure mechanism (13) is installed inside the instrument body shell (1) on the right side of the conical cylinder (10), and a water box (17) is installed inside the instrument body shell (1) on the front side of the negative pressure mechanism (13), characterized in that: A filter mechanism (18) is arranged on the left side of the water box (17), the filter mechanism (18) comprising a circulation mechanism (19) and a mounting frame (23), a mounting plate (24) being mounted on the upper surface of the mounting frame (23), a filter seat (25) being installed through the interior of the mounting plate (24), and a filter plate (26) being installed inside the filter seat (25).

2. A shock-absorbing cement negative pressure sieving instrument according to claim 1, characterized in that: The sieve tank (4) comprises a tank body (5), a connecting pipe (6) is installed at the lower end of the tank body (5), and a tank cover (7) is installed at the upper end of the tank body (5), a first sieve plate (8) is installed inside the tank body (5), and a vibrator (9) is installed on the upper surface of the first sieve plate (8).

3. A shock-absorbing cement negative pressure sieving instrument according to claim 1, characterized in that: The negative pressure mechanism (13) comprises a negative pressure fan (14), the left side of the negative pressure fan (14) is connected to a first air duct (15), and the front side of the negative pressure fan (14) is connected to a second air duct (16).

4. The shock-absorbing cement negative pressure sieving instrument according to claim 1, characterized in that: The circulation mechanism (19) comprises a circulation pump (20), a first water pipe (21) being installed at one end of the circulation pump (20), and a second water pipe (22) being installed at the other end of the circulation pump (20).

5. The shock-absorbing cement negative pressure sieving instrument according to claim 1, characterized in that: The upper end of the damping shock absorber (3) is mounted on the lower surface of the instrument housing (1), the lower ends of the collection tank (11) and the water box (17) are both mounted on the inner lower surface of the instrument housing (1), the mounting frame (23) is mounted on the left side of the water box (17), and the filter seat (25) movably penetrates the mounting frame (23).

6. The shock-absorbing cement negative pressure sieving instrument according to claim 2, characterized in that: One end of the connecting pipe (6) penetrates and is connected to the left side surface of the conical cylinder (10), and the connection point between the connecting pipe (6) and the conical cylinder (10) is located below the second sieve plate (12).

7. A shock-absorbing cement negative pressure sieving instrument according to claim 3, characterized in that: The negative pressure fan (14) is mounted on the lower surface of the inner body shell (1), one end of the first air duct (15) penetrates and is connected to the upper surface of the conical cylinder (10), and one end of the second air duct (16) is located inside the water box (17).

8. The shock-absorbing cement negative pressure sieving instrument according to claim 4, characterized in that: The circulation pump (20) is mounted on the inner lower surface of the instrument housing (1); one end of the first water pipe (21) penetrates and is connected to the left side surface of the water box (17); and one end of the second water pipe (22) is directly opposite to the filter seat (25).

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