Cement fineness negative pressure screen analysis instrument

Abstract

The utility model provides a cement fineness negative pressure screen analysis instrument, which belongs to the technical field of cement fineness negative pressure screen analysis instruments, and comprises an outer box, a bidirectional rotating seat group arranged on the bottom surface of the left side in a cavity of the outer box, a screen analysis material box group magnetically connected to the top surface of the bidirectional rotating seat group, and a lifting sealing box cover group vertically arranged above the screen analysis material box group, through the structural combination design of a negative pressure screen analysis device in an outer box cavity, the negative pressure screen analysis device is composed of a bidirectional rotating seat group, a screen analysis material box group, a lifting sealing box cover group, a telescopic hose, a connecting pipe seat, a negative pressure pipe box, a negative pressure negative pumping machine and a screen analysis collecting box, and the cement fineness negative pressure screen analysis instrument which can seal a material box and rapidly turn over cement in cooperation with bidirectional centrifugal force is formed. According to the equipment, during negative pressure screen analysis of the cement fineness, material leakage to the outer side of the outer box cannot occur, and rapid material turning can be matched during negative pressure screen analysis, so that cement with the consistent fineness is rapidly and completely turned out and sucked by negative pressure, the working efficiency of negative pressure screen analysis of the equipment is improved, and the practicability is high.

Description

Technical Field

[0001] The utility model relates to a negative pressure sieve analyzer for cement fineness, belonging to the technical field of negative pressure sieve analyzers for cement fineness. Background Art

[0002] The negative pressure sieve analyzer for cement fineness is a special instrument for sieve analysis inspection according to national standards. It has the characteristics of simple structure, convenient operation, and energy consumption reduction. It is an essential instrument for cement plants, construction companies, scientific research institutes, and universities with cement majors. The negative pressure sieve analyzer for cement fineness uses air flow as the power medium for screening.

[0003] However, there is generally no sealing design between the material box and the negative pressure sieve end of the existing negative pressure sieve analyzer. During negative pressure sieving, larger particles can sometimes be sucked up to a certain position, but when the negative pressure suction is insufficient, they will fall outside the material box. In addition, the material box generally uses a vibration method to cooperate with the negative pressure sieving. Due to the thickness problem of the cement in the material box groove, the time required for the lower-layer cement to vibrate to the upper layer is relatively long, affecting the negative pressure sieving efficiency. In view of the above problems, the utility model proposes a negative pressure sieve analyzer for cement fineness. Content of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a negative pressure sieve analyzer for cement fineness to solve the existing problems.

[0005] To achieve the above purpose, the utility model is realized through the following technical solutions: A negative pressure sieve analyzer for cement fineness includes an outer box, a bidirectional rotating seat group arranged on the left bottom surface of the inner cavity of the outer box, a sieve analysis material box group magnetically connected to the top surface of the bidirectional rotating seat group, a lifting and sealing box cover group vertically arranged above the sieve analysis material box group, a telescopic hose connected to the upper end of the lifting and sealing box cover group, a connecting pipe seat connected to the other end of the telescopic hose, a negative pressure pipe box connected to the other end of the connecting pipe seat. A negative pressure pumping machine is arranged in the other inner cavity of the negative pressure pipe box. The other end of the negative pressure pipe box is connected to a sieve analysis collection box, and an outer box door is hinged on the front side of the outer box.

[0006] Further improvement is that the bidirectional rotating seat group includes a support, a bidirectional rotator arranged on the support, a sieve analysis material box magnetic seat arranged on the top surface of the bidirectional rotator, a sleeve groove opened on the top surface of the sieve analysis material box magnetic seat, and a magnet embedded in the sleeve groove.

[0007] Further improvement is that the sieve analysis material box group includes a material box, a material box sleeve seat arranged on the bottom surface of the material box, a magnetic suction foot arranged on the bottom surface of the material box sleeve seat. A sieve mesh is placed on the top surface of the material box. The material box and the material box sleeve seat are of an integrated structure. The material box is made of plastic, and the magnetic suction foot is made of metal.

[0008] Further improved, the material box includes a material box body, a screen sleeve edge arranged on the periphery of the top surface of the material box body, and a plurality of convex intake pipes obliquely arranged through the upper side of the cavity of the material box body. An anti-leakage net is embedded at the upper end of each convex intake pipe, and the material box body is conical in shape.

[0009] Further improved, the lifting and sealing box cover group includes a box cover seat, a box cover connected to the bottom surface of the box cover seat, and a driven turntable arranged on the lower cover edge of the box cover. A sealing gasket is arranged on the peripheral edge of the bottom surface of the driven turntable, and a first lifter and a second lifter are vertically arranged on the left and right sides of the top end of the box cover seat.

[0010] Further improved, the sleeve groove is adapted to the magnetic suction feet.

[0011] Further improved, the magnetic suction feet are magnetically connected to the magnets.

[0012] Further improved, the bidirectional rotating seat group, the negative pressure pumping machine, and the sieving and collecting box are all prior arts, and the structures will not be described in detail one by one here.

[0013] The beneficial effects of the utility model are:

[0014] The utility model provides a negative pressure sieving instrument for cement fineness. Through the structural combination design of the negative pressure sieving device composed of the bidirectional rotating seat group, the sieving material box group, the lifting and sealing box cover group, the telescopic hose, the connecting pipe seat, the negative pressure pipe box, the negative pressure pumping machine, and the sieving and collecting box in the outer box cavity, a negative pressure sieving instrument for cement fineness that can seal the material box and cooperate with the bidirectional centrifugal force to quickly turn the cement is formed. When the equipment is used for negative pressure sieving of cement fineness, there will be no material leakage to the outside of the outer box, and it can cooperate with quick turning of the material during negative pressure sieving, so that the qualified fineness cement can be quickly turned out completely and sucked away by negative pressure, thereby improving the working efficiency of the equipment for negative pressure sieving, and it has strong practicability. Description of the Drawings

[0015] Figure 1 It is a schematic structural diagram of a negative pressure sieving instrument for cement fineness of the utility model;

[0016] Figure 2 It is a schematic structural diagram of the bidirectional rotating seat group of the utility model;

[0017] Figure 3 It is a schematic structural diagram of the sieving material box group of the utility model;

[0018] Figure 4 It is a schematic structural diagram of the lifting and sealing box cover group of the utility model. Detailed Embodiment

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] See also Figures 1-4 The utility model is a schematic diagram of a cement fineness negative pressure sieving instrument. The technical scheme includes an outer box 1, a two-way rotating seat group 2 arranged on the bottom surface of the left side of the cavity of the outer box 1, a sieving material box group 3 magnetically connected to the top surface of the two-way rotating seat group 2, a lifting and sealing box cover group 4 vertically arranged above the sieving material box group 3, a telescopic hose 5 connected to the upper end of the lifting and sealing box cover group 4, a connecting pipe seat 6 connected to the other end of the telescopic hose 5, and a negative pressure pipe box 7 connected to the other end of the connecting pipe seat 6. The negative pressure A negative pressure pump 8 is arranged in the cavity on the other side of the tube box 7, and a screening collection box 9 is connected to the other end of the negative pressure tube box 7. An outer box door 10 is hinged on the front side of the outer box 1. The bidirectional rotating seat group 2 includes a support 21, a bidirectional rotator 22 arranged on the support 21, a screening material box magnetic seat 23 arranged on the top surface of the bidirectional rotator 22, a sleeve groove 24 opened on the top surface of the screening material box magnetic seat 23, and a magnet 25 embedded in the sleeve groove 24. The screening material box group 3 includes a material box 31, A material box seat 32 is arranged on the bottom surface of the material box 31, and a magnetic foot 33 is arranged on the bottom surface of the material box seat 32. A screening net 34 is placed on the top surface of the material box 31. The material box 31 and the material box seat 32 are an integrated structure. The material box 31 is made of plastic, and the magnetic foot 33 is made of metal. The material box 31 includes a material box body 311, a screen cover edge 312 arranged on the top surface of the material box body 311, and a plurality of screens 312 arranged obliquely on the upper side of the cavity of the material box body 311. Convex air inlet pipe 313, each of which is embedded with a leak-proof net 314 at the upper end, the material box body 311 is conical, the lifting and sealing box cover group 4 includes a box cover seat 41, a box cover 42 connected to the bottom surface of the box cover seat 41, and a driven turntable 43 arranged on the lower cover edge of the box cover 42, a sealing gasket 44 is arranged on the periphery of the bottom surface of the driven turntable 43, and a first lifter 45 and a second lifter 46 are vertically arranged on the left and right sides of the top of the box cover seat 41.

[0021] Working principle:

[0022] First, take out the screening material box group 3 to the outside for unloading and reloading, and then place it on the screening material box magnetic base 23, and put it in the sleeve groove 24 through the magnetic foot 33, and the bottom surface of the magnetic foot 33 is magnetically connected to the magnet 25 to magnetically fix the material box 31, and then place the screening net 34 on the screen sleeve edge 312, and then the first lifter 45 and the second lifter 46 synchronously extend downward through the box cover seat 41 to make the box cover 42, the driven turntable 43, and the sealing gasket 44 descend to press the screening net 34 and seal the cover on the top surface of the material box 31, and close the outer box door 10 to complete the advance preparation of cement negative pressure screening.

[0023] When the negative pressure extractor 8 is started and performs negative pressure suction sieving on the material box 31 through the negative pressure pipe box 7, the connecting pipe seat 6, the telescopic hose 5, and the lifting seal box cover group 4, the bidirectional rotating seat group 2 will synchronously drive the material box 31 to rotate back and forth to cooperate with the centrifugal force to quickly turn the cement. Due to the action of the driven turntable 43, the box cover 42 will not rotate accordingly. Then, the cement with the required fineness will pass upward through the sieve mesh 34 and flow into the sieve collection box 9 at the lower end of the negative pressure extractor 8. During this process, each convex intake pipe 313 will intake air into the material box 31, and each anti-leakage net 314 can prevent the cement from leaking out.

[0024] The above shows and describes the basic principles, main features and advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed claims.

[0025] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A cement fineness negative pressure sieve analyzer, characterized in that: The invention comprises an outer box (1), a bidirectional rotating seat group (2) arranged on the bottom surface of the left side of the cavity of the outer box (1), a screening material box group (3) magnetically connected to the top surface of the bidirectional rotating seat group (2), a lifting and sealing box cover group (4) vertically arranged above the screening material box group (3), a telescopic hose (5) connected to the upper end of the lifting and sealing box cover group (4), a connecting pipe seat (6) connected to the other end of the telescopic hose (5), and a negative pressure pipe box (7) connected to the other end of the connecting pipe seat (6), a negative pressure pump (8) being arranged in the cavity on the other side of the negative pressure pipe box (7), a screening collection box (9) being connected to the other end of the negative pressure pipe box (7), and an outer box door (10) being hingedly connected to the front side of the outer box (1).

2. A cement fineness negative pressure sieve analyzer according to claim 1, characterized in that: The bidirectional rotating seat assembly (2) comprises a support (21), a bidirectional rotator (22) arranged on the support (21), a screening material box magnetic seat (23) arranged on the top surface of the bidirectional rotator (22), a sleeve groove (24) opened on the top surface of the screening material box magnetic seat (23), and a magnet (25) embedded in the sleeve groove (24).

3. A cement fineness negative pressure sieve analyzer according to claim 1, characterized in that: The screening material box set (3) comprises a material box (31), a material box seat (32) arranged on the bottom surface of the material box (31), and a magnetic foot (33) arranged on the bottom surface of the material box seat (32); a screening net (34) is placed on the top surface of the material box (31); the material box (31) and the material box seat (32) are an integrated structure; the material box (31) is made of plastic material, and the magnetic foot (33) is made of metal material.

4. A cement fineness negative pressure sieve analyzer according to claim 3, characterized in that: The material box (31) comprises a material box body (311), a screen sleeve edge (312) arranged around the top surface of the material box body (311), and a plurality of convex air inlet pipes (313) penetrating and obliquely arranged on the upper side of the cavity of the material box body (311), each of the convex air inlet pipes (313) being embedded with a leak-proof net (314) at the upper end, and the material box body (311) is in a conical shape.

5. A cement fineness negative pressure sieve analyzer according to claim 1, characterized in that: The lifting sealed box cover assembly (4) comprises a box cover seat (41), a box cover (42) connected to the bottom surface of the box cover seat (41), and a driven rotating disk (43) arranged at the lower cover edge of the box cover (42); a sealing gasket (44) is arranged on the periphery of the bottom surface of the driven rotating disk (43); and a first lifter (45) and a second lifter (46) are vertically arranged on the left and right sides of the top end of the box cover seat (41).

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