CN215065976U

CN215065976U - Negative pressure sieve calibrating device

Info

Publication number: CN215065976U
Application number: CN202121374183.5U
Authority: CN
Inventors: 石银; 何进平
Original assignee: Boc Testing Jiangsu Testing Research Co ltd
Current assignee: Boc Testing Jiangsu Testing Research Co ltd
Priority date: 2021-06-21
Filing date: 2021-06-21
Publication date: 2021-12-07
Anticipated expiration: 2031-06-21

Abstract

The utility model discloses a negative pressure sieve calibrating device, which comprises a mounting seat and an adjusting mechanism, wherein a through cavity is arranged inside the mounting seat, a negative pressure screen is arranged inside the through cavity on the mounting seat, a conical connecting cover is arranged on the upper end surface of the mounting seat, a connecting pipe is arranged at the upper end of the conical connecting cover, an installation box is arranged at the upper end of the connecting pipe, a conduit is arranged at the lower end of one side inside the installation box, one end of the conduit is arranged on the connecting pipe, and an adjusting valve is arranged on the conduit; the utility model discloses simple structure, reasonable in design, calibration detection convenient operation can detect the calibration to the negative pressure of negative pressure sieve screen cloth mounted position fast and reliably, prevents to use for a long time that negative pressure sieve inner structure blocks up and leads to the negative pressure value of reality to be less than standard negative pressure value, can detect the negative pressure that the dust catcher provided according to actual operation's needs and the pipe connection of dust catcher simultaneously, makes things convenient for the calibration to detect time measuring staff and judges the fault point.

Description

Negative pressure sieve calibrating device

Technical Field

The utility model relates to a negative pressure sieve calibration equipment technical field specifically is negative pressure sieve calibrating device.

Background

The negative pressure screen analysis instrument is a special instrument for carrying out screen analysis inspection according to national standard T0501-94 'cement fineness inspection method 80u m screen analysis method', and has the characteristics of simple structure, convenient operation, energy consumption reduction and the like, and is a necessary instrument for cement factories, construction companies, scientific research institutions owning cement professions and colleges, when the negative pressure screen analysis instrument uses air flow as a power medium for screening, the whole system keeps a negative pressure state, fine particles to be detected in a screen mesh are in a fluid state under the action of air flow sprayed by a rotating air nozzle and move along with the air flow, fine particles with the particle size smaller than the aperture of the screen mesh are driven by the air flow to be pumped away through the screen mesh, coarse particles with the particle size larger than the aperture of the screen mesh are left in the screen mesh so as to achieve the purpose of screening, if a small cyclone dust collection cylinder is combined in the screening system, each screen passing through the screen mesh and the screen are generally calibrated, if the result error is large, the sieve is calibrated once a year, and the negative pressure sieve is calibrated once 100 times according to the standard.

The defects of the prior art are as follows:

when the negative pressure of the negative pressure sieve is calibrated, a specific calibration detection device is not provided, the negative pressure affecting the negative pressure sieve may be internal structure blockage, or the actual power of the dust collector does not accord with the standard power after long-term operation, so that the actually generated negative pressure is smaller than the displayed negative pressure, and the fault reason is relatively troublesome to detect.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a negative pressure sieve calibrating device to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: negative pressure sieve calibrating device, including mount pad and adjustment mechanism, the inside of mount pad is provided with runs through the chamber, the mount pad is provided with the negative pressure screen cloth in the inside that runs through the chamber, be provided with the toper connecting cover on the up end of mount pad, the upper end of toper connecting cover is provided with the connecting pipe, the upper end of connecting pipe is provided with the install bin, the lower extreme of the inside one side of install bin is provided with the pipe, the one end setting of pipe is on the connecting pipe, be provided with the governing valve on the pipe, the upper end of the inside opposite side of install bin is provided with the negative pressure detector, the negative pressure detector sets up on the connecting pipe, adjustment mechanism sets up the inside at the mount pad.

Preferably, adjustment mechanism comprises adjustable ring, rubidium magnet piece, rubidium magnet ring, control tube and connector tube head, there is the adjustable ring through seting up external screw thread connection on the lateral surface of connecting pipe, be provided with a plurality of rubidium magnet piece on the adjustable ring, there is rubidium magnet ring through seting up internal screw thread connection on the inside wall of connecting pipe, be provided with the control tube on the inside wall of rubidium magnet ring, the lower extreme of control tube is provided with the connector tube head.

Preferably, a sealing gasket is arranged on the outer side surface of the lower end surface of the mounting seat.

Preferably, the inside of mount pad is provided with the dead lever in the upper end of negative pressure screen cloth, the other end of dead lever is provided with solid fixed ring, be provided with a plurality of air guide hole on the governing pipe.

Preferably, sealing rings are arranged on the outer surface of the upper end of the conical connecting cover, the upper end surface of the conical connecting cover and the inner side of the negative pressure screen.

Preferably, the two sides of the outer side face of the upper end of the conical connecting cover are provided with supporting rods, and the upper ends of the supporting rods are arranged on the lower end face of the mounting box.

Preferably, a case cover is movably arranged on the upper end face of the installation case, a limiting ring matched with the adjusting pipe is arranged on the lower end face of the case cover, and a transparent window matched with the negative pressure detector is arranged on the installation case.

Preferably, the end of the conduit remote from the connecting pipe is arranged outside the installation box.

Compared with the prior art, the beneficial effects of the utility model are that:

1. this negative pressure sieve calibrating device through being provided with mount pad, toper connecting cover and connecting pipe, still is provided with governing valve and negative pressure detector simultaneously, and calibration detection convenient operation can detect the calibration to the negative pressure of negative pressure sieve screen cloth mounted position fast and reliably, prevents that long-term back negative pressure sieve inner structure from blockking up the negative pressure value that leads to the reality and being less than the negative pressure value of standard.

2. This negative pressure sieve calibrating device through being provided with adjustment mechanism, and adjustment mechanism comprises adjustable ring, rubidium magnet piece, rubidium magnet ring, control tube and connector tube head, through adjustment mechanism's effect, can detect the negative pressure that the dust catcher provided according to actual operation's needs and the pipe connection of dust catcher, and the staff judges the fault point when convenient calibration was examined.

Drawings

FIG. 1 is an overall perspective view of the present invention;

FIG. 2 is a partial cross-sectional view of the mounting seat, conical connecting cover and connecting tube of the present invention;

FIG. 3 is a schematic view of the internal structure of the installation box of the present invention;

fig. 4 is a perspective view of the adjusting ring of the present invention.

In the figure: 1. a mounting seat; 101. a through cavity; 102. a gasket; 2. an adjustment mechanism; 21. an adjusting ring; 22. a rubidium magnet block; 23. a rubidium magnet ring; 24. an adjusting tube; 241. an air vent; 25. connecting the pipe heads; 3. a negative pressure screen; 4. a conical connection housing; 5. a connecting pipe; 6. installing a box; 61. a transparent window; 7. a conduit; 8. adjusting a valve; 9. a negative pressure detector; 10. fixing the rod; 11. a fixing ring; 12. a seal ring; 13. a support bar; 14. a box cover; 15. a limit ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1-4, the present invention provides a calibration device for a negative pressure screen, comprising: the negative pressure screen calibration device comprises a mounting seat 1 and an adjusting mechanism 2, a through cavity 101 is formed in the mounting seat 1, a negative pressure screen 3 is installed in the through cavity 101 of the mounting seat 1, a conical connecting cover 4 is welded and communicated on the upper end face of the mounting seat 1, a connecting pipe 5 is welded and communicated on the upper end of the conical connecting cover 4, a mounting box 6 is welded on the upper end of the connecting pipe 5, a guide pipe 7 is installed at the lower end of one side in the mounting box 6, one end of the guide pipe 7 is connected to the connecting pipe 5, an adjusting valve 8 is installed on the guide pipe 7, a negative pressure detector 9 is installed at the upper end of the other side in the mounting box 6, the negative pressure detector 9 is installed on the connecting pipe 5, and the adjusting mechanism 2 is arranged in the mounting seat 1;

through the scheme, the calibration detection operation is convenient, the negative pressure of the mounting position of the negative pressure screen can be rapidly and reliably detected and calibrated, and the situation that the actual negative pressure value is smaller than the standard negative pressure value due to the blockage of the internal structure of the negative pressure screen after long-term use is prevented.

In this embodiment, preferably, the adjusting mechanism 2 is composed of an adjusting ring 21, rubidium magnet blocks 22, rubidium magnet rings 23, an adjusting pipe 24 and a connector head 25, the adjusting ring 21 is connected to the outer side surface of the connecting pipe 5 through an external thread, a plurality of rubidium magnet blocks 22 are embedded in an opening formed in the adjusting ring 21, the rubidium magnet rings 23 are connected to the inner side wall of the connecting pipe 5 through an internal thread, the adjusting pipe 24 is installed on the inner side wall of the rubidium magnet rings 23, and the connector head 25 is installed at the lower end of the adjusting pipe 24;

through the scheme, through being provided with adjustment mechanism 2, adjustment mechanism 2 comprises adjustable ring 21, rubidium magnet piece 22, rubidium magnet ring 23, control tube 24 and connector 25, through adjustment mechanism 2's effect, can detect the negative pressure that the dust catcher provided according to actual operation's needs and the pipe connection of dust catcher, and the staff judges the fault point when convenient calibration detects.

In this embodiment, preferably, the outer side surface of the lower end surface of the mounting seat 1 is connected with a sealing gasket 102 in a hot melting manner;

through the scheme, the sealing gasket 102 is arranged, so that the sealing performance of the mounting seat 1 placed on the negative pressure screen can be effectively improved.

In this embodiment, preferably, a fixing rod 10 is welded at the upper end of the negative pressure screen 3 inside the mounting seat 1, a fixing ring 11 is welded at the other end of the fixing rod 10, and a plurality of air guide holes 241 are formed in the adjusting pipe 24;

through the above scheme, through setting up dead lever 10, the other end welding of dead lever 10 has solid fixed ring 11, has seted up a plurality of air guide hole 241 on the control tube 24, the detection that atmospheric pressure led when convenient calibration detected negative pressure sieve screen cloth mounted position.

In this embodiment, preferably, the sealing rings 12 are welded on the outer surface of the upper end of the conical connecting cover 4 and the inner upper end surface of the conical connecting cover and the inner side of the negative pressure screen 3;

through the scheme, the sealing ring 12 is arranged, and the overall sealing effect is further improved.

In this embodiment, preferably, the support rods 13 are welded to both sides of the outer side surface of the upper end of the conical connecting cover 4, and the upper ends of the support rods 13 are welded to the lower end surface of the installation box 6;

through above-mentioned scheme, through being provided with bracing piece 13, the upper end welding of bracing piece 13 can increase the stability of installing box 6 on the lower terminal surface of installing box 6.

In this embodiment, preferably, the case cover 14 is mounted on the upper end surface of the mounting case 6 through a hinge, the limiting ring 15 matched with the adjusting pipe 24 is welded on the lower end surface of the case cover 14, and the mounting case 6 is provided with a transparent window 61 matched with the negative pressure detector 9;

through the above scheme, through being provided with case lid 14, the welding has on the lower terminal surface of case lid 14 with 24 assorted spacing rings 15 of regulating tube, conveniently adjusts governing valve 8, can increase the stability of connecting pipe 5 simultaneously to be provided with transparent window 61, conveniently read negative pressure detector 9's data.

In this embodiment, it is preferable that the end of the conduit 7 remote from the connecting pipe 5 extends outside the installation case 6;

through the scheme, the exhaust and air intake of the guide pipe 7 are facilitated.

The working principle of the utility model is as follows:

when the negative pressure screen calibrating device is used and used for detecting the negative pressure at the screen mounting position of the negative pressure screen, the mounting seat is firstly placed 1 on the screen mounting position of the negative pressure screen, then the negative pressure screen is started and is detected through the through cavity 101, the conical connecting cover 4, the connecting pipe 5 and the negative pressure detector 9, meanwhile, the calibrating detection basic value of the negative pressure detector 9 can be adjusted through the adjusting valve 8 when in actual operation, when the negative pressure value of the dust collector needs to be detected, only the adjusting ring 21 needs to be screwed to move downwards, the adjusting pipe 24 is driven to move downwards through the rubidium magnet block 22 and the rubidium magnet ring 23, the connecting pipe head 25 extends out of the inside of the mounting seat 1, the air guide hole 241 is sealed through the fixing ring 11, the pipeline of the dust collector is connected with the connecting pipe head 25, the negative pressure of the dust collector is detected, the calibrating detection operation of the device is convenient, and the negative pressure at the screen mounting position of the negative pressure screen can be detected and calibrated rapidly and reliably, prevent to use back negative pressure sieve inner structure for a long time and block up the negative pressure value that leads to the reality and be less than the standard negative pressure value, can detect the negative pressure that the dust catcher provided according to actual operation's needs and the pipe connection of dust catcher simultaneously, the staff judges the fault point when convenient calibration detects.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. Negative pressure sieve calibrating device includes mount pad (1) and adjustment mechanism (2), its characterized in that: the utility model discloses a negative pressure test device, including mount pad (1), installation seat (1), connecting pipe (5), the upper end of connecting pipe (5) is provided with install bin (6), the lower extreme of the inside one side of install bin (6) is provided with pipe (7), the one end setting of pipe (7) is on connecting pipe (5), be provided with governing valve (8) on pipe (7), the upper end of the inside opposite side of install bin (6) is provided with negative pressure detector (9), negative pressure detector (9) set up on connecting pipe (5), adjustment mechanism (2) set up the inside at mount pad (1).

2. The negative pressure screen calibration device of claim 1, wherein: adjustment mechanism (2) comprise adjustable ring (21), rubidium magnet piece (22), rubidium magnet ring (23), control tube (24) and connector tube head (25), there is adjustable ring (21) through seting up external screw thread connection on the lateral surface of connecting pipe (5), be provided with a plurality of rubidium magnet piece (22) on adjustable ring (21), there are rubidium magnet ring (23) through seting up internal thread connection on the inside wall of connecting pipe (5), be provided with control tube (24) on the inside wall of rubidium magnet ring (23), the lower extreme of control tube (24) is provided with connector tube head (25).

3. The negative pressure screen calibration device of claim 1, wherein: and a sealing gasket (102) is arranged on the outer side surface of the lower end surface of the mounting seat (1).

4. The negative pressure screen calibration device of claim 2, wherein: the fixing device is characterized in that a fixing rod (10) is arranged in the mounting seat (1) and at the upper end of the negative pressure screen (3), a fixing ring (11) is arranged at the other end of the fixing rod (10), and a plurality of air guide holes (241) are formed in the adjusting pipe (24).

5. The negative pressure screen calibration device of claim 1, wherein: and sealing rings (12) are arranged on the outer surface of the upper end of the conical connecting cover (4), the upper end surface of the inner part and the inner side of the negative pressure screen (3).

6. The negative pressure screen calibration device of claim 1, wherein: the two sides of the outer side face of the upper end of the conical connecting cover (4) are provided with supporting rods (13), and the upper ends of the supporting rods (13) are arranged on the lower end face of the mounting box (6).

7. The negative pressure screen calibration device of claim 2, wherein: the upper end face of the installation box (6) is movably provided with a box cover (14), the lower end face of the box cover (14) is provided with a limiting ring (15) matched with the adjusting pipe (24), and the installation box (6) is provided with a transparent window (61) matched with the negative pressure detector (9).

8. The negative pressure screen calibration device of claim 1, wherein: one end of the guide pipe (7) far away from the connecting pipe (5) is arranged on the outer side of the mounting box (6).