CN203842672U - Feeding pump protecting device of vertical type round disc sand mill - Google Patents
Feeding pump protecting device of vertical type round disc sand mill Download PDFInfo
- Publication number
- CN203842672U CN203842672U CN201420274765.XU CN201420274765U CN203842672U CN 203842672 U CN203842672 U CN 203842672U CN 201420274765 U CN201420274765 U CN 201420274765U CN 203842672 U CN203842672 U CN 203842672U
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- China
- Prior art keywords
- cylindrical part
- valve
- guide portion
- sand mill
- valve stem
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- Expired - Fee Related
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Abstract
The utility model provides a feeding pump protecting device of a vertical type round disc sand mill. The feeding pump protecting device is arranged at a feeding tube outlet end for feeding materials into a grinding chamber of the vertical type round disc sand mill, and comprises an upper cylindrical part, a lower cylindrical part, an air valve, an air valve guide part and a compression spring, wherein a flange is arranged at the lower end of the upper cylindrical part; another flange is arranged at the upper end of the lower cylindrical part; the upper cylindrical part and the lower cylindrical part are connected through the flanges; the air valve guide part is positioned inside the upper cylindrical part, is provided with an air valve rod guide hole which is coaxial with the upper cylindrical part, is fixed on the inner wall of the upper cylindrical part and is provided with a material flowing channel which are communicated up and down; the air valve rod is positioned inside the air valve rod guide hole; an air valve head is located on the upper end sealing surface of the upper cylindrical part; the air valve rod which is positioned below the air valve guide part is sleeved with the compression spring; a lower spring base is arranged at the lower end part of the air valve rod; the compression spring is positioned between the air valve guide part and the lower spring base. By adopting the feeding pump protecting device, the abrasion on a feeding pump is alleviated, and thus the service life of the feeding pump is prolonged.
Description
technical field
The utility model relates to a kind of feed pump protective device of vertical disc sand mill.
background technology
In the time that feed pump cuts out, stop feeding, abrasive media in grinding chamber forms and pours in down a chimney phenomenon, adverse current enters feed pump, and in the time that feed pump restarts, abrasive media will be trapped in feed pump at feed pump start of run, the wearing and tearing of feed pump blade and other flow passage components are accelerated, shorten the service life of feed pump, the running efficiency of sand mill is reduced, increased production cost.
summary of the invention
The technical problems to be solved in the utility model is to provide a kind of feed pump protective device of vertical disc sand mill, and it can reduce the wearing and tearing of feed pump, extends the service life of feed pump.
In order to solve the problems of the technologies described above, the technical solution of the utility model is:
A kind of feed pump protective device of vertical disc sand mill, be arranged at the feed pipe port of export toward the charging of vertical disc sand mill grinding chamber, comprise cylindrical part, lower cylindrical part, valve, valve guide portion and stage clip, upper tubular subordinate's end is provided with flange, lower cylindrical part upper end is provided with flange, upper cylindrical part is connected by flange with lower cylindrical part, valve guide portion is positioned at cylindrical part, valve guide portion has the valve stem guide hole coaxial with upper cylindrical part, valve guide portion is fixed on cylindrical part inwall, valve guide portion has the material stream passed passage running through up and down, valve stem is positioned at valve stem guide hole, valve disc is seated on the sealing surface of cylindrical part upper end, be positioned at cover on the valve stem of valve guide portion below and have stage clip, valve stem bottom is provided with spring lower seat, stage clip is between valve guide portion and spring lower seat, the bottom of lower cylindrical part has external screw thread, the bottom of lower cylindrical part is threaded with the female feed pipe port of export of tool.
The feed pump protective device of above-mentioned vertical disc sand mill; spring lower seat is nut; nut is threaded with valve stem bottom; the valve stem lower end nut protecting hood that has also been threaded; nut protecting hood comprises cylindrical section and diminishing lower converging transition from top to bottom; upper cylindrical section has the central blind hole of upper shed; central blind hole below is provided with internal thread hole; internal thread hole is blind hole and is opened on central blind hole bottom surface; the internal thread hole of nut protecting hood is threaded with valve stem lower end, and nut is positioned at nut protecting hood central blind hole.
The feed pump protective device of above-mentioned vertical disc sand mill, valve guide portion is cross shaped member, and valve stem guide hole is located at the center of valve guide portion, and the outer end of valve guide portion is fixed on cylindrical part inwall.
The feed pump protective device of above-mentioned vertical disc sand mill, valve guide portion is disc, and valve stem guide hole is located at the center of disc, and the outer rim of disc is fixed on cylindrical part inwall, and material stream passed passage is uniformly distributed on disc.
The feed pump protective device of above-mentioned vertical disc sand mill, is provided with drainage channel in the barrel of upper cylindrical part, and drainage channel one end is opened on cylindrical part upper end sealing surface, and the other end is opened on cylindrical part inwall.
The feed pump protective device of above-mentioned vertical disc sand mill, is provided with drainage channel in the barrel of upper cylindrical part, and drainage channel one end is opened on cylindrical part upper end sealing surface, and the other end is opened on cylindrical part outer wall.
The feed pump protective device of above-mentioned vertical disc sand mill, upper cylindrical part flange and lower cylindrical part flange are male and female flange.
In the time that feed pump is worked; material with pressure overcomes top valve disc on stage clip active force, opens the sealing forming between valve disc and upper cylindrical part, and material can be smoothly by entering grinding chamber; in the time that feed pump quits work; in feed pipe, material pressure declines, and under the effect of stage clip, valve moves down; between valve disc and upper cylindrical part, re-establish sealing; at this moment, the abrasive media in grinding chamber can not pour in down a chimney in feed pipe and feed pump, and feed pump has been formed to protection.
brief description of the drawings
Below in conjunction with accompanying drawing to further detailed explanation of the utility model:
Fig. 1 is the structural representation of the utility model the first embodiment.
Fig. 2 is the structural representation of the utility model the second embodiment.
In figure: 1 time cylindrical part, 2 valve stems, 3 flanges, 4 flanges, 5 material stream passed passages, cylindrical part on 6,7 valve discs, 8 drainage channels, 9 valve guide portion, 10 stage clips, 11 spring lower seats, 12 nut protecting hoods.
Detailed description of the invention
As shown in Figure 1, a kind of feed pump protective device of vertical disc sand mill, is arranged at the feed pipe port of export toward the charging of vertical disc sand mill grinding chamber.Feed pump protective device comprises cylindrical part 6, lower cylindrical part 1, valve, valve guide portion 9 and stage clip 10.Upper tubular subordinate's end is provided with flange 4, and lower cylindrical part upper end is provided with flange 3, and upper cylindrical part is connected by flange with lower cylindrical part.Valve guide portion is positioned at cylindrical part, and valve guide portion has the valve stem guide hole coaxial with upper cylindrical part, thinks valve stem guiding.Valve guide portion is fixed on cylindrical part inwall, and valve guide portion has the material stream passed passage 5 running through up and down, so that material can be passed through.Valve stem 2 is positioned at valve stem guide hole, and valve disc 7 is seated on the sealing surface of cylindrical part upper end.Being positioned at cover on the valve stem of valve guide portion below has stage clip, and stage clip provides restoring force for valve.Valve stem bottom is provided with spring lower seat 11, and stage clip is between valve guide portion and spring lower seat.The bottom of lower cylindrical part has external screw thread, and the bottom of lower cylindrical part is threaded with the female feed pipe port of export of tool.So just feed pump protective device is connected in to the feed pipe port of export.
Spring lower seat is nut, nut is threaded with valve stem bottom, the valve stem lower end nut protecting hood 12 that has also been threaded, nut protecting hood comprises cylindrical section and diminishing lower converging transition from top to bottom, upper cylindrical section has the central blind hole of upper shed, and central blind hole below is provided with internal thread hole, and internal thread hole is blind hole and is opened on central blind hole bottom surface, the internal thread hole of nut protecting hood is threaded with valve stem lower end, and nut is positioned at nut protecting hood central blind hole.Nut protecting hood surrounds the screw thread of nut and valve stem lower end, has avoided in material stream passed process, to the grinding of this part, avoiding occurring the generation of valve dismounting difficulty or Automatic-falling phenomenon.
The structure of valve guide portion is: valve guide portion is a cross shaped member, and valve stem guide hole is located at the center of valve guide portion, and the outer end of valve guide portion is fixed on cylindrical part inwall.
The structure of another kind of valve guide portion is: valve guide portion is disc, and valve stem guide hole is located at the center of disc, and the outer rim of disc is fixed on cylindrical part inwall, and material stream passed passage is uniformly distributed on disc.
In the barrel of upper cylindrical part, be provided with drainage channel 8, drainage channel one end is opened on cylindrical part upper end sealing surface, and the other end is opened on cylindrical part inwall.The material discharge that guiding channel can go out sealing surface well in valve folding process is set, reduces the pressure on sealing face.
The set-up mode of another kind of guiding channel is: in the barrel of upper cylindrical part, be provided with drainage channel, drainage channel one end is opened on cylindrical part upper end sealing surface, and the other end is opened on cylindrical part outer wall.
Upper cylindrical part flange and lower cylindrical part flange are male and female flange, and sealing effectiveness is better.
Claims (7)
1. the feed pump protective device of a vertical disc sand mill, it is characterized in that: be arranged at the feed pipe port of export toward the charging of vertical disc sand mill grinding chamber, comprise cylindrical part, lower cylindrical part, valve, valve guide portion and stage clip, upper tubular subordinate's end is provided with flange, lower cylindrical part upper end is provided with flange, upper cylindrical part is connected by flange with lower cylindrical part, valve guide portion is positioned at cylindrical part, valve guide portion has the valve stem guide hole coaxial with upper cylindrical part, valve guide portion is fixed on cylindrical part inwall, valve guide portion has the material stream passed passage running through up and down, valve stem is positioned at valve stem guide hole, valve disc is seated on the sealing surface of cylindrical part upper end, be positioned at cover on the valve stem of valve guide portion below and have stage clip, valve stem bottom is provided with spring lower seat, stage clip is between valve guide portion and spring lower seat, the bottom of lower cylindrical part has external screw thread, the bottom of lower cylindrical part is threaded with the female feed pipe port of export of tool.
2. the feed pump protective device of vertical disc sand mill according to claim 1, it is characterized in that: spring lower seat is nut, nut is threaded with valve stem bottom, the valve stem lower end nut protecting hood that has also been threaded, nut protecting hood comprises cylindrical section and diminishing lower converging transition from top to bottom, upper cylindrical section has the central blind hole of upper shed, central blind hole below is provided with internal thread hole, internal thread hole is blind hole and is opened on central blind hole bottom surface, the internal thread hole of nut protecting hood is threaded with valve stem lower end, nut is positioned at nut protecting hood central blind hole.
3. the feed pump protective device of vertical disc sand mill according to claim 1, is characterized in that: valve guide portion is cross shaped member, and valve stem guide hole is located at the center of valve guide portion, and the outer end of valve guide portion is fixed on cylindrical part inwall.
4. the feed pump protective device of vertical disc sand mill according to claim 1; it is characterized in that: valve guide portion is disc; valve stem guide hole is located at the center of disc, and the outer rim of disc is fixed on cylindrical part inwall, and material stream passed passage is uniformly distributed on disc.
5. the feed pump protective device of vertical disc sand mill according to claim 1, is characterized in that: in the barrel of upper cylindrical part, be provided with drainage channel, drainage channel one end is opened on cylindrical part upper end sealing surface, and the other end is opened on cylindrical part inwall.
6. the feed pump protective device of vertical disc sand mill according to claim 1, is characterized in that: in the barrel of upper cylindrical part, be provided with drainage channel, drainage channel one end is opened on cylindrical part upper end sealing surface, and the other end is opened on cylindrical part outer wall.
7. the feed pump protective device of vertical disc sand mill according to claim 1, is characterized in that: upper cylindrical part flange and lower cylindrical part flange are male and female flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420274765.XU CN203842672U (en) | 2014-05-27 | 2014-05-27 | Feeding pump protecting device of vertical type round disc sand mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420274765.XU CN203842672U (en) | 2014-05-27 | 2014-05-27 | Feeding pump protecting device of vertical type round disc sand mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203842672U true CN203842672U (en) | 2014-09-24 |
Family
ID=51555736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420274765.XU Expired - Fee Related CN203842672U (en) | 2014-05-27 | 2014-05-27 | Feeding pump protecting device of vertical type round disc sand mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203842672U (en) |
-
2014
- 2014-05-27 CN CN201420274765.XU patent/CN203842672U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140924 Termination date: 20160527 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |