CN103669075A - Novel grit separator for paper making - Google Patents
Novel grit separator for paper making Download PDFInfo
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- CN103669075A CN103669075A CN201210348980.5A CN201210348980A CN103669075A CN 103669075 A CN103669075 A CN 103669075A CN 201210348980 A CN201210348980 A CN 201210348980A CN 103669075 A CN103669075 A CN 103669075A
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- desanding
- housing
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- residue removing
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Abstract
The invention provides a novel grid separator for paper making. The grid separator comprises a grit separation casing and a residue removing device. The grit separation casing comprises an internal working layer and an external support layer. The internal working layer is a ceramic material, the external support layer is a metal material, the grid separation casing is in the shape of an inverted cone frustum, the inner wall of the grit separation casing is of a spiral structure, a pulp inlet pipe is arranged on the lateral wall of the upper portion of the grit separation casing, a good pulp outlet is formed in the top end, and the bottom end is communicated with the residue removing device. The residue removing device sequentially comprises an upper residue removing valve, a residue sedimentation pipe and a lower residue removing valve from top to bottom. The upper residue removing valve is communicated with the bottom end of the grit separation casing and the top end of the residue sedimentation pipe, and the lower residue removing valve is located at the bottom end of the residue sedimentation pipe. The novel grit separator for paper making is high in strength, large in hardness, good in corrosion and abrasion resistance and long in service life, reduces the trouble of frequent replacement, ensures normal production, and reduces production cost. In addition, the upper residue removing valve and the lower residue removing valve can be opened and closed alternatively, system pulp loss is not caused while impurities in the residue sedimentation pipe is discharged, and materials are saved.
Description
Technical field
The present invention relates to paper pulp technical field of processing equipment, relate in particular to a kind of for paper-making pulping being carried out to the novel papermaking desander of desanding.
Background technology
Desander is an important composition equipment of paper industry slurry purification.Its Main Function is to purify slurry, reduces paper dust, improves machine-made paper product quality.Existing desander is when work, and slurry enters after sand removal body by stock inlet, rotational flow in sand removal body, and under the effect of centrifugal force, realize the separated of good slurry and waste residue, good slurry is discharged from grout outlet, and the slurry that contains waste residue enters collection slag pipe and temporarily deposits, and regularly from slag-drip opening, discharges.
Because paper industry is continuous mass production, and the impurity in paper pulp is as grit, iron nail etc., under the effect of high speed centrifugation power and eddying motion, the inwall working lining of desander is impacted very large, current, the desander cylindrical shell that paper mill is used is rubber cylindrical shell, its shock resistance antiwear property is poor, thereby causes the lost of life, changes frequent, impact is normal produces, and increases production cost; In addition, in processing slag removal, must there is the good slurry of part to enter collection slag pipe, in carrying out the process of deslagging, have new good slurry and enter the loss that collection slag pipe causes slurry.
Summary of the invention
The problem to be solved in the present invention be to provide a kind of anticorrosive, ABRASION RESISTANCE good, long service life and can reduce the novel papermaking desander that good slurry runs off when deslagging.
Technical scheme of the present invention is as follows: a kind of novel papermaking desander, it is characterized in that: comprise desanding housing and slag-draining device, described desanding housing comprises internal work layer and outer standoff layer, described internal work layer is ceramic material, described outer standoff layer is metal material, described desanding housing is inverted circular cone shape, described desanding inner walls is helical structure, the upper portion side wall of described desanding housing is provided with stock inlet pipe, described desanding housing top is provided with good slurry outlet, described desanding housing bottom and slag-draining device UNICOM, described slag-draining device comprises residual cake valve from top to bottom successively, sediment pipe and lower dreg discharging valve, described upper residual cake valve UNICOM desanding housing bottom and sediment pipe top, described lower dreg discharging valve is positioned at the bottom of sediment pipe.
Further, internal work layer and the outer standoff layer of described desanding housing are bonded together by bonding agent.
Further, structure during parcel that described outer standoff layer can make to surround completely, can be also to only have the tower structure that supports protective effect.
Further, the metal material of described outer standoff layer can be cast iron, common iron or stainless steel.
Further, the external wall of upper portion of described stock inlet pipe and desanding housing is tangent.
Beneficial effect of the present invention is: the present invention has adopted the combining structure of internal work layer and outer standoff layer, take full advantage of ceramic material and there is the features such as intensity is high, hardness is large, anticorrosive, ABRASION RESISTANCE is good, extended the service life of desander, reduced the trouble of frequent replacing, guarantee normal production, reduced again production cost; In addition, the slag-draining device of desanding housing bottom of the present invention is provided with upper residual cake valve and lower dreg discharging valve that can alternation switch, so that in the impurity in discharging sediment pipe, can not cause the stock losses of system, has saved material.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Wherein: 1, desanding housing, 2, slag-draining device,
3, internal work layer, 4, outer standoff layer,
5, stock inlet pipe, 6, good slurry outlet,
7, upper residual cake valve, 8, sediment pipe,
9, lower dreg discharging valve.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is made to brief description.
As shown in the figure: a kind of novel papermaking desander, it is characterized in that: comprise desanding housing 1 and slag-draining device 2, described desanding housing 1 comprises internal work layer 3 and outer standoff layer 4, described internal work layer 3 is ceramic material, described outer standoff layer 4 is metal material, described desanding housing 1 is inverted circular cone shape, described desanding housing 1 inwall is helical structure, the upper portion side wall of described desanding housing 1 is provided with stock inlet pipe 5, described desanding housing 1 top is provided with good slurry outlet 6, described desanding housing 1 bottom and slag-draining device 2 UNICOMs, described slag-draining device 2 comprises residual cake valve 7 from top to bottom successively, sediment pipe 8 and lower dreg discharging valve 9, described upper residual cake valve 7 UNICOM's desanding housing 1 bottoms and sediment pipe 8 tops, described lower dreg discharging valve 9 is positioned at the bottom of sediment pipe 8.Internal work layer 3 and the outer standoff layer 4 of described desanding housing 1 are bonded together by bonding agent; structure during parcel that described outer standoff layer 4 can make to surround completely; also can be to only have the tower structure that supports protective effect, the metal material of described outer standoff layer 4 can be cast iron, common iron or stainless steel.Described stock inlet pipe 5 is tangent with the external wall of upper portion of desanding housing 1.
Working method: the present invention in use, first upper residual cake valve 7 is opened, lower dreg discharging valve 9 cuts out, the outer wall tangent line of slurry from stock inlet pipe 5 along desanding housing 1 enters in the internal work layer 3 of desanding housing 1, under certain flow velocity and pressure, slurry produces centrifugal force along the powerful rotating operation of the inwall of desanding housing 1, because the relative density of impurity is larger, the centrifugal force being subject to is also large, so thrown to the inwall of desanding housing 1, then under Action of Gravity Field, along its inwall, move downward, by upper residual cake valve 7, enter in sediment pipe 8; At the axial centre place of desanding housing 1, because centrifugal action forms low-pressure area, the relative density of slurry is less, shifts to gradually low-pressure area, and move upward along central rotation in being rotated down motion process, from the good slurry outlet on desanding housing 1 top, discharges.When outside deslagging, first close and close residual cake valve 7, then open lower dreg discharging valve 9, the impurity being before stored in sediment pipe 8 is discharged, and first closes lower dreg discharging valve 9, then open residual cake valve 7 after deslagging.
Above one embodiment of the present of invention are had been described in detail, but described content is only preferred embodiment of the present invention, can not be considered to for limiting practical range of the present invention.All equalization variations of doing according to the present patent application scope and improvement etc., within all should still belonging to patent covering scope of the present invention.
Claims (5)
1. a novel papermaking desander, it is characterized in that: comprise desanding housing and slag-draining device, described desanding housing comprises internal work layer and outer standoff layer, described internal work layer is ceramic material, described outer standoff layer is metal material, described desanding housing is inverted circular cone shape, described desanding inner walls is helical structure, the upper portion side wall of described desanding housing is provided with stock inlet pipe, described desanding housing top is provided with good slurry outlet, described desanding housing bottom and slag-draining device UNICOM, described slag-draining device comprises residual cake valve from top to bottom successively, sediment pipe and lower dreg discharging valve, described upper residual cake valve UNICOM desanding housing bottom and sediment pipe top, described lower dreg discharging valve is positioned at the bottom of sediment pipe.
2. a kind of novel papermaking desander according to claim 1, is characterized in that: internal work layer and the outer standoff layer of described desanding housing are bonded together by bonding agent.
3. a kind of novel papermaking desander according to claim 1, is characterized in that: structure during parcel that described outer standoff layer can make to surround completely can be also to only have the tower structure that supports protective effect.
4. a kind of novel papermaking desander according to claim 1, is characterized in that: the metal material of described outer standoff layer can be cast iron, common iron or stainless steel.
5. a kind of novel papermaking desander according to claim 1, is characterized in that: the external wall of upper portion of described stock inlet pipe and desanding housing is tangent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210348980.5A CN103669075A (en) | 2012-09-18 | 2012-09-18 | Novel grit separator for paper making |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210348980.5A CN103669075A (en) | 2012-09-18 | 2012-09-18 | Novel grit separator for paper making |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103669075A true CN103669075A (en) | 2014-03-26 |
Family
ID=50307796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210348980.5A Pending CN103669075A (en) | 2012-09-18 | 2012-09-18 | Novel grit separator for paper making |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103669075A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104452403A (en) * | 2014-12-05 | 2015-03-25 | 南京林业大学 | Novel guide type high-concentration conical slag remover |
| CN105401478A (en) * | 2015-12-02 | 2016-03-16 | 浙江荣晟环保纸业股份有限公司 | Deposition desilting device for paper industry |
| CN110130137A (en) * | 2019-06-21 | 2019-08-16 | 广东理文造纸有限公司 | A kind of highly concentrated slag removing system |
-
2012
- 2012-09-18 CN CN201210348980.5A patent/CN103669075A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104452403A (en) * | 2014-12-05 | 2015-03-25 | 南京林业大学 | Novel guide type high-concentration conical slag remover |
| CN104452403B (en) * | 2014-12-05 | 2016-03-02 | 南京林业大学 | The high dense hydrocyclone of Novel guide formula |
| CN105401478A (en) * | 2015-12-02 | 2016-03-16 | 浙江荣晟环保纸业股份有限公司 | Deposition desilting device for paper industry |
| CN110130137A (en) * | 2019-06-21 | 2019-08-16 | 广东理文造纸有限公司 | A kind of highly concentrated slag removing system |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140326 |