CN202099682U - Controller for detecting papermaking approach flow concentration - Google Patents
Controller for detecting papermaking approach flow concentration Download PDFInfo
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- CN202099682U CN202099682U CN 201120180449 CN201120180449U CN202099682U CN 202099682 U CN202099682 U CN 202099682U CN 201120180449 CN201120180449 CN 201120180449 CN 201120180449 U CN201120180449 U CN 201120180449U CN 202099682 U CN202099682 U CN 202099682U
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Abstract
The utility model relates to the field for controlling and monitoring the concentration of paper pulp, in particular to a controller for detecting papermaking approach flow concentration. The controller comprises a white water pipe, a pulp pipe, a front papermaking pump, a pulping pump and a return pipe, wherein an output end of the white water pipe is connected with the pulp pipe, an output end of the pulp pipe is connected with an input end of the front papermaking pump, an output end of the front papermaking pump is connected with an input end of the pulping pump, an output end of the pulping pump is connected with an input end of a screening system, an output end of the screening system is connected with an input end of a pulp flowing box, the tail of the pulp flowing box is connected with the return pipe, a pulping concentration meter is arranged between the front papermaking pump and the pulping pump, a return concentration meter is arranged on the return pipe, a pulping concentration adjusting valve is arranged on the white water pipe, and an output end of the return pipe is connected between the pulping concentration meter and the pulping pump. The controller is simple in structure, and the stability of the approach flow pulp concentration can be effectively guaranteed, so that the quality of the paper pulp can be improved.
Description
Technical field
The utility model relates to a kind of pulp density Monitoring and Controlling field, relates in particular to a kind of online concentration detection control apparatus of manufacturing paper with pulp.
Background technology
In making the paper pulp industry, its master operation flow process comprises: get the raw materials ready, boiling, screening, washing, bleach, manufacture paper with pulp etc.The finished product slurry is processed paddle board need pass through net forming, press dewatering, drying and other steps.
Slurry through the plain boiled water dilution, is pumped to head box through starching pump earlier then, processes paddle board through last net forming, squeezing, drying and other steps again.The head box afterbody is connected with return duct, is used to collect the unnecessary slurry that refluxes from head box, in the slurry conveyance conduit of unnecessary slurry before return duct is back to starching pump of head box backflow, and recycle.
Slurry on head box during net forming, ensure its steady concentration property to the dehydration of slurry, process paper pulp quality all extremely important.Slurry owing to manufacture paper with pulp before the online comprises the mixed slurry that plain boiled water and return duct reflux, and the concentration when its online is manufactured paper with pulp is unstable, influences the quality of finished product paper pulp.
To sum up, need a kind of online concentration detection control apparatus of manufacturing paper with pulp to overcome above-mentioned technological deficiency.
Summary of the invention
The purpose of the utility model is to the deficiency of prior art a kind of online concentration detection control apparatus of manufacturing paper with pulp to be provided; Simple in structure; Easy for installation; Can monitor and regulate the preceding slurry concentration of online of manufacturing paper with pulp, guarantee the stability of online slurry concentration, thereby reach the purpose of the quality that ensures finished product paper pulp.
For achieving the above object, the utility model is realized through following technical scheme.
A kind of online concentration detection control apparatus of manufacturing paper with pulp; Comprise white water pipe, slurry pipe, copy front pump, starching pump and return duct, the output of white water pipe connects slurry pipe, the output of slurry pipe is connected with the input of copying front pump; Delivery side of pump is connected with the input of starching pump before copying; The starching delivery side of pump is connected to the input of screening system, and the output of screening system is connected with the input of head box, and the afterbody of head box is connected with return duct; Copy and be provided with the starching densimeter between front pump and the starching pump; Return duct is provided with the backflow densimeter, and white water pipe is provided with starching concentration adjustment valve, and the output of return duct is connected between starching densimeter and the starching pump.
Wherein, copy between front pump and the starching pump, between starching pump and the screening system, all adopt unidirectional conveyance conduit to be connected between screening system and the head box.
Wherein, said screening system comprises pressurized screen and desander, and the starching delivery side of pump is connected with the input of pressurized screen, and the output of pressurized screen is connected with the input of desander, and the output of desander is connected with the input of head box.
Wherein, the output of return duct is plugged on the pipeline between starching densimeter and the starching pump through welding manner.
Wherein, said starching densimeter includes the starching concentration sensor, and said starching concentration sensor is a moving-blade starching concentration sensor.
Wherein, said backflow densimeter includes the backflow concentration sensor, and said backflow concentration sensor is a moving-blade backflow concentration sensor.
Wherein, said starching concentration adjustment valve is the cock-type control valve.
The beneficial effect of the utility model is: a kind of online concentration detection control apparatus of manufacturing paper with pulp; Comprise white water pipe, slurry pipe, copy front pump, starching pump and return duct, the output of white water pipe connects slurry pipe, the output of slurry pipe is connected with the input of copying front pump; Delivery side of pump is connected with the input of starching pump before copying; The starching delivery side of pump is connected to the input of screening system, and the output of screening system is connected with the input of head box, and the afterbody of head box is connected with return duct; Copy and be provided with the starching densimeter between front pump and the starching pump; Return duct is provided with the backflow densimeter, and white water pipe is provided with starching concentration adjustment valve, and the output of return duct is connected between starching densimeter and the starching pump.Slurry is through plain boiled water dilution, and the concentration after its dilution can't Detection & Controling, causes from the slurry concentration of head box online unstablely, influences pulp quality.The utility model is provided with the starching densimeter copying between front pump and the starching pump, can conveniently detect from copying the slurry concentration of front pump output; Return duct is provided with the backflow densimeter, and the slurry concentration that refluxes owing to return duct is suitable with the slurry concentration of surfing the Net from head box, and the slurry concentration that therefore detects the return duct backflow can detect from the slurry concentration of head box online; White water pipe is provided with starching concentration adjustment valve, regulates the starching concentration adjustment valve on the white water pipe, the plain boiled water flow of control white water pipe output, thus regulate the slurry concentration that head box is surfed the Net.The utility model is simple in structure, and is easy for installation, can monitor and regulate the preceding slurry concentration of online of manufacturing paper with pulp, and guarantees the stability of online slurry concentration, to ensure the finished product pulp quality.
Description of drawings
Utilize accompanying drawing to come the utility model is further described below, but the embodiment in the accompanying drawing does not constitute any restriction to the utility model.
Fig. 1 is the frame structure sketch map of the utility model.
In Fig. 1, include:
10---white water pipe 11---slurry pipe 12---is copied front pump 13---starching densimeters
14---starching pump 15---screening system 151---pressurized screen 152---desanders
16---head box 17---return duct 18---backflow densimeter 19---starching concentration adjustment valves.
The specific embodiment
Come the utility model is further described below in conjunction with embodiment.
A kind of online concentration detection control apparatus of manufacturing paper with pulp; Comprise white water pipe 10, slurry pipe 11, copy front pump 12, starching pump 14 and return duct 17, the output of white water pipe 10 connects slurry pipe 11, the output of slurry pipe 11 is connected with the input of copying front pump 12; The output of copying front pump 12 is connected with the input of starching pump 14; The output of starching pump 14 is connected with the input of screening system 15, and the output of screening system 15 is connected with the input of head box 16, and the afterbody of head box 16 is connected with return duct 17; Copy between front pump 12 and the starching pump 14 and be provided with starching densimeter 13; Return duct 17 is provided with backflow densimeter 18, and white water pipe 10 is provided with starching concentration adjustment valve 19, and the output of return duct 17 is connected between starching densimeter 13 and the starching pump 14.Slurry is through plain boiled water dilution, and the concentration after its dilution can't Detection & Controling, causes from the slurry concentration of head box 16 online unstablely, influences pulp quality.Starching densimeter 13 is set copying between front pump 12 and the starching pump 14, can conveniently detects from copying the slurry concentration of front pump 12 outputs; Return duct 17 is provided with backflow densimeter 18, and the slurry concentration that refluxes owing to return duct 17 is suitable with the slurry concentration of surfing the Net from head box 16, and the slurry concentration that therefore detects return duct 17 backflows can detect from the slurry concentration of head box 16 online; White water pipe 10 is provided with starching concentration adjustment valve 19, regulates the starching concentration adjustment valve 19 on the white water pipe 10, the plain boiled water flow of control white water pipe 10 outputs, thus regulate the slurry concentration that head box 16 is surfed the Net.It is simple in structure, and is easy for installation, can monitor and regulate the preceding slurry concentration of online of manufacturing paper with pulp, and guarantees the stability of online slurry concentration, to ensure the finished product pulp quality.
Further, copy between front pump 12 and the starching pump 14, between starching pump 14 and the screening system 15, all adopt unidirectional conveyance conduit to be connected between screening system 15 and the head box 16, guarantee slurry smooth and easy conveying in the connection pipeline between each parts again.
Further; Said screening system 15 comprises pressurized screen 151 and desander 152; The output of starching pump 14 is connected with the input of pressurized screen 151, and the output of pressurized screen 151 is connected with the input of desander 152, and the output of desander 152 is connected with the input of head box 16.Slurry wherein contains impurity after the plain boiled water dilution, need to remove impurity through screening system 15, and the non-defective unit slurry after screening system 15 screenings is from the output output of screening system 15.Screening system 15 comprises pressurized screen 151 and desander 152, and pressurized screen 151 and desander 152 are the conventional machinery equipment of paper pulp manufacturing, and no longer large fierce dog is stated here.
Further; The output of return duct 17 is plugged on the pipeline between starching densimeter 13 and the starching pump 14 through welding manner; Because the output that the slurry concentration that return duct 17 refluxes, is therefore starched return duct 17 with suitable through plain boiled water slurry after dilution concentration and starching densimeter 13 are connected the employing welding manner with pipeline between the starching pump 14; It is simple to operation, and is easy to implement.
Further, said starching densimeter 13 includes the starching concentration sensor, and said starching concentration sensor is a moving-blade starching concentration sensor.Said backflow densimeter 18 includes the backflow concentration sensor, and said backflow concentration sensor is a moving-blade backflow concentration sensor.The sensor of existing densimeter have the rotatable concentration sensor of outward turning, in rotary concentration sensor, quiet cutter formula concentration sensor, moving-blade concentration sensor.The sensor of densimeter is selected the moving-blade concentration sensor for use in this instance, and its cost performance is high, detects accurately.
Further, said starching concentration adjustment valve 19 is the cock-type control valve, and the cock-type control valve is simple to operation, can regulate and control the plain boiled water output flow apace, thereby can be more accurately and regulate slurry concentration apace.
Above content is merely the preferred embodiment of the utility model; For those of ordinary skill in the art; According to the thought of the utility model, the part that on the specific embodiment and range of application, all can change, this description should not be construed as the restriction to the utility model.
Claims (7)
1. online concentration detection control apparatus of manufacturing paper with pulp; Comprise white water pipe, slurry pipe, copy front pump, starching pump and return duct, the output of white water pipe connects slurry pipe, the output of slurry pipe is connected with the input of copying front pump; Delivery side of pump is connected with the input of starching pump before copying; The starching delivery side of pump is connected to the input of screening system, and the output of screening system is connected with the input of head box, and the afterbody of head box is connected with return duct; It is characterized in that: copy and be provided with the starching densimeter between front pump and the starching pump; Return duct is provided with the backflow densimeter, and white water pipe is provided with starching concentration adjustment valve, and the output of return duct is connected between starching densimeter and the starching pump.
2. a kind of online concentration detection control apparatus of manufacturing paper with pulp according to claim 1 is characterized in that: copy between front pump and the starching pump, between starching pump and the screening system, all adopt unidirectional conveyance conduit to be connected between screening system and the head box.
3. a kind of online concentration detection control apparatus of manufacturing paper with pulp according to claim 2; It is characterized in that: said screening system comprises pressurized screen and desander; The starching delivery side of pump is connected with the input of pressurized screen; The output of pressurized screen is connected with the input of desander, and the output of desander is connected with the input of head box.
4. a kind of online concentration detection control apparatus of manufacturing paper with pulp according to claim 3, it is characterized in that: the output of return duct is plugged on the pipeline between starching densimeter and the starching pump through welding manner.
5. a kind of online concentration detection control apparatus of manufacturing paper with pulp according to claim 1, it is characterized in that: said starching densimeter includes the starching concentration sensor, and said starching concentration sensor is a moving-blade starching concentration sensor.
6. a kind of online concentration detection control apparatus of manufacturing paper with pulp according to claim 1, it is characterized in that: said backflow densimeter includes the backflow concentration sensor, and said backflow concentration sensor is a moving-blade backflow concentration sensor.
7. a kind of online concentration detection control apparatus of manufacturing paper with pulp according to claim 1, it is characterized in that: said starching concentration adjustment valve is the cock-type control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120180449 CN202099682U (en) | 2011-05-31 | 2011-05-31 | Controller for detecting papermaking approach flow concentration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120180449 CN202099682U (en) | 2011-05-31 | 2011-05-31 | Controller for detecting papermaking approach flow concentration |
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| Publication Number | Publication Date |
|---|---|
| CN202099682U true CN202099682U (en) | 2012-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120180449 Expired - Fee Related CN202099682U (en) | 2011-05-31 | 2011-05-31 | Controller for detecting papermaking approach flow concentration |
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| Country | Link |
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| CN (1) | CN202099682U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105525526A (en) * | 2015-09-22 | 2016-04-27 | 芬欧汇川(中国)有限公司 | Pulping sytem |
| CN106625982A (en) * | 2016-10-19 | 2017-05-10 | 河南鑫饰板业有限公司 | Fiber stuff concentration control device |
-
2011
- 2011-05-31 CN CN 201120180449 patent/CN202099682U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105525526A (en) * | 2015-09-22 | 2016-04-27 | 芬欧汇川(中国)有限公司 | Pulping sytem |
| CN106625982A (en) * | 2016-10-19 | 2017-05-10 | 河南鑫饰板业有限公司 | Fiber stuff concentration control device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120104 Termination date: 20180531 |