CN212989269U

CN212989269U - JSC simulation experiment device

Info

Publication number: CN212989269U
Application number: CN202021353685.5U
Authority: CN
Inventors: 谢先龙; 周鲲鹏; 谢武飞; 徐应盛; 樊春华
Original assignee: Hunan Juntai New Material Technology Co ltd
Current assignee: Hunan Juntai New Material Technology Co ltd
Priority date: 2020-07-11
Filing date: 2020-07-11
Publication date: 2021-04-16
Anticipated expiration: 2030-07-11

Abstract

The utility model discloses a JSC emulation experimental apparatus relates to the experimental apparatus that fiber raw materials prehydrolysis was cooked, it includes the emulation experiment cauldron, the emulation experiment cauldron includes the cauldron body, cauldron body top sets up the pot mouth flange, pot mouth flange lower extreme sets up the upper portion sieve, cauldron body lower extreme sets up unloading valve pipe and first control flap, the internal lower part sieve that sets up of cauldron, cauldron body upper end lateral wall communicates hot towards jar and replacement tank through first pipeline in proper order, set gradually the circulating pump along hot towards jar direction on the first pipeline, a weighing sensor and a temperature sensor, first control flap, second control flap and cooler, the second pipe connection that first control flap and second control flap set up is to the end lateral wall under the cauldron body. The utility model discloses can simulate the process of fiber raw materials prehydrolysis cooking, can regard as the practice of colleges and universities research teaching to use, comparatively audio-visual embodies the process that raw materials dress pot, prehydrolysis, white liquor neutralization, hot-flushing liquid replacement, cook.

Description

JSC simulation experiment device

Technical Field

The utility model relates to a fiber raw materials experimental apparatus who prehydrolyzes the digestion specifically is a JSC emulation experimental apparatus.

Background

At present, the experimental device used for prehydrolysis cooking of fiber raw materials by domestic colleges and scientific research institutions is basically a traditional 4X 1.5L rotary electric heating kettle, clear water in the electric heating kettle is transferred to a small sealed feeding tank in the kettle through heat, then prehydrolysis and cooking are carried out, steam is exhausted, cooling and cover opening are needed after the prehydrolysis is finished, prehydrolysis liquid in the small tank is poured out, and cooking liquid is added for cooking; the slightly better is an imported 15L cooking kettle with cooking liquid external heating circulation control, after the wood chips are put into the kettle, clear water is added according to the designed liquid ratio, the clear water is electrically heated by a built-in circulating pump for prehydrolysis, after the prehydrolysis is finished, the prehydrolysis liquid is discharged from the bottom, then the exhaust, cooling and cover opening are carried out, and the cooking liquid is added for cooking. No matter the electric heating kettle is made in China or the steaming kettle is imported, in the experimental process, production cannot be simulated for neutralization, hot charging and replacement, so that the experimental result is greatly different from the actual production.

SUMMERY OF THE UTILITY MODEL

The utility model aims at above problem, provide a JSC simulation experiment device, it can simulate the process that the fiber raw materials prehydrolyzed and cooks, for upgrading the quality and reducing consumption, the operation is optimized and new product development provides technical support, can regard as the practice of colleges and universities research teaching to be used, comparatively audio-visual embodies the process that raw materials dress pot, prehydrolyze, white liquid neutralization, hot flushing liquid replacement, cook.

In order to realize the above purpose, the utility model adopts the technical scheme that: a JSC simulation experiment device comprises a simulation experiment kettle, wherein the simulation experiment kettle comprises a kettle body, a kettle opening flange is arranged at the top of the kettle body, an upper sieve plate is arranged at the lower end of the kettle opening flange and in the kettle body, a discharge valve pipe and a discharge control valve are arranged at the lower end of the kettle body, a lower sieve plate is arranged in the kettle body close to the discharge valve pipe, the side wall of the upper end of the kettle body is sequentially communicated with a hot flushing tank and a replacement tank through a first pipeline, a circulating pump, a temperature sensor, a first control valve, a second control valve and a cooler are sequentially arranged on the first pipeline along the direction of the hot flushing tank, a second pipeline arranged by the first control valve and the second control valve is connected to the side wall of the lower end of the kettle body, and a heat exchanger, a third control valve, a first liquid pump and a temperature interlocking control switch are sequentially; the fourth pipeline arranged on the side wall of the discharge valve pipe is sequentially connected with the lower end parts of the hot-flushing tank, the replacement tank and the white liquor tank.

As the utility model discloses a further optimization, condensate pipe and medium pressure steam pipe are connected to the heat exchanger, and the medium pressure steam pipe passes through the third pipeline and is connected with the low pressure steam pipe on the discharge valve door pipe lateral wall.

As the utility model discloses a further optimization, the fourth pipeline sets gradually flow sensor, fifth control flap, second drawing liquid pump, fifth pipeline and sixth control flap along hot towards jar orientation.

As the further optimization of the utility model, the upper end of the pot mouth flange is provided with a pressure interlocking control switch.

As the utility model discloses a further optimization, the second pipeline is connected with below fourth pipeline through the sixth pipeline.

As a further optimization of the utility model, the spiral winding of the outer wall of the lower end part of the hot stamping tank is provided with the electric heating tube.

As the utility model discloses a further optimization, the upper end of hot towards jar, replacement groove and white liquid jar all is provided with pressure gauge and thermometer.

As the utility model discloses a further optimization, just be provided with the sample output tube in being close to cooler position department on the first pipeline, be provided with seventh control flap on the sample output tube.

The utility model has the advantages that: the utility model provides a JSC emulation experimental apparatus can simulate the process that the fiber raw materials prehydrolysis was cooked, for upgrading quality and reducing consumption, operation optimization and new product development provide technical support, can regard as the practice of colleges and universities research teaching to use, comparatively audio-visual embodies the process that the raw materials dress pot, prehydrolysis, white liquor neutralization, hot flush liquid replacement, are cooked.

1. The utility model discloses be provided with emulation experiment cauldron, the hot jar that dashes, replacement groove and white liquid jar, pending raw materials is sent into the cauldron from pot mouth flange position department internal, carry out raw materials prehydrolysis operation under the steam action, the second drawing liquid pump extracts and goes out with the white liquid in the white liquid jar, carry to the emulation experiment cauldron in from fourth pipeline position department, export from first pipeline position department, carry out in the acid-base neutralization operation, the hot liquid that dashes in the hot jar is extracted by the second drawing liquid pump and is gone out, carry to the emulation experiment cauldron in from fourth pipeline position department, see off from first pipeline position department, fully replace the neutralization solution in the emulation experiment cauldron, realize the replacement operation, the design science, and practicability is convenient, comparatively audio-visual raw materials dress pot that embodies, prehydrolysis, in the white liquid, the hot liquid replacement, the process of cooking, can regard as the practice of colleges and universities research teaching and universities to use.

Drawings

Fig. 1 is a schematic view of the structure of the present invention.

The text labels in the figures are represented as: 1. a simulation experiment kettle; 2. a first conduit; 3. a second conduit; 4. a heat exchanger; 5. a condensate pipe; 6. a medium pressure steam pipe; 7. a third pipeline; 8. a low pressure steam pipe; 9. a fourth conduit; 10. a fifth pipeline; 11. hot-punching the can; 12. a replacement tank; 13. a white liquor tank; 14. a pressure gauge; 15. a thermometer; 16. a sampling output pipe; 17. a circulation pump; 101. a pan mouth flange; 102. an upper screen deck; 103. a kettle body; 104. a lower sieve plate; 105. a discharge valve tube; 106. a discharge control valve; 107. a pressure interlock control switch; 201. a temperature sensor; 202. a first control valve; 203. a second control valve; 204. a cooler; 301. a third control valve; 302. a first liquid pump; 303. a fourth control valve; 304. a temperature interlock control switch; 305. a sixth pipeline; 901. a flow sensor; 902. a fifth control valve; 903. a second liquid pump; 1001. a sixth control valve; 1101. an electric heating tube; 1601. and a seventh control valve.

Detailed Description

In order to make the technical solution of the present invention better understood, the present invention is described in detail below with reference to the accompanying drawings, and the description of the present invention is only exemplary and explanatory, and should not be construed as limiting the scope of the present invention.

As shown in fig. 1, the specific structure of the present invention is: the device comprises a simulation experiment kettle 1, wherein the simulation experiment kettle 1 comprises a kettle body 103, a kettle opening flange 101 is arranged at the top of the kettle body 103, an upper sieve plate 102 is arranged at the lower end of the kettle opening flange 101 and in the kettle body 103, a discharge valve pipe 105 and a discharge control valve 106 are arranged at the lower end of the kettle body 103, a lower sieve plate 104 is arranged in the kettle body 103 close to the discharge valve pipe 105, the side wall of the upper end of the kettle body 103 is sequentially communicated with the upper end of a hot flushing tank 11 and a replacement tank 12 through a first pipeline 2, a circulating pump 17, a temperature sensor 201, a first control valve 202, a second control valve 203 and a cooler 204 are sequentially arranged on the first pipeline 2 along the direction of the hot flushing tank 11, and a second pipeline 3 arranged on the first control valve 202 and the second control valve 203 is connected to the side wall of, the second pipeline 3 is provided with a heat exchanger 4, a third control valve 301, a first liquid pump 302 and a temperature interlocking control switch 304 in sequence from bottom to top; the fourth pipeline 9 arranged on the side wall of the discharge valve pipe 105 is sequentially connected with the lower end parts of the hot flushing tank 11, the replacement tank 12 and the white liquid tank 13, the diameter of the pot opening flange 101 can be set to be 300mm, the upper sieve plate 102 and the lower sieve plate 104 can be set to be 100mm high and 30mm away from the inner wall of the kettle body 103, the top pressure of the kettle body 103 is controlled to be 7-10bar, the effective volume of the hot flushing tank 11 can be 200L, the top pressure of the hot flushing tank 11 is controlled to be 4-5bar, the electric heating pipe 1101 can heat the hot flushing liquid in the hot flushing tank 11 to 150 ℃, the effective volume of the replacement tank 12 can be 200L, the top pressure is controlled to be 4-5bar, the effective volume of the white liquid tank 13 can be 100L, the top pressure is controlled to be 4-5bar, the whole device is connected with waste gas treatment equipment for waste gas collection and treatment through a pipeline, the waste gas treatment equipment can be treated by a waste gas, treatment concentration of 0-1200mg/m, and the processing air volume is 20000m³And/h, the emission after the waste gas purification meets the GB162971996 Integrated emission Standard of air pollutants.

Preferably, the heat exchanger 4 is connected with a condensate pipe 5 and a medium pressure steam pipe 6, and the medium pressure steam pipe 6 is connected with a low pressure steam pipe 8 on the side wall of the discharge valve pipe 105 through a third pipeline 7.

Preferably, the fourth pipeline 9 is provided with a flow sensor 901, a fifth control valve 902, a second liquid pump 903, a fifth pipeline 10 and a sixth control valve 1001 in sequence along the direction of the hot-flushing tank 11.

Preferably, the upper end of the pan opening flange 101 is provided with a pressure interlocking control switch 107.

Preferably, the second duct 3 is connected to the lower fourth duct 9 by a sixth duct 305.

Preferably, the electric heating tube 1101 is spirally wound on the outer wall of the lower end of the hot stamping pot 11.

Preferably, the pressure gauge 14 and the thermometer 15 are provided at the upper end portions of the hot rinsing tank 11, the replacement vessel 12 and the white liquor tank 13.

Preferably, a sampling output pipe 16 is disposed on the first pipe 2 at a position close to the cooler 204, and a seventh control valve 1601 is disposed on the sampling output pipe 16.

The specific working principle is as follows: the raw material to be treated is sent into the kettle body 103 from the position of the pot opening flange 101, the raw material prehydrolysis operation is carried out under the action of steam, the white liquor in the white liquor tank 13 is extracted by the second liquor pump 903, the white liquor is conveyed into the simulation experiment kettle 1 from the position of the fourth pipeline 9 and is output from the position of the first pipeline 2 to carry out acid-base neutralization operation, the hot flushing liquor in the hot flushing tank 11 is extracted by the second liquor pump 903 and is conveyed into the simulation experiment kettle 1 from the position of the fourth pipeline 9 and is conveyed out from the position of the first pipeline 2 to fully replace the neutralization liquor in the simulation experiment kettle 1, the replacement operation is realized, the design is scientific, the practicability and the convenience are realized, the processes of raw material pot filling, prehydrolysis, white liquor neutralization, hot flushing liquor replacement and cooking are visually embodied, and the method can be used as the practice application of college research and teaching.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The principles and embodiments of the present invention have been explained herein using specific examples, which are presented only to assist in understanding the methods and their core concepts. The foregoing is only a preferred embodiment of the present invention, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes can be made without departing from the principle of the present invention, and the above technical features can be combined in a proper manner; the application of these modifications, variations or combinations, or the application of the concepts and solutions of the present invention in other contexts without modification, is not intended to be considered as a limitation of the present invention.

Claims

1. The JSC simulation experiment device is characterized by comprising a simulation experiment kettle (1), wherein the simulation experiment kettle (1) comprises a kettle body (103), a kettle opening flange (101) is arranged at the top of the kettle body (103), an upper sieve plate (102) is arranged at the lower end of the kettle opening flange (101) and in the kettle body (103), a discharge valve pipe (105) and a discharge control valve (106) are arranged at the lower end of the kettle body (103), a lower sieve plate (104) is arranged in the kettle body (103) close to the discharge valve pipe (105), the side wall of the upper end of the kettle body (103) is sequentially communicated with the upper end of a hot flushing tank (11) and a displacement tank (12) through a first pipeline (2), a circulating pump (17), a temperature sensor (201), a first control valve (202), a second control valve (203) and a cooler (204) are sequentially arranged on the first pipeline (2) along the direction of the hot flushing tank (11), and the second pipeline (3) arranged on the first control valve (202) and the second control valve (203) is connected to the kettle body (103) 103) The heat exchanger (4), the third control valve (301), the first liquid pump (302) and the temperature interlocking control switch (304) are arranged on the side wall of the lower end part of the second pipeline (3) in sequence from bottom to top; a fourth pipeline (9) arranged on the side wall of the discharge valve pipe (105) is sequentially connected with the lower end parts of the hot washing tank (11), the replacement tank (12) and the white liquor tank (13).

2. The JSC simulation experiment device according to the claim 1, wherein the heat exchanger (4) is connected with a condensate pipe (5) and a medium pressure steam pipe (6), and the medium pressure steam pipe (6) is connected with a low pressure steam pipe (8) on the side wall of the discharge valve pipe (105) through a third pipeline (7).

3. The JSC simulation experiment device according to the claim 1, wherein the fourth pipeline (9) is provided with a flow sensor (901), a fifth control valve (902), a second liquid pump (903), a fifth pipeline (10) and a sixth control valve (1001) in sequence along the direction of the hot-flushing tank (11).

4. The JSC simulation experiment device according to claim 1, wherein a pressure interlock control switch (107) is arranged at the upper end of the pot mouth flange (101).

5. A JSC simulation experiment device according to claim 1, characterised in that the second pipe (3) is connected to the fourth pipe (9) below via a sixth pipe (305).

6. The JSC simulation experiment device according to the claim 1, wherein the outer wall of the lower end part of the hot stamping tank (11) is spirally wound with an electrothermal tube (1101).

7. The JSC simulation experiment device according to the claim 1, wherein the upper end parts of the hot flushing tank (11), the replacement tank (12) and the white liquor tank (13) are provided with a pressure gauge (14) and a temperature gauge (15).

8. The JSC simulation experiment device according to the claim 1, wherein the sampling output pipe (16) is arranged on the first pipeline (2) and at the position close to the cooler (204), and the seventh control valve (1601) is arranged on the sampling output pipe (16).