CN217341381U - Continuous denitration reactor for H acid - Google Patents
Continuous denitration reactor for H acid Download PDFInfo
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- CN217341381U CN217341381U CN202221324845.2U CN202221324845U CN217341381U CN 217341381 U CN217341381 U CN 217341381U CN 202221324845 U CN202221324845 U CN 202221324845U CN 217341381 U CN217341381 U CN 217341381U
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Abstract
The utility model relates to a continuous denitration reactor for H acid, which comprises a base, a reaction kettle, a feed liquid barrel, a feed pipe, a discharge valve and a stirring part; the stirring part comprises a motor, a hollow stirring shaft, a feeding device and a stirring pipe; the feeding device comprises a feeding sleeve, a first feeding hole, a feeding ring groove, a second feeding hole, a discharging hole, an outer clamp spring, a feeding sleeve and a sealing ring; the stirring pipe is provided with a first liquid outlet hole and a second liquid outlet hole; a bearing is arranged between the stirring shaft and the feeding sleeve; every the bearing both sides all set up the sealing washer, the beneficial effects of the utility model are that: through feed liquid bucket, filling tube, second feed port, feeding annular, first feed port, closed material chamber, first agitator pipe and second agitator pipe, in adding the reation kettle along first liquid hole, second liquid hole with the feed liquid, along with the rotation of (mixing) shaft, the feed liquid can add more evenly.
Description
Technical Field
The utility model relates to a mix stirring technical field, especially indicate sour continuous denitration reactor of H.
Background
H acid is an important raw material in the dye industry, is mainly used for producing reactive dyes, direct dyes and acid dyes, and can also be used for producing products such as allochroic acid and the like. The chemical name of the H acid is 1-amino-8-naphthol-3, 6-disulfonic acid; the molecular formula is C10H9NO7S 2. The dried product is white to gray crystalline powder. Slightly soluble in cold water, easily soluble in hot water, soluble in alkaline solution such as sodium carbonate or caustic soda, etc., and has brownish red purple color when reacting with ferric trichloride, and dark green color when dissolved in alkaline solution. At present, the domestic H acid production mainly adopts a batch method, and the process adopted for producing H-acid by the batch method takes refined naphthalene as a main raw material and comprises the steps of sulfonation, nitration, denitration, neutralization, reduction, filter pressing, segregation, filtration, dissolution, alkali fusion, segregation, filtration, drying and the like.
The nitration and denitration process is an important step in the existing H acid preparation production process, the traditional denitration process needs to be carried out in a denitration kettle in an intermittent manner, the feed liquid is added from the top of the reaction kettle, the reaction time is long, the efficiency is low, and the improvement is needed.
In the prior art, the closest prior art is that the application number is CN201921996133.3, which is a patent for a continuous denitration reaction tank used in the preparation of H-acid, and discloses a continuous denitration reaction tank which comprises a tank body, wherein the tank body comprises an exhaust chamber, a discharging chamber and a reaction chamber, an exhaust port is formed in the top of the exhaust chamber, a liquid distributor is arranged in the exhaust chamber, and the liquid distributor is communicated with a feeding pipe through a feeding port; the reaction chamber comprises a side wall, an upper partition plate, a lower partition plate and ceramic saddle ring packing, wherein the side wall comprises an outer side wall and an inner side wall, a plurality of atomizing nozzles are uniformly arranged on the upper circumference of the inner side wall, an annular space is formed between the inner side wall and the outer side wall, the annular space is communicated with the inside of the reaction chamber through the atomizing nozzles, a water inlet is formed in the top of one side of the outer side wall, and a water outlet is formed in the bottom of the other side of the outer side wall; the bottom of the discharging chamber is provided with a discharging opening; the feed inlet and the water inlet are both provided with electromagnetic flowmeters; this patent is adding the feed liquid, adds from fixed lateral wall, causes reinforced inhomogeneous, mixes slowly, and reaction time is long, and is inefficient, needs to improve.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to provide a sour continuous denitration reactor of H, through the even feed liquid of adding of the feeding device that sets up for the rapid response, in order to shorten reaction time, improve production efficiency.
In order to solve the technical problem, the utility model provides a following technical scheme:
a continuous denitration reactor for H acid comprises a base, a reaction kettle arranged on the base, a feed liquid barrel arranged on the reaction kettle, a discharge valve arranged at the bottom of the reaction kettle and a stirring part arranged in the reaction kettle; the feed liquid barrel is communicated with the stirring part through a feed pipe; a valve is arranged on the feeding pipe;
the stirring part comprises a motor fixedly connected with the reaction kettle, a hollow stirring shaft fixedly connected with the output end of the motor, a feeding device rotatably connected with the stirring shaft, and a first stirring pipe and a second stirring pipe which are arranged on the stirring shaft;
the feeding pipe is communicated with the feeding device; the feeding device is communicated with the stirring shaft;
the first stirring pipes and the second stirring pipes are arranged at the lower part of the feeding device in two groups; a group of first stirring pipes, a group of second stirring pipes, another group of first stirring pipes and another group of second stirring pipes are sequentially arranged along the length direction of the stirring shaft; the first stirring pipe is provided with a first liquid outlet hole penetrating through the side wall of the first stirring pipe, the second stirring pipe is provided with a second liquid outlet hole penetrating through the side wall of the second stirring pipe, and the stirring shaft is respectively communicated with the first stirring pipe and the second stirring pipe;
one end of the first stirring pipe, which is far away from the stirring shaft, is a closed end; and one end of the second stirring pipe, which is far away from the stirring shaft, is a closed end.
Further, the axial direction of the first liquid outlet hole is vertical to the axial direction of the second liquid outlet hole.
Furthermore, the feeding device comprises a feeding sleeve rotatably connected with the stirring shaft, a first feeding hole arranged on the stirring shaft, a feeding ring groove arranged on the feeding sleeve, a second feeding hole arranged on the feeding sleeve, outer clamp springs arranged at two ends of the feeding sleeve and sealing rings arranged between the feeding sleeve and the stirring shaft;
the first feeding hole is respectively communicated with the stirring shaft and the feeding ring groove;
the second feeding hole is respectively communicated with the feeding pipe and the feeding ring groove;
an upper plug is arranged inside the stirring shaft and is positioned at the upper part of the first feeding hole;
the lower end part of the stirring shaft is provided with a lower plug;
the upper plug and the lower plug enclose the hollow stirring shaft into a closed material cavity, and the closed material cavity adds material liquid into the reaction kettle through the first liquid outlet hole and the second liquid outlet hole.
Further, a bearing is arranged between the stirring shaft and the feeding sleeve; and the sealing rings are arranged on two sides of each bearing.
Furthermore, the closed end of the first stirring pipe and the closed end of the second stirring pipe are both provided with liquid outlet holes.
Compared with the prior art, the beneficial effects of the utility model are that:
1. through the arranged feeding device; the feed liquid is uniformly added into the reaction kettle along the first liquid outlet hole and the second liquid outlet hole through the feed liquid barrel, the feeding pipe, the second feeding hole, the feeding ring groove, the first feeding hole, the closed material cavity, the first stirring pipe and the second stirring pipe, the feed liquid can be added more uniformly along with the rotation of the stirring shaft, the feed liquid is added more uniformly than the feed liquid at a fixed position, and the reaction time can be shortened by more than 60%; the production efficiency is improved;
2. a bearing is arranged between the stirring shaft and the feeding sleeve; the sealing rings are arranged on two sides of each bearing, so that the influence of material liquid flowing into the bearings on the performance of the bearings is avoided;
3. the feeding sleeve can be clamped on the stirring shaft through the arranged clamp spring, so that the feeding sleeve is prevented from moving up and down to influence the feeding of the material liquid;
4. through the first liquid hole that goes out that first agitator tube set up and the second that sets up on the second agitator tube goes out the liquid hole, can be with the even interpolation of feed liquid at reation kettle's material center part, great shortening reaction time.
Drawings
Fig. 1 is a schematic front view of the structure of embodiment 1 of the present invention;
FIG. 2 is a cross-sectional view taken at A of FIG. 1;
FIG. 3 is an enlarged view of FIG. 1 at B;
FIG. 4 is a cross-sectional view taken at C of FIG. 3;
FIG. 5 is an enlarged view of FIG. 1 at D;
fig. 6 is a sectional view at E of fig. 2.
In the drawings:
1-base, 2-reaction kettle, 3-motor, 4-stirring shaft, 5-upper plug, 6-feeding sleeve, 7-first stirring pipe, 9-liquid inlet valve, 10-air inlet valve, 11-liquid barrel, 12-feeding pipe, 13-lower plug, 14-liquid outlet valve, 15-outer snap spring, 16-sealing ring, 17-bearing, 18-first feeding hole, 19-feeding ring groove, 20-second feeding hole, 21-second stirring pipe and 22-second liquid outlet hole.
Detailed Description
It should be noted at the outset that the discussion of any embodiment of the present invention is merely exemplary in nature, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to these examples; there are many other variations of the different aspects of the invention as described above which are not provided in detail for the sake of brevity. Accordingly, other embodiments are within the scope of the following claims.
The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention.
Example 1
Please refer to fig. 1-6:
the embodiment provides a continuous denitration reactor for H acid, which comprises a base 1, a reaction kettle 2 arranged on the base 1, a feed liquid barrel 11 arranged on the reaction kettle 2, a discharge valve 14 arranged at the bottom of the reaction kettle 2 and a stirring part arranged in the reaction kettle 2; the liquid barrel 11 is communicated with the stirring part through a feeding pipe 12;
a raw material inlet is arranged on the reaction kettle 2, and raw materials to be reacted are added; the feeding pipe 12 is also provided with a valve for controlling the feeding speed of the feed liquid, the feed liquid can not be fed too fast or too slow, although an electric valve is adopted, the feed liquid can be fed at a constant flow rate according to the reaction speed, so that a good reaction denitration effect is achieved.
The feed liquid barrel 11 is provided with an air inlet valve 10 and a liquid inlet valve 9, and the liquid inlet valve 9 is arranged for adding quantitative sulfuric acid; the air inlet valve 10 is arranged to clean the incoming liquid in the liquid barrel 11 and blow the incoming liquid into the reaction kettle 2 by compressed air;
the stirring part comprises a motor 3 fixedly connected with the reaction kettle 2, a hollow stirring shaft 4 fixedly connected with the output end of the motor 3, a feeding device rotatably connected with the stirring shaft 4, and a first stirring pipe 7 and a second stirring pipe 21 which are arranged on the stirring shaft 4;
the feeding pipe 12 is communicated with the feeding device; the feeding device is communicated with the stirring shaft 4;
the first stirring pipes 7 and the second stirring pipes 21 arranged at the lower part of the feeding device are respectively provided with two groups, and a group of first stirring pipes 7, a group of second stirring pipes 21, the other group of first stirring pipes 7 and the other group of second stirring pipes 21 are sequentially arranged along the length direction of the stirring shaft 4; a first liquid outlet hole penetrating through the side wall of the first stirring pipe 7 is formed in the first stirring pipe 7, a second liquid outlet hole 22 penetrating through the side wall of the second stirring pipe 21 is formed in the second stirring pipe 21, and the stirring shaft 4 is respectively communicated with the first stirring pipe 7 and the second stirring pipe 21;
one end of the first stirring pipe 7, which is far away from the stirring shaft 4, is a closed end; the end of the second stirring pipe 21 far away from the stirring shaft 4 is a closed end.
As shown in fig. 5, the axial direction of the first liquid outlet hole is perpendicular to the axial direction of the second liquid outlet hole 22. The first liquid outlet hole and the second liquid outlet hole 22 are arranged vertically, so that the liquid is more uniformly distributed in the reaction kettle 2, the first liquid outlet hole discharges liquid along the axial direction of the stirring shaft 4, and the second liquid outlet hole 22 discharges liquid along the circumferential direction of the stirring shaft 4, so that the liquid is more uniformly distributed in the reaction kettle 2, and the reaction time can be shortened;
the feeding device comprises a feeding sleeve 6 rotationally connected with the stirring shaft 4, a first feeding hole 18 arranged on the stirring shaft 4, a feeding ring groove 19 arranged on the feeding sleeve 6, a second feeding hole 20 arranged on the feeding sleeve 6, outer clamping springs 15 arranged at two ends of the feeding sleeve 6 and sealing rings 16 arranged between the feeding sleeve 6 and the stirring shaft 4;
the first feeding hole 18 is respectively communicated with the stirring shaft 4 and the feeding ring groove 19;
the second feeding hole 20 is respectively communicated with the feeding pipe 12 and the feeding ring groove 16;
an upper plug 5 is arranged inside the stirring shaft 4, and the upper plug 5 is positioned at the upper part of the first feeding hole 18;
a lower plug 13 is arranged at the lower end part of the stirring shaft 4;
the upper plug 5 and the lower plug 13 enclose the hollow interior of the stirring shaft 4 into a closed material cavity, and the closed material cavity adds the material liquid into the reaction kettle 2 through the first liquid outlet hole and the second liquid outlet hole 21.
And a bearing 17 is arranged between the stirring shaft 4 and the feeding sleeve 6.
The utility model discloses a working process:
the device is well installed, a certain amount of feed liquid is added into the feed liquid barrel 11, the motor 3 is started, and the motor 3 drives the stirring shaft 4 to rotate; the stirring shaft 4 drives the first stirring pipe 7 and the second stirring pipe 21 to rotate, and the feed liquid and the raw materials are fully mixed and stirred;
opening a valve on the feeding pipe 12, wherein the feed liquid flows into a second feeding hole 20 along the feeding pipe 12, then flows into a feeding ring groove 19, then flows into the stirring shaft 4 through a first feeding hole 18, and finally is uniformly added into the reaction kettle 2 through a first liquid outlet hole of the first stirring pipe 7 and a second liquid outlet hole 22 on the second stirring pipe 21, so that the liquid is added from the interior of the raw material while stirring; tests show that the method for adding the feed liquid needs 4 hours originally and only needs 1.5 hours to complete the process, so that the production efficiency is improved, and the electric energy is saved; the reacted materials are taken out through a liquid outlet valve 14.
Example 2
This example is substantially the same as example 1;
the difference lies in, 7 blind ends of first stirred tube and 21 blind ends of second stirred tube all are equipped with out the liquid hole for when adding the feed liquid, more even.
The working principle of this embodiment is basically the same as that of embodiment 1, and thus the description is omitted.
Example 3
This embodiment is substantially the same as embodiment 1. The difference lies in that the sealing rings 16 are arranged on both sides of each bearing 17, and the arrangement is to prevent the feed liquid from flowing into the bearing and corroding lubricating grease in the bearing, so that the bearing 17 is damaged prematurely.
The working principle of this embodiment is basically the same as that of embodiment 1, and will not be described again.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. At present, the technical scheme of the application adopts the best implementation mode of the embodiment 1, and pilot test is carried out, namely small-scale experiment of products before large-scale mass production; after the pilot test is finished, the investigation for the use of the user is carried out in a small range, and the investigation result shows that the satisfaction degree of the user is higher; the preparation of the product for formal production for industrialization (including intellectual property risk early warning investigation) is already set out; the above; are merely preferred embodiments of the invention; the scope of the invention is not limited thereto; any person skilled in the art is within the technical scope of the present disclosure; the technical scheme and the improved concept of the invention are equally replaced or changed; are intended to be covered by the scope of the present invention.
The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (5)
1. A continuous denitration reactor for H acid is characterized by comprising a base (1), a reaction kettle (2) arranged on the base (1), a feed liquid barrel (11) arranged on the reaction kettle (2), a discharge valve (14) arranged at the bottom of the reaction kettle (2) and a stirring part arranged in the reaction kettle (2); the liquid barrel (11) is communicated with the stirring part through a feeding pipe (12); a valve is arranged on the feeding pipe (12);
the stirring part comprises a motor (3) fixedly connected with the reaction kettle (2), a hollow stirring shaft (4) fixedly connected with the output end of the motor (3), a feeding device rotatably connected with the stirring shaft (4), and a first stirring pipe (7) and a second stirring pipe (21) which are arranged on the stirring shaft (4);
the feeding pipe (12) is communicated with the feeding device; the feeding device is communicated with the stirring shaft (4);
the first stirring pipes (7) and the second stirring pipes (21) are arranged in two groups and are arranged at the lower part of the feeding device; a group of first stirring pipes (7), a group of second stirring pipes (21), the other group of first stirring pipes (7) and the other group of second stirring pipes (21) are sequentially arranged along the length direction of the stirring shaft (4); a first liquid outlet hole penetrating through the side wall of the first stirring pipe (7) is formed in the first stirring pipe (7), a second liquid outlet hole (22) penetrating through the side wall of the second stirring pipe (21) is formed in the second stirring pipe (21), and the stirring shaft (4) is respectively communicated with the first stirring pipe (7) and the second stirring pipe (21);
one end of the first stirring pipe (7) far away from the stirring shaft (4) is a closed end; one end of the second stirring pipe (21) far away from the stirring shaft (4) is a closed end.
2. The continuous denitration reactor for H acid according to claim 1, characterized in that: the axial direction of the first liquid outlet hole is vertical to the axial direction of the second liquid outlet hole (22).
3. The continuous denitration reactor for H acid according to claim 2, characterized in that: the feeding device comprises a feeding sleeve (6) rotatably connected with the stirring shaft (4), a first feeding hole (18) formed in the stirring shaft (4), a feeding ring groove (19) formed in the feeding sleeve (6), a second feeding hole (20) formed in the feeding sleeve (6), outer snap springs (15) arranged at two ends of the feeding sleeve (6) and sealing rings (16) arranged between the feeding sleeve (6) and the stirring shaft (4);
the first feeding hole (18) is respectively communicated with the stirring shaft (4) and the feeding ring groove (19);
the second feeding hole (20) is respectively communicated with the feeding pipe (12) and the feeding ring groove (19);
an upper plug (5) is arranged in the stirring shaft (4), and the upper plug (5) is positioned at the upper part of the first feeding hole (18);
a lower plug (13) is arranged at the lower end part of the stirring shaft (4);
the upper plug (5) and the lower plug (13) enclose the hollow interior of the stirring shaft (4) into a closed material cavity, and the closed material cavity adds material liquid into the reaction kettle (2) through the first liquid outlet hole and the second liquid outlet hole (22).
4. The continuous denitration reactor for H acid according to claim 3, characterized in that: a bearing (17) is arranged between the stirring shaft (4) and the feeding sleeve (6); and the sealing rings (16) are arranged on two sides of each bearing (17).
5. The continuous denitration reactor for H acid as set forth in claim 2, wherein: the closed end of the first stirring pipe (7) and the closed end of the second stirring pipe (21) are both provided with liquid outlet holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221324845.2U CN217341381U (en) | 2022-05-30 | 2022-05-30 | Continuous denitration reactor for H acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221324845.2U CN217341381U (en) | 2022-05-30 | 2022-05-30 | Continuous denitration reactor for H acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217341381U true CN217341381U (en) | 2022-09-02 |
Family
ID=83017028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221324845.2U Active CN217341381U (en) | 2022-05-30 | 2022-05-30 | Continuous denitration reactor for H acid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217341381U (en) |
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2022
- 2022-05-30 CN CN202221324845.2U patent/CN217341381U/en active Active
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