CN211133848U - Feeding device is used in malonic acid preparation - Google Patents
Feeding device is used in malonic acid preparation Download PDFInfo
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- CN211133848U CN211133848U CN201920997744.3U CN201920997744U CN211133848U CN 211133848 U CN211133848 U CN 211133848U CN 201920997744 U CN201920997744 U CN 201920997744U CN 211133848 U CN211133848 U CN 211133848U
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- malonic acid
- raw material
- supporting
- acid reactor
- liquid inlet
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Abstract
The utility model discloses a feeding device is used in malonic acid preparation, the on-line screen storage device comprises a base, the fixed malonic acid reactor that is provided with on the base, the fixed reinforced mechanism that is provided with in malonic acid reactor's upper surface left side, just be located on the base malonic acid reactor front end is fixed to be provided with first raw materials mechanism and second raw materials mechanism, malonic acid reactor with fixed being equipped with supporting mechanism between the reinforced mechanism, electronic interpolation raw materials labour saving and time saving mixes liquid with sulphuric acid and pure water and mixes in advance, improves the mixing efficiency of raw materials, and is rational in infrastructure, strengthens the practicality.
Description
Technical Field
The utility model relates to a chemical production technical field, specific field is a feeding device is used in malonic acid preparation.
Background
Malonic acid molecular formula HOOCCH2COOH. The scale is calcium malonate in beet root, and is deposited in the concentration tank for preparing sugar from beet. Malonic acid is colorless flaky crystal; melting point 135.6 deg.C, decomposition at 140 deg.C, density 1.619 g/cm 3(16 deg.C); is soluble in water, alcohol and ether. Can be dissolved in acetone and pyridine.
The malonic acid is prepared by a method of hydrolyzing cyanoacetic acid or diethyl malonate, and can also be prepared by taking acetic acid as a raw material. Reacting acetic acid with chlorine to obtain chloroacetic acid, treating with sodium carbonate to generate sodium salt, and performing nucleophilic substitution reaction with sodium cyanide to obtain cyanoacetic acid. And (3) hydrolyzing the sodium hydroxide solution, converting the cyano into carboxylate ions, and then acidifying to obtain the malonic acid.
The traditional method for producing malonic acid in China mostly adopts malonate hydrolysis preparation, diethyl malonate, sulfuric acid and pure water are hydrolyzed for 5 hours at a constant temperature of 80-90 ℃, however, in the existing production and processing process of malonic acid, raw materials are directly introduced into a reactor, so that the mixing degree of the raw materials is low, and the reaction rate is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a feeding device is used in malonic acid preparation to solve the problem that provides among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a feeding device for preparing malonic acid comprises a base, wherein a malonic acid reactor is fixedly arranged on the base, a feeding mechanism is fixedly arranged on the left side of the upper surface of the malonic acid reactor, and a supporting mechanism is fixedly assembled between the malonic acid reactor and the feeding mechanism;
the feeding mechanism comprises a feeding hole, the feeding hole is communicated with the malonic acid reactor, a mixing main shell is fixedly arranged on the upper surface of the feeding hole, a sealing upper cover is arranged on the mixing main shell, a lock is arranged between the mixing main shell and the sealing upper cover, and a first raw material mechanism and a second raw material mechanism are fixedly arranged on the base and positioned at the front end of the malonic acid reactor;
the first raw material mechanism comprises a raw material box body, the upper surface of the raw material box body is provided with a pump body through a bolt, the liquid inlet end of the pump body is communicated with the liquid outlet end of a first liquid inlet pipe, the liquid inlet end of the first liquid inlet pipe is communicated with the bottom end of the side wall of the raw material box body, the liquid outlet end of the pump body is communicated with the liquid inlet end of a second liquid inlet pipe, the liquid outlet end of the second liquid inlet pipe extends into the main mixing shell and is provided with a spray head, a liquid inlet pipe is arranged on the raw material box body, a funnel-shaped guide plate is fixedly arranged on the inner side wall of the mixing main shell, a horizontal guide plate is fixedly arranged at the bottom end of the funnel-shaped guide plate, through holes are uniformly arranged on the funnel-shaped guide plate and the horizontal guide plate respectively, the first raw material mechanism and the second raw material mechanism are identical in structure, and a spray head of the first raw material mechanism and a spray head of the second raw material mechanism are arranged oppositely;
the supporting mechanism includes lower support ring, lower support ring with malonic acid reactor fixed connection, the upper surface symmetry of lower support ring be provided with the one end of four bracing pieces, four the other end of bracing piece all with last bracing ring fixed connection, go up the bracing ring with compounding main casing body fixed connection, lower support ring with go up the symmetry between the bracing ring and be provided with supporting spring, the supporting spring cover is located on the bracing piece.
Preferably, the base comprises a supporting bottom plate, the middle part of the upper surface of the supporting bottom plate is fixedly connected with the malonic acid reactor through a supporting block, and the left side and the right side of the upper surface of the supporting bottom plate are fixedly connected with the malonic acid reactor through supporting columns.
Preferably, a manhole is fixedly arranged on the right side of the upper surface of the malonic acid reactor, and a discharge hole is fixedly arranged at the bottom of the side wall of the malonic acid reactor.
Preferably, the structure of the feed inlet is in a circular truncated cone shape.
Preferably, the upper surface of the mixing main shell is provided with a sealing ring.
Preferably, an electric cabinet is fixedly arranged on the right side of the upper surface of the supporting bottom plate, and the electric cabinet is electrically connected with the malonic acid reactor and the pump body.
Compared with the prior art, the beneficial effects of the utility model are that: through base, malonic acid reactor, reinforced mechanism and supporting mechanism constitute the utility model discloses a major structure, wherein the base plays to support fixed action to the malonic acid reactor, is used for malonic acid diethyl ester, sulphuric acid and pure water to take place hydrolysis through the malonic acid reactor, supports fixedly through the supporting mechanism to the compounding main casing body, through reinforced mechanism with the leading in compounding main casing body that malonic acid diethyl ester and sulphuric acid and pure water mixed the liquid to at the internal collision of compounding main casing, improve mixing efficiency.
The utility model provides a feeding device is used in malonic acid preparation, electronic interpolation raw materials labour saving and time saving mixes liquid with sulphuric acid and pure water to malonic acid diethyl ester and mixes in advance, improves the mixing efficiency of raw materials for reaction rate, rational in infrastructure, improvement practicality.
Drawings
Fig. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a schematic view of a portion A of FIG. 1;
fig. 3 is a schematic view of the main internal structure of the mixing main housing of the present invention;
fig. 4 is a schematic view of the top view structure of the funnel-shaped guide plate and the horizontal guide plate of the present invention.
In the figure: the device comprises a 1-malonic acid reactor, a 2-feeding hole, a 3-mixing main shell, a 4-closed upper cover, a 5-lock, a 6-raw material box body, a 7-pump body, a 8-first liquid inlet pipe, a 9-second liquid inlet pipe, a 10-spray head, a 11-liquid inlet pipe, a 12-funnel-shaped guide plate, a 13-horizontal guide plate, a 14-lower support ring, a 15-support rod, a 16-upper support ring, a 17-support spring, a 18-support bottom plate, a 19-support ring, a 20-manhole, a 21-discharging hole and a 22-electric cabinet.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: a feeding device for preparing malonic acid comprises a base, wherein a malonic acid reactor 1 is fixedly arranged on the base, a feeding mechanism is fixedly arranged on the left side of the upper surface of the malonic acid reactor, a supporting mechanism is fixedly assembled between the malonic acid reactor and the feeding mechanism, and the feeding device comprises the main structure of the utility model through the base, the malonic acid reactor, the feeding mechanism and the supporting mechanism, wherein the base plays a role in supporting and fixing the malonic acid reactor, and is used for hydrolysis reaction of diethyl malonate, sulfuric acid and pure water through the malonic acid reactor;
the feeding mechanism comprises a feeding hole 2, the feeding hole is communicated with the malonic acid reactor, a mixing main shell 3 is fixedly arranged on the upper surface of the feeding hole, a sealing upper cover 4 is arranged on the mixing main shell, a lock 5 is arranged between the mixing main shell and the sealing upper cover, and a first raw material mechanism and a second raw material mechanism are fixedly arranged on the base and positioned at the front end of the malonic acid reactor;
the first raw material mechanism comprises a raw material box body 6, the upper surface of the raw material box body is provided with a pump body 7 through a bolt, the liquid inlet end of the pump body is communicated with the liquid outlet end of a first liquid inlet pipe 8, the liquid inlet end of the first liquid inlet pipe is communicated with the bottom end of the side wall of the raw material box body, the liquid outlet end of the pump body is communicated with the liquid inlet end of a second liquid inlet pipe 9, the liquid outlet end of the second liquid inlet pipe extends into the main mixing shell and is provided with a spray head 10, a liquid inlet pipe 11 is arranged on the raw material box body, a funnel-shaped guide plate 12 is fixedly arranged on the inner side wall of the main mixing shell, a horizontal guide plate 13 is fixedly arranged at the bottom end of the funnel-shaped guide plate, through holes are uniformly arranged on the funnel-shaped guide plate and the horizontal guide plate respectively, the first raw material mechanism and the second raw material mechanism are identical in structure, and a spray head of the first raw material mechanism and a spray head of the second raw material mechanism are arranged oppositely; the diethyl malonate, the sulfuric acid and the pure water mixed solution are introduced into the mixing main shell through the feeding mechanism and collide in the mixing main shell, so that the mixing efficiency is improved;
the supporting mechanism includes lower support ring 14, lower support ring with malonic acid reactor fixed connection, the upper surface symmetry of lower support ring be provided with four 15's of bracing piece one end, four the other end of bracing piece all with last supporting ring 16 fixed connection, go up the supporting ring with compounding main casing body fixed connection, lower support ring with go up the symmetry between the supporting ring and be provided with supporting spring 17, the supporting spring cover is located on the bracing piece, support fixedly through the supporting mechanism to compounding main casing body, wherein improve the bearing capacity of bracing piece through supporting spring to the bracing piece.
Specifically, the base comprises a supporting bottom plate 18, the middle part of the upper surface of the supporting bottom plate is fixedly connected with the malonic acid reactor through a supporting block, and the left side and the right side of the upper surface of the supporting bottom plate are fixedly connected with the malonic acid reactor through supporting columns 19.
Specifically, a manhole 20 is fixedly arranged on the right side of the upper surface of the malonic acid reactor, and is convenient for workers to enter for overhauling, and a discharge hole 21 is fixedly arranged at the bottom of the side wall of the malonic acid reactor.
Particularly, the feed inlet structure is in a round table shape.
Specifically, the upper surface of the mixing main shell is provided with a sealing ring.
Specifically, an electric cabinet 22 is fixedly arranged on the right side of the upper surface of the supporting bottom plate, and the electric cabinet 22 is electrically connected with the malonic acid reactor and the pump body.
The working principle is as follows: the utility model provides a feeding device for preparing malonic acid, firstly, raw material diethyl malonate is injected into a raw material box of a first raw material mechanism, mixed solution of sulfuric acid and pure water is injected into a raw material box of a second raw material mechanism, two pump bodies are controlled to be in a working state through an electric cabinet, wherein the first feed liquor pipe of second feed liquor pipe and shower nozzle entering compounding owner casing of second feed liquor pipe along being located left first raw materials mechanism, sulphuric acid and pure water mixed liquid are along being located the first feed liquor pipe of the second raw materials mechanism on right side, second feed liquor pipe and shower nozzle entering compounding owner casing, the shower nozzle of first raw materials mechanism and the shower nozzle subtend blowout liquid of second raw materials mechanism, spun liquid drop fuses each other and improves original mixed degree, the raw materials of mixture is along funnel-shaped guide plate, the through-hole whereabouts of horizontal guide plate is hydrolysised in the feed inlet entering malonic acid reactor.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the description with the record of drawing of description, and the concrete connected mode of each part all adopts conventional means such as ripe bolt, rivet, welding among the prior art, and machinery, part and equipment all adopt among the prior art, and conventional model, including the conventional connected mode among the circuit connection adoption prior art, and the details are not repeated here, and the content that does not make detailed description in this description belongs to the prior art that skilled person in the art knows.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a feeding device is used in malonic acid preparation, includes the base, its characterized in that: a malonic acid reactor (1) is fixedly arranged on the base, a feeding mechanism is fixedly arranged on the left side of the upper surface of the malonic acid reactor (1), and a supporting mechanism is fixedly assembled between the malonic acid reactor (1) and the feeding mechanism;
the feeding mechanism comprises a feeding hole (2), the feeding hole (2) is communicated with the malonic acid reactor (1), a mixing main shell (3) is fixedly arranged on the upper surface of the feeding hole (2), a closed upper cover (4) is arranged on the mixing main shell (3), a lock (5) is arranged between the mixing main shell (3) and the closed upper cover (4), and a first raw material mechanism and a second raw material mechanism are fixedly arranged on the base and positioned at the front end of the malonic acid reactor (1);
the first raw material mechanism comprises a raw material box body (6), the upper surface of the raw material box body (6) is provided with a pump body (7) through a bolt, the liquid inlet end of the pump body (7) is communicated with the liquid outlet end of a first liquid inlet pipe (8), the liquid inlet end of the first liquid inlet pipe (8) is communicated with the bottom end of the side wall of the raw material box body (6), the liquid outlet end of the pump body (7) is communicated with the liquid inlet end of a second liquid inlet pipe (9), the liquid outlet end of the second liquid inlet pipe (9) extends into the mixing main shell (3) and is provided with a spray head (10), the raw material box body (6) is provided with a liquid inlet pipe (11), the inner side wall of the mixing main shell (3) is fixedly provided with a funnel-shaped guide plate (12), the bottom end of the funnel-shaped guide plate (12) is fixedly provided with a horizontal guide plate (13), the funnel-shaped guide, the first raw material mechanism and the second raw material mechanism are identical in structure, and a spray head of the first raw material mechanism and a spray head of the second raw material mechanism are arranged oppositely;
the supporting mechanism includes lower support ring (14), lower support ring (14) with malonic acid reactor (1) fixed connection, the upper surface symmetry of lower support ring (14) be provided with the one end of four bracing pieces (15), four the other end of bracing piece (15) all with last bracing ring (16) fixed connection, go up bracing ring (16) with compounding main casing body (3) fixed connection, lower support ring (14) with the symmetry is provided with supporting spring (17) between last bracing ring (16), supporting spring (17) cover is located on bracing piece (15).
2. The feeding device for malonic acid preparation according to claim 1, characterized in that: the base comprises a supporting bottom plate (18), the middle of the upper surface of the supporting bottom plate (18) is fixedly connected with the malonic acid reactor (1) through a supporting block, and the left side and the right side of the upper surface of the supporting bottom plate (18) are fixedly connected with the malonic acid reactor (1) through supporting columns (19).
3. The feeding device for malonic acid preparation according to claim 1, characterized in that: a manhole (20) is fixedly arranged on the right side of the upper surface of the malonic acid reactor (1), and a discharge hole (21) is fixedly arranged at the bottom of the side wall of the malonic acid reactor (1).
4. The feeding device for malonic acid preparation according to claim 1, characterized in that: the structure of the feed inlet (2) is in a round table shape.
5. The feeding device for malonic acid preparation according to claim 1, characterized in that: and a sealing ring is arranged on the upper surface of the mixing main shell (3).
6. The feeding device for malonic acid preparation as claimed in claim 2, wherein: an electric cabinet (22) is fixedly arranged on the right side of the upper surface of the supporting base plate (18), and the electric cabinet (22) is electrically connected with the malonic acid reactor (1) and the pump body (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920997744.3U CN211133848U (en) | 2019-06-29 | 2019-06-29 | Feeding device is used in malonic acid preparation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920997744.3U CN211133848U (en) | 2019-06-29 | 2019-06-29 | Feeding device is used in malonic acid preparation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211133848U true CN211133848U (en) | 2020-07-31 |
Family
ID=71742837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920997744.3U Expired - Fee Related CN211133848U (en) | 2019-06-29 | 2019-06-29 | Feeding device is used in malonic acid preparation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211133848U (en) |
-
2019
- 2019-06-29 CN CN201920997744.3U patent/CN211133848U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20200731 |