Methyl anthranilate production raw material storage equipment

Abstract

The utility model relates to methyl anthranilate production raw material storage equipment, which belongs to the technical field of storage equipment and comprises a storage tank, a stirring shaft, a stirring paddle, a stirring motor, a heat preservation jacket, a liquid inlet pipe, an exhaust pipe, a feeding port, a sealing cover, a discharging pipe, a gas distribution pipe and a nitrogen tank. The other end of the nitrogen conveying pipe extends into the storage tank, an outlet of the nitrogen conveying pipe faces the discharging pipe downwards, the nitrogen conveying pipe is connected with the gas distribution pipe through a pipeline, valves are arranged on the liquid inlet pipe, the exhaust pipe, the discharging pipe and the nitrogen conveying pipe, and a temperature measuring device is arranged in the storage tank. According to the utility model, temporary storage and mixing functions of anthranilic acid and methanol are integrated in one storage tank, so that the number of equipment and the occupied area are reduced, the production cost is reduced, two raw materials are respectively added through the sealed feeding hole and the liquid inlet pipe and are directly mixed in the storage tank, the volatilization and waste of the raw materials in the conveying process are avoided, and the production efficiency is improved. The raw material utilization rate is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of storage equipment, specifically relates to a methyl anthranilate production raw material storage equipment. BACKGROUND

[0002] In the esterification reaction of methyl anthranilate, o-aminobenzoic acid and methanol are the main reaction raw materials. At present, there are many problems in the temporary storage and mixing stage of the two raw materials. The traditional storage method is usually to store o-aminobenzoic acid and methanol in different storage tanks, and then transport them to the mixing equipment through pipelines for mixing when using. This method not only increases the equipment cost and land area, but also easily causes the volatilization and waste of raw materials during transportation and mixing, and has the problems of uneven mixing, low efficiency and the like. In addition, o-aminobenzoic acid is a solid powder, which is easy to caking during storage. SUMMARY

[0003] Therefore, it is necessary to provide a methyl anthranilate production raw material storage equipment aiming at the problems of the prior art.

[0004] To solve the problems of the prior art, the utility model adopts the technical scheme that:

[0005] A methyl anthranilate production raw material storage equipment, comprising a storage tank, a stirring shaft is arranged in the storage tank, the stirring shaft is connected with a stirring paddle and a stirring motor, a heat preservation jacket is fixedly arranged outside the storage tank, a liquid inlet pipe, an exhaust pipe and a feeding port are arranged at the top of the storage tank, a sealing cover is arranged at the feeding port, a discharge pipe is fixedly arranged at the bottom of the storage tank, an annular distribution gas pipe is fixedly arranged on the inner wall of the lower part of the storage tank, a plurality of blowing holes are uniformly arranged at the bottom of the distribution gas pipe and blow towards the inner wall of the bottom of the storage tank, a nitrogen tank is arranged beside the storage tank, a nitrogen gas conveying pipe is connected to the outlet of the nitrogen tank, the other end of the nitrogen gas conveying pipe extends into the storage tank and the outlet thereof faces downward and towards the discharge pipe, the nitrogen gas conveying pipe is connected to the distribution gas pipe through a pipeline, valves are arranged on the liquid inlet pipe, the exhaust pipe, the discharge pipe and the nitrogen gas conveying pipe, and a temperature measuring device is arranged in the storage tank.

[0006] As a preferred, the area formed by the top outer side of the distribution gas pipe and the inner wall of the storage tank is filled with a corrosion-resistant filler layer, which can prevent the accumulation of materials at this position. The top of the filler layer is inclined from high to low, which facilitates the discharge of materials at the top.

[0007] As a preferred, a metering pump is arranged on the discharge pipe, which facilitates metering and conveying.

[0008] As a kind of preferred, the lower outer wall of the heat preservation jacket is welded with annular fixed ring plate, the cross section of fixed ring plate is U-shaped, the bottom of fixed ring plate is fixed with multiple circular-arc-shaped fixed plates matched with the outer wall of heat preservation jacket, and the bottom of fixed plate is fixed with leg plate, which can more stably support heat preservation jacket and storage tank.

[0009] As a kind of preferred, the outer wall of fixed ring plate is evenly welded with multiple reinforcing rib plates, and the outer end bottom of reinforcing rib plate is welded with fixed plate, so that the supporting structure is more stable.

[0010] As a kind of preferred, the upper and lower sides of reinforcing rib plate are both provided with fixed clamping groove matched with the upper and lower outer walls of fixed ring plate, so that welding is more stable, and the position of reinforcing rib plate can be positioned.

[0011] As a kind of preferred, the front and rear sides of each reinforcing rib plate are both fixed with supporting rib plate, and the inner end of supporting rib plate is welded with fixed ring plate, so that the supporting structure is more stable.

[0012] As a kind of preferred, fixed ring plate is welded with two semicircle plates, the inner wall of semicircle plate is provided with positioning groove, and the outer wall of heat preservation jacket is provided with positioning convex column, so that the installation and positioning of fixed ring plate are facilitated.

[0013] As a kind of preferred, the outer wall of feeding port is evenly fixed with multiple mounting seat plates, the outer wall of sealing cover is evenly provided with multiple open grooves, the locking screw rotating in and out open groove is rotatably installed on each mounting seat plate, the locking screw is provided with pressing nut, and the bottom of sealing cover is fixed with sealing gasket matched with the top of feeding port, so that sealing cover can be quickly opened.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] The temporary storage and mixing functions of o-aminobenzoic acid and methanol are integrated in one storage tank, the number of equipment and floor area are reduced, the production cost is reduced, two kinds of raw materials are respectively added through sealing feeding port and liquid inlet pipe, and are directly mixed in storage tank, so that volatilization and waste of raw materials in conveying process are avoided, raw material utilization rate is improved, the stirring device arranged in storage tank can effectively promote the full mixing of solid o-aminobenzoic acid and liquid methanol, distribution gas pipe and nitrogen conveying pipe are arranged, nitrogen can be conveyed during storage, nitrogen sealing is carried out, material oxidation and volatilization are prevented, safety is improved, nitrogen conveying can blow the bottom of storage tank, material accumulation in the bottom is prevented, nitrogen can be introduced during discharging, the outlet pipe opening is prevented from being blocked, and material accumulation in the inner wall of the bottom of storage tank is prevented. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the structure schematic diagram of the utility model.

[0017] Figure 2 is Figure 1 part of the structure of Figure 1 ;

[0018] Figure 3 is Figure 1 part of the structure of Figure 2 ;

[0019] Figure 4 is Figure 1 enlarged structure diagram of A in

[0020] Reference signs in the drawings are:

[0021] 1, stirring motor; 2, stirring shaft; 3, liquid inlet pipe; 4, exhaust pipe; 5, sealing cover; 6, nitrogen conveying pipe; 7, heat preservation jacket; 8, storage tank; 9, nitrogen tank; 10, leg plate; 11, distribution gas pipe; 12, discharge pipe; 13, feeding port; 14, fixed ring plate; 15, metering pump; 16, fixed plate; 17, reinforcing rib plate; 18, stirring paddle; 19, locking screw; 20, packing layer; 21, fixed clamping groove; 22, supporting rib plate; 23, positioning convex column; 24, blowing hole; 25, compression nut. DETAILED DESCRIPTION

[0022] In order to further understand the characteristics, technical means and specific purposes and functions achieved by the utility model, the utility model will be described in further detail below in combination with the drawings and specific embodiments.

[0023] Embodiment one, with reference to Figures 1 to 4 A kind of o-aminobenzoic acid methyl ester production raw material storage equipment, including storage tank 8, stirring shaft 2 is arranged in storage tank 8, stirring shaft 2 is connected with stirring paddle 18 and stirring motor 1, heat preservation jacket 7 is fixedly arranged on the outside of storage tank 8, the top of storage tank 8 is equipped with liquid inlet pipe 3, exhaust pipe 4 and feeding port 13, sealing cover 5 is arranged at feeding port 13, discharge pipe 12 is fixed at the bottom of storage tank 8, annular distribution gas pipe 11 is fixed on the inner wall of lower portion of storage tank 8, and blowing hole 24 that blows towards the inner wall of bottom of storage tank 8 is uniformly arranged at the bottom of distribution gas pipe 11, nitrogen tank 9 is arranged beside storage tank 8, nitrogen conveying pipe 6 is connected to the outlet of nitrogen tank 9, another end of nitrogen conveying pipe 6 extends into storage tank 8 and outlet is downward towards discharge pipe 12, nitrogen conveying pipe 6 is connected to distribution gas pipe 11 by pipeline, valve is arranged on liquid inlet pipe 3, exhaust pipe 4, discharge pipe 12 and nitrogen conveying pipe 6, temperature measuring device is arranged in storage tank 8.Temperature measuring device is digital thermometer.

[0024] In operation, the stirring motor 1 is started, the sealing cover 5 is opened, the o-anthranilic acid solid material is put into through the feeding port 13, the methanol is added through the liquid inlet pipe 3, after the feeding is completed, the sealing cover 5 and the liquid inlet pipe 3 are closed, the nitrogen conveying pipe 6 is opened, the exhaust pipe 4 is opened, nitrogen is conveyed into the nitrogen conveying pipe 6, then is sprayed out from the other end of the nitrogen conveying pipe 6 and the spraying hole 24, the bottom wall of the storage tank 8 is purged, and the nitrogen accelerates the mixing of the material in the rising process, after the nitrogen is discharged from the upper part of the liquid, the air in the storage tank 8 is squeezed out, after a period of time, the nitrogen conveying pipe 6 and the exhaust pipe 4 are closed, and the storage tank 8 is nitrogen sealed. After the mixing is completed, according to the production requirement, the discharge pipe 12 is opened, then the nitrogen conveying pipe 6 and the exhaust pipe 4 are opened, auxiliary purging is carried out, and the mixed raw material is conveyed to the next production link.

[0025] In example two, on the basis of example one, the area formed by the top outer side of the distribution gas pipe 11 and the inner wall of the storage tank 8 is filled with a corrosion-resistant filler layer 20, the top of the filler layer 20 is inclined from high to low, and the corrosion-resistant filler layer 20 can be polytetrafluoroethylene material.

[0026] A metering pump 15 is arranged on the discharge pipe 12. During storage, the heat preservation jacket 7 can be filled with heat preservation liquid, which enters from the bottom inlet and is discharged from the top outlet, so that the temperature in the storage tank 8 can be maintained at 10-25 degrees Celsius. The temperature measuring device can also be a temperature sensor, which is connected to a controller, and the controller is connected to an electric valve for controlling the liquid flow of the heat preservation jacket 7 inlet, so that the temperature can be automatically controlled.

[0027] The lower outer wall of the heat preservation jacket 7 is welded and fixed with an annular fixed ring plate 14, the cross section of the fixed ring plate 14 is U-shaped, the bottom of the fixed ring plate 14 is fixed with a plurality of circular-arc-shaped fixed plates 16 matched with the outer wall of the heat preservation jacket 7, and the bottom of the fixed plate 16 is fixed with a leg plate 10.

[0028] A plurality of reinforcing rib plates 17 are uniformly welded and fixed on the outer wall of the fixed ring plate 14, and the outer end bottom of the reinforcing rib plate 17 is welded and fixed with the fixed plate 16.

[0029] The upper and lower sides of the reinforcing rib plate 17 are each provided with a fixed clamping groove 21 matched with the upper and lower outer walls of the fixed ring plate 14.

[0030] The front and rear sides of each reinforcing rib plate 17 are fixed with a support rib plate 22, and the inner end of the support rib plate 22 is welded and fixed with the fixed ring plate 14.

[0031] The fixed ring plate 14 is welded by two half circle plates, the inner side wall of the half circle plate is provided with a positioning groove, and the outer side wall of the heat preservation jacket 7 is provided with a positioning convex column 23. During installation, the half circle plate is wrapped on the outer wall of the heat preservation jacket 7, the positioning convex column 23 is inserted into the positioning groove, then the half circle plate is welded, then a plurality of fixed plates 16 are welded on the bottom of the fixed ring plate 14, the inner wall of the fixed plate 16 is welded on the outer side wall of the heat preservation jacket 7, then the inner end of the reinforcing rib plate 17 is inserted into the U-shaped groove of the fixed ring plate 14, the upper and lower outer side walls of the fixed ring plate 14 are limited in the fixed clamping groove 21, then the reinforcing rib plate 17 is welded, the support leg plate 10 is welded on the bottom of the fixed plate 16, and the inner side upper portion of the support leg plate 10 is welded on the outer side wall of the heat preservation jacket 7.

[0032] A plurality of mounting seat plates are uniformly arranged on the outer side wall of the feeding port 13, a plurality of opening grooves are uniformly arranged on the outer side wall of the sealing cover 5, a locking screw 19 is rotatably arranged on each mounting seat plate, the locking screw 19 is arranged to rotate in and out of the opening groove, the locking screw 19 is provided with a pressing nut 25, and the bottom of the sealing cover 5 is fixed with a sealing gasket matched with the top of the feeding port 13. When the sealing cover 5 is opened, the pressing nut 25 is loosened, then the locking screw 19 is rotated outward, so that the locking screw 19 is rotated out of the opening groove, and the sealing cover 5 can be removed.

[0033] The above embodiment only expresses one or several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as the limitation of the patent scope of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application. Therefore, the protection scope of the present application patent should be subject to the appended claims.

Claims

1. A raw material storage device for the production of methyl anthranilate, comprising a storage tank (8), characterized in that: The storage tank (8) is equipped with a stirring shaft (2), which is connected to a stirring paddle (18) and a stirring motor (1). The storage tank (8) is fixedly equipped with a heat insulation jacket (7). The top of the storage tank (8) is equipped with an inlet pipe (3), an exhaust pipe (4), and a feeding port (13). A sealing cap (5) is provided at the feeding port (13). The bottom of the storage tank (8) is fixed with a discharge pipe (12). The lower inner wall of the storage tank (8) is fixed with an annular distribution air pipe (11). The bottom of the distribution air pipe (11) is... The storage tank (8) is provided with blow holes (24) that blow towards the inner wall of the bottom. A nitrogen tank (9) is provided next to the storage tank (8). The outlet of the nitrogen tank (9) is connected to a nitrogen delivery pipe (6). The other end of the nitrogen delivery pipe (6) extends into the storage tank (8) and the outlet faces downward toward the discharge pipe (12). The nitrogen delivery pipe (6) is connected to the distribution pipe (11) through a pipe. Valves are provided on the liquid inlet pipe (3), the exhaust pipe (4), the discharge pipe (12) and the nitrogen delivery pipe (6). A temperature measuring device is provided inside the storage tank (8).

2. The raw material storage equipment for the production of methyl anthranilate according to claim 1, characterized in that, The area formed by the top outer side of the distribution duct (11) and the inner wall of the storage tank (8) is filled with a corrosion-resistant packing layer (20), and the top of the packing layer (20) is inclined with the outside higher than the inside.

3. A raw material storage device for the production of methyl anthranilate according to claim 1 or 2, characterized in that, A metering pump (15) is installed on the discharge pipe (12).

4. The raw material storage equipment for the production of methyl anthranilate according to claim 1, characterized in that, A ring-shaped fixing plate (14) is welded and fixed on the lower outer wall of the insulation jacket (7). The cross-section of the fixing plate (14) is U-shaped. Multiple arc-shaped fixing plates (16) that cooperate with the outer wall of the insulation jacket (7) are fixed at the bottom of the fixing plate (14). A support plate (10) is fixed at the bottom of the fixing plate (16).

5. The raw material storage device for the production of methyl anthranilate according to claim 4, characterized in that, Multiple reinforcing ribs (17) are evenly distributed and welded to the outer wall of the fixing ring plate (14), and the bottom of the outer end of the reinforcing ribs (17) is welded to the fixing plate (16).

6. The raw material storage device for the production of methyl anthranilate according to claim 4, characterized in that, The upper and lower sides of the reinforcing rib (17) are provided with fixing grooves (21) that cooperate with the upper and lower outer walls of the fixing ring plate (14).

7. The raw material storage device for the production of methyl anthranilate according to claim 5, characterized in that, Each reinforcing rib (17) is fixed with a supporting rib (22) on its front and rear sides, and the inner end of the supporting rib (22) is welded and fixed to the fixing ring plate (14).

8. The raw material storage device for the production of methyl anthranilate according to claim 5, characterized in that, The fixing ring plate (14) is made of two semi-circular plates welded together. The inner sidewall of the semi-circular plates is provided with positioning grooves, and the outer sidewall of the insulation jacket (7) is provided with positioning protrusions (23).

9. The raw material storage equipment for the production of methyl anthranilate according to claim 1, characterized in that, Multiple mounting plates are evenly fixed on the outer side wall of the feeding port (13), and multiple opening slots are evenly provided on the outer side wall of the sealing cover (5). Each mounting plate is rotatably mounted with a locking screw (19) that rotates in and out of the opening slot. A clamping nut (25) is provided on the locking screw (19), and a sealing gasket that matches the top of the feeding port (13) is fixed at the bottom of the sealing cover (5).

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