Formic acid production device

Abstract

The utility model relates to the technical field of formic acid production, and discloses a formic acid production device which comprises a reaction tank, a stirring assembly is arranged in the reaction tank, a sealing assembly is installed on the outer side of the stirring assembly, an electric heating bin is arranged on the outer side of the reaction tank, and a heat preservation bin is installed on the outer side of the electric heating bin. A heat preservation liquid inlet pipe is mounted on one side of the heat preservation bin, and a heat preservation liquid outlet pipe is arranged on the other side of the heat preservation bin; and the stirring assembly comprises a motor bin, a motor is arranged in the motor bin, and a vertical rod is installed at the output end of the motor. Through the stirring assembly, raw materials and a catalyst are fully reacted, the production efficiency is improved to a certain extent, the raw materials are fully and effectively utilized, resource waste is avoided, through the sealing assembly, the sealing performance of the reaction tank is improved, gas generated by the full reaction of the raw materials and the catalyst is prevented from overflowing, and the service life of the reaction tank is prolonged. And the safety and the production quality are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of formic acid production, in particular to a formic acid production device. Background Art

[0002] As an important organic chemical raw material, formic acid is widely used in medicine, pesticides, dyes, leather and other fields.

[0003] When producing formic acid, it is necessary to develop a formic acid production device, which plays an important role in improving formic acid production efficiency, product quality, reducing costs and reducing environmental pollution.

[0004] Chinese Patent Publication No.: CN217410740U discloses "A Formic Acid Production Device", which relates to the technical field of chemical production devices, including an enamel reactor, a dripping tank is connected to the top of the enamel reactor, a jacket is provided on the outer wall of the enamel reactor, a steam heating pipe is connected to the jacket, a distillation tower is connected to the top of the enamel reactor, a condenser is connected to the outlet of the distillation tower, and a formic acid receiving tank and a dilute acid receiving tank are connected in parallel at the outlet of the condenser through a liquid outlet pipe. This solves the problem that the device in the traditional technology uses sulfuric acid or hydrochloric acid in the process of formic acid production, resulting in high production costs; and the waste water generated needs to be refined, resulting in increased production costs and the existence of three wastes.

[0005] The above-mentioned prior art uses acetic acid as an acidulant and produces formic acid by acidifying sodium formate, which has two advantages. First, the by-product sodium formate produced by acidifying has a lower cost for the produced formic acid; second, acetic acid is used as an acidifying acid, and the obtained sodium acetate can be used as a raw material for wastewater treatment without further refining, which has a higher overall benefit and no concerns about the three wastes. The structure is simplified, which greatly simplifies the production process. However, during the use of the existing device, the raw materials cannot be fully reacted, which reduces the production efficiency to a certain extent. At the same time, part of the raw materials cannot be effectively utilized, which causes a waste of resources. Utility Model Content

[0006] The utility model aims to provide a formic acid production device to solve the problem that the raw materials cannot achieve sufficient reaction, which reduces the production efficiency to a certain extent, and part of the raw materials cannot be effectively utilized, which causes a waste of resources.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: a formic acid production device, comprising a reaction tank, a stirring assembly is arranged inside the reaction tank, a sealing assembly is installed on the outside of the stirring assembly, an electric heating bin is arranged on the outside of the reaction tank, a heat preservation bin is installed on the outside of the electric heating bin, a heat preservation liquid inlet pipe is installed on one side of the heat preservation bin, and a heat preservation liquid outlet pipe is arranged on the other side of the heat preservation bin;

[0008] The stirring assembly comprises a motor compartment, a motor is arranged inside the motor compartment, a vertical rod is installed at the output end of the motor, stirring rods are installed on both sides of the vertical rod, a scraper rod is installed at one end of the stirring rod, a mounting rod is installed inside the reaction tank, and a first bearing is installed at the lower end of the vertical rod;

[0009] The sealing assembly includes a sealing cover, a sealing gasket is arranged at the lower end of the sealing cover, a second bearing is installed on the outer side of the vertical rod, a mounting ring is installed on the outer side of the sealing cover, bolts are installed on one side of the mounting ring, and screw holes are opened at the top of the reaction tank at positions corresponding to the bolts.

[0010] Preferably, a connecting pipe is connected to one side of the reaction tank, a condenser is installed on one side of the connecting pipe, a collecting bin is provided at the lower end of the condenser, a mounting base is installed at the lower end of the reaction tank, an inlet is provided at the upper end of the reaction tank, and a discharge port is provided at the lower end of the reaction tank.

[0011] Preferably, the motor compartment is detachably arranged at the upper end of the reaction tank, the motor is detachably arranged in the motor compartment, and the vertical rod passes through the reaction tank and extends into the inner cavity of the reaction tank.

[0012] Preferably, the stirring rods are in multiple groups, and the multiple groups of stirring rods are symmetrically arranged at equal distances on both sides of the vertical rod, and the scraping rods are in contact with the inner wall of the reaction tank.

[0013] Preferably, the mounting rod is fixedly arranged in the reaction tank, and the first bearing is detachably arranged on the upper end of the mounting rod.

[0014] Preferably, the vertical rod passes through the sealing cover and extends to the outside thereof, and the sealing gasket is sleeved on the outside of the vertical rod.

[0015] Preferably, the mounting ring is fixedly arranged on one side of the sealing cover, the bolts penetrate the mounting ring and extend to the outside thereof, and the bolts match the screw holes.

[0016] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0017] First, the utility model provides a stirring component to enable the raw materials and the catalyst to fully react, thereby improving production efficiency to a certain extent, making full and effective use of the raw materials and avoiding waste of resources. By starting the motor, the motor drives the vertical rod to rotate, the rotation of the vertical rod drives the stirring rod to rotate, and the rotation of the stirring rod drives the scraper rod to rotate. While stirring the raw materials in the reaction tank to accelerate the catalytic reaction, the inner wall of the reaction tank is scraped to avoid the raw materials sticking to the inner wall, so that the raw materials and the catalyst can fully react.

[0018] Second, the utility model improves the sealing performance of the reaction tank by setting up a sealing component, avoids the overflow of gas generated by the full reaction of raw materials and catalysts, and ensures safety and production quality. A second bearing is installed on the outside of the vertical rod, a sealing gasket is arranged on the upper end of the second bearing, and the sealing gasket is pressed against the upper end of the second bearing by using a sealing cover, and a bolt is passed through the mounting ring and screwed into the screw hole, so that the sealing cover is tightly installed on the upper end of the reaction tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a cross-sectional view of the utility model;

[0021] Figure 3 For this utility model Figure 2 A magnified view of the structure at center A;

[0022] Figure 4 It is a structural schematic diagram of the vertical rod and the stirring rod of the utility model.

[0023] In the figure: 1. reaction tank; 2. stirring assembly; 201. motor compartment; 202. motor; 203. vertical rod; 204. stirring rod; 205. scraper rod; 206. mounting rod; 207. first bearing; 3. sealing assembly; 301. sealing cover; 302. sealing gasket; 303. second bearing; 304. mounting ring; 305. bolt; 306. screw hole; 4. electric heating compartment; 5. insulation compartment; 6. insulation liquid inlet pipe; 7. insulation liquid outlet pipe; 8. connecting pipe; 9. condenser; 10. collecting compartment; 11. mounting base; 12. inlet; 13. outlet. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-Figure 4A formic acid production device comprises a reaction tank 1, a stirring assembly 2 is arranged inside the reaction tank 1, a sealing assembly 3 is installed outside the stirring assembly 2, an electric heating bin 4 is arranged outside the reaction tank 1, a heat preservation bin 5 is installed outside the electric heating bin 4, a heat preservation liquid inlet pipe 6 is installed on one side of the heat preservation bin 5, and a heat preservation liquid outlet pipe 7 is arranged on the other side of the heat preservation bin 5; the stirring assembly 2 comprises a motor bin 201, a motor 202 is arranged inside the motor bin 201, a vertical rod 203 is installed on the output end of the motor 202, and stirring rods are installed on both sides of the vertical rod 203. A stirring rod 204, a scraper rod 205 is installed at one end of the stirring rod 204, a mounting rod 206 is installed inside the reaction tank 1, and a first bearing 207 is installed at the lower end of the vertical rod 203; the sealing assembly 3 includes a sealing cover 301, a sealing gasket 302 is provided at the lower end of the sealing cover 301, a second bearing 303 is installed on the outer side of the vertical rod 203, a mounting ring 304 is installed on the outer side of the sealing cover 301, a bolt 305 is installed on one side of the mounting ring 304, and a screw hole 306 is opened at the top of the reaction tank 1 at a position corresponding to the bolt 305.

[0026] Through the above technical scheme, the stirring component 2 is set, so that the raw materials and the catalyst react fully, the production efficiency is improved to a certain extent, the raw materials are fully and effectively utilized, and the waste of resources is avoided. By starting the motor 202, the motor 202 drives the vertical rod 203 to rotate, the rotation of the vertical rod 203 drives the stirring rod 204 to rotate, and the rotation of the stirring rod 204 drives the scraper rod 205 to rotate, while stirring the raw materials in the reaction tank 1 to accelerate the catalytic reaction, the inner wall of the reaction tank 1 is scraped to avoid the raw materials from adhering to the inner wall, so that the raw materials and the catalyst react fully. The sealing component 3 is set to improve the sealing performance of the reaction tank 1, avoid the overflow of the gas generated by the full reaction of the raw materials and the catalyst, and ensure safety and production quality. By installing the second bearing 303 on the outer side of the vertical rod 203, a sealing gasket 302 is set at the upper end of the second bearing 303, and the sealing gasket 302 is pressed against the upper end of the second bearing 303 by using the sealing cover 301, and the bolt 305 is passed through the mounting ring 304 and screwed into the screw hole 306, so that the sealing cover 301 is tightly installed on the upper end of the reaction tank 1.

[0027] Specifically, a connecting pipe 8 is connected to one side of the reaction tank 1, a condenser 9 is installed on one side of the connecting pipe 8, a collecting bin 10 is provided at the lower end of the condenser 9, a mounting base 11 is installed at the lower end of the reaction tank 1, an inlet 12 is provided at the upper end of the reaction tank 1, and a discharge port 13 is provided at the lower end of the reaction tank 1.

[0028] Through the above technical solution, the gas in the reaction tank 1 flows into the condenser 9 through the connecting pipe 8 for cooling or treatment. The collecting bin 10 is located below the condenser 9 and is used to collect the product treated by the condenser 9. The mounting base 11 plays a certain supporting role for the reaction tank 1. The raw material enters the reaction tank 1 from the feed port 12, and the reacted raw material is discharged from the discharge port 13.

[0029] Specifically, the motor compartment 201 is detachably arranged at the upper end of the reaction tank 1 , the motor 202 is detachably arranged in the motor compartment 201 , and the vertical rod 203 penetrates the reaction tank 1 and extends into the inner cavity of the reaction tank 1 .

[0030] Through the above technical solution, the motor compartment 201 is convenient for installing the motor 202 and plays a certain supporting role. The motor 202 is externally connected to a power supply and a controller to ensure the independent operation of each device. The motor 202 drives the vertical rod 203 to rotate.

[0031] Specifically, there are multiple groups of stirring rods 204 , which are symmetrically arranged at equal distances on both sides of the vertical rod 203 , and the scraping rods 205 are in contact with the inner wall of the reaction tank 1 .

[0032] Through the above technical solution, the vertical rod 203 is rotated, the rotation of the vertical rod 203 drives the stirring rod 204 to rotate, and the rotation of the stirring rod 204 drives the scraper rod 205 to rotate, so as to stir the raw materials in the reaction tank 1 to accelerate the catalytic reaction, and the scraper rod 205 scrapes the inner wall of the reaction tank 1 to prevent the raw materials from sticking to the inner wall.

[0033] Specifically, the mounting rod 206 is fixedly arranged in the reaction tank 1 , and the first bearing 207 is detachably arranged on the upper end of the mounting rod 206 .

[0034] Through the above technical solution, the mounting rod 206 supports one end of the vertical rod 203, ensuring the stability of the operation of the vertical rod 203, providing a stable support and fixing point, and helping to ensure the stability and reliability of other components and equipment inside the reaction tank.

[0035] Specifically, the vertical rod 203 passes through the sealing cover 301 and extends to the outside thereof, and the sealing gasket 302 is sleeved on the outside of the vertical rod 203 .

[0036] Through the above technical solution, gas can easily overflow from the point where the vertical rod 203 passes through, and the sealing cover 301 is pressed on the upper end of the sealing gasket 302 to improve the airtightness, thereby ensuring the safety and quality of production.

[0037] Specifically, the mounting ring 304 is fixedly arranged on one side of the sealing cover 301 , and the bolts 305 penetrate the mounting ring 304 and extend to the outside thereof, and the bolts 305 match the screw holes 306 .

[0038] Through the above technical solution, the mounting ring 304 serves as a part of the sealing cover 301, and its fixed setting ensures the stability and reliability of the sealing cover 301 in the specified position. The bolt 305 passes through the mounting ring 304 and extends to its outside, matching with the screw hole 306, thereby achieving the sealing cover 301 to be tightly installed on the upper end of the reaction tank 1 and the outside of the vertical rod 203, thereby improving the airtightness.

[0039] During use, when it is necessary to accelerate the reaction of the raw materials and the catalyst, the motor 202 is started, the motor 202 drives the vertical rod 203 to rotate, the rotation of the vertical rod 203 drives the stirring rod 204 to rotate, the rotation of the stirring rod 204 drives the scraper rod 205 to rotate, the stirring rod 204 rotates to stir the raw materials in the reaction tank 1 to accelerate the catalytic reaction, and the scraper rod 205 scrapes the inner wall of the reaction tank 1 to prevent the raw materials from sticking to the inner wall, so that the raw materials and the catalyst react fully. When it is necessary to improve the sealing performance of the reaction tank 1, a second bearing 303 is installed on the outer side of the vertical rod 203 passing through the reaction tank 1, a sealing gasket 302 is arranged on the upper end of the second bearing 303, the sealing gasket 302 is pressed against the upper end of the second bearing 303 by using the sealing cover 301, and the bolt 305 is screwed into the screw hole 306 through the mounting ring 304, so that the sealing cover 301 is tightly installed on the outer side of the vertical rod 203 to improve the sealing performance.

[0040] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit thereof, and the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A formic acid production device, comprising a reaction tank (1), characterized in that: The reaction tank (1) is provided with a stirring assembly (2) inside, a sealing assembly (3) is installed on the outside of the stirring assembly (2), an electric heating chamber (4) is provided on the outside of the reaction tank (1), a heat preservation chamber (5) is installed on the outside of the electric heating chamber (4), a heat preservation liquid inlet pipe (6) is installed on one side of the heat preservation chamber (5), and a heat preservation liquid outlet pipe (7) is provided on the other side of the heat preservation chamber (5); The stirring assembly (2) comprises a motor bin (201), a motor (202) is arranged inside the motor bin (201), a vertical rod (203) is installed at the output end of the motor (202), stirring rods (204) are installed on both sides of the vertical rod (203), a scraper rod (205) is installed at one end of the stirring rod (204), a mounting rod (206) is installed inside the reaction tank (1), and a first bearing (207) is installed at the lower end of the vertical rod (203); The sealing assembly (3) comprises a sealing cover (301), a sealing gasket (302) is arranged at the lower end of the sealing cover (301), a second bearing (303) is installed on the outer side of the vertical rod (203), a mounting ring (304) is installed on the outer side of the sealing cover (301), a bolt (305) is installed on one side of the mounting ring (304), and a screw hole (306) is opened at the top end of the reaction tank (1) at a position corresponding to the bolt (305).

2. A formic acid production device according to claim 1, characterized in that: One side of the reaction tank (1) is connected to a connecting pipe (8), one side of the connecting pipe (8) is installed with a condenser (9), a collecting bin (10) is provided at the lower end of the condenser (9), a mounting base (11) is installed at the lower end of the reaction tank (1), an inlet (12) is provided at the upper end of the reaction tank (1), and a discharge port (13) is provided at the lower end of the reaction tank (1).

3. A formic acid production device according to claim 1, characterized in that: The motor bin (201) is detachably arranged at the upper end of the reaction tank (1), the motor (202) is detachably arranged in the motor bin (201), and the vertical rod (203) penetrates the reaction tank (1) and extends into the inner cavity of the reaction tank (1).

4. A formic acid production device according to claim 1, characterized in that: The stirring rods (204) are multiple groups, and the multiple groups of stirring rods (204) are symmetrically arranged at equal distances on both sides of the vertical rod (203), and the scraping rod (205) is in contact with the inner wall of the reaction tank (1).

5. A formic acid production device according to claim 1, characterized in that: The mounting rod (206) is fixedly arranged in the reaction tank (1), and the first bearing (207) is detachably arranged on the upper end of the mounting rod (206).

6. A formic acid production device according to claim 1, characterized in that: The vertical rod (203) passes through the sealing cover (301) and extends to the outside thereof, and the sealing pad (302) is sleeved on the outside of the vertical rod (203).

7. A formic acid production device according to claim 1, characterized in that: The mounting ring (304) is fixedly arranged on one side of the sealing cover (301), the bolt (305) penetrates the mounting ring (304) and extends to the outside thereof, and the bolt (305) matches the screw hole (306).

Images