Constant-temperature extraction tank for producing natural calcium propionate

Abstract

The utility model discloses a constant-temperature extraction tank for producing natural calcium propionate, which comprises an extraction tank for extracting calcium propionate, a heat preservation shell for preserving heat of the extraction tank, a stirring shaft for promoting the reaction rate, a driving device for driving the stirring shaft to rotate, a coil pipe for preserving heat of propionic acid mixed liquor, and a water spraying device for preventing calcium propionate from sinking to the bottom, the heat preservation shell is vertically connected to the outer side of the extraction tank, the two stirring shafts are vertically connected to a top plate in the extraction tank, the driving device is fixed to the upper portion of the top plate of the extraction tank and fixedly connected with the stirring shafts, and the coil pipe is arranged in the extraction tank and vertically connected to the inner wall of the extraction tank. The water spraying device is located in the extraction tank and fixedly connected to the bottom plate of the extraction tank, and the phenomenon that calcium propionate sinks and accumulates on the bottom plate of the extraction tank and blocks the discharge port of the extraction tank in a calcium propionate precipitation state is avoided.

Description

Technical Field

[0001] The utility model relates to the field of chemical production equipment, in particular to a constant temperature extraction tank for natural calcium propionate production. Background Art

[0002] Calcium propionate is produced by storing a mixture of propionic acid and water in a storage tank with a mechanical stirring shaft, adding calcium hydroxide for neutralization reaction and then fermenting. During production, it is required to maintain 80°C for 2 hours after adding calcium hydroxide. Because the storage tank has no jacket, hot water or steam cannot be passed in for insulation, resulting in a low reaction rate between propionic acid and calcium hydroxide, incomplete reaction of propionic acid, and low product yield.

[0003] Chinese patent publication number CN 219836430 U discloses a mixing device for calcium propionate production, comprising: a mixing tank body, a surrounding mechanism is arranged inside the mixing tank body, a matching mechanism is arranged inside the mixing tank body, the surrounding mechanism includes a circular disc fixedly mounted on the inner wall of the mixing tank body, a motor is fixedly mounted on the inner top wall of the mixing tank body, the output shaft of the motor is fixedly connected to a connecting shaft through a coupling, a ring sleeve is movably mounted on the outer surface of the connecting shaft, a shaft sleeve is rotatably mounted between the inner surface of the ring sleeve and the outer surface of the connecting shaft, a vertical rod is fixedly mounted on the bottom of the ring sleeve, and a propeller is fixedly mounted on the bottom of the vertical rod.

[0004] However, when the above device is used in actual production, it cannot meet the requirement of maintaining the temperature at 80°C for 2 hours after adding calcium hydroxide during the production of calcium propionate, and during production, the calcium propionate precipitated from the propionic acid mixture will sink and accumulate on the bottom plate of the extraction tank and block the discharge port of the extraction tank. Utility Model Content

[0005] The utility model aims to overcome the shortcomings of the above-mentioned prior art that calcium propionate cannot meet the requirement of maintaining 80°C for 2 hours after adding calcium hydroxide during production, and calcium propionate will sink and accumulate on the bottom plate of the extraction tank and block the discharge port of the extraction tank. A constant temperature extraction tank for natural calcium propionate production is proposed, including an extraction tank for extracting calcium propionate, an insulation shell for heat-insulating the extraction tank, a stirring shaft for promoting the reaction rate, a driving device for driving the stirring shaft to rotate, a coil for heat-insulating the propionic acid mixture, and a water spraying device for preventing calcium propionate from sinking to the bottom, wherein the insulation shell is vertically connected to the outside of the extraction tank, two stirring shafts are vertically connected to the top plate inside the extraction tank, the driving device is fixed above the top plate of the extraction tank, and the driving device and the stirring shaft are fixedly connected, the coil is arranged inside the extraction tank and vertically connected to the inner wall of the extraction tank, and the water spraying device is located inside the extraction tank and fixedly connected to the bottom plate of the extraction tank.

[0006] In the technical scheme of the utility model, after calcium hydroxide is placed in the propionic acid mixture inside the extraction tank, the propionic acid mixture is heated to 80 degrees, and then the steam generator passes high-temperature steam into the interior of the extraction tank through the coil. After entering the extraction tank, the high-temperature steam transfers its own heat to the propionic acid mixture inside the extraction tank, and keeps the propionic acid mixture inside the extraction tank warm. Then, the steam is discharged through the air outlet of the coil until the reaction of the propionic acid mixture inside the extraction tank is completed. The temperature of the propionic acid mixture in the extraction tank will be maintained at 80 degrees, so as to solve the disadvantage mentioned in the technical background that the requirement of maintaining 80°C for 2 hours after adding calcium hydroxide when calcium propionate is not met during production.

[0007] The stirring shaft stops working after the calcium hydroxide and propionic acid mixture are evenly stirred, and then calcium propionate begins to precipitate from the propionic acid mixture. When calcium propionate begins to precipitate, the display starts the self-priming pump, and the self-priming pump extracts the propionic acid mixture containing calcium propionate, and then transports it to the water spray seat through a pipeline for spraying, and the propionic acid mixture is formed into a tumbling state inside the extraction tank to avoid the situation in which calcium propionate sinks and accumulates on the bottom plate of the extraction tank after precipitation when the propionic acid mixture is in a static state, thereby blocking the discharge port of the extraction tank, so as to solve the disadvantage that calcium propionate sinks and accumulates on the bottom plate of the extraction tank and blocks the discharge port of the extraction tank mentioned in the technical background.

[0008] Preferably, a pH detector and a temperature sensor are provided on the inner wall of the extraction tank, and both the pH detector and the temperature sensor are electrically connected to a display. The pH detector will reflect the pH value of the propionic acid mixture inside the extraction tank on the screen of the display in real time, to help the staff determine whether to continue to add calcium hydroxide to the extraction tank, and the temperature sensor will also display the temperature of the propionic acid mixture in real time, to help the staff determine whether to increase the temperature of the steam passing into the extraction tank.

[0009] Preferably, the display is arranged on one side of the heat preservation shell, and the display is electrically connected to the driving device. The display can be controlled with high precision and can be programmed according to actual use requirements. The display can be automatically operated through the data sent back by the pH detector and the temperature sensor, thus freeing up human resources.

[0010] Preferably, the technical solution of the utility model is as follows: the driving device includes a main gear, a sub-gear, a chain, a support seat and a motor; the main gear and the sub-gear are both connected above the top plate of the extraction tank, and the fixed shafts of the main gear and the sub-gear pass through the top plate of the extraction tank and are respectively connected to the fixed shaft of the stirring shaft inside the extraction tank; the chain is sleeved on the main gear and the sub-gear, the support seat is mounted on the top plate of the extraction tank, the motor is fixedly connected to the top plate of the support seat, and the output end of the motor passes through the top plate of the support seat and is connected to the main gear; after the motor is started, the sub-gear can be driven to rotate together through the main gear by the chain; while the main gear and the sub-gear rotate, the two stirring shafts inside the extraction tank will be driven to rotate synchronously, thereby achieving efficient and uniform mixing of the propionic acid mixture and calcium hydroxide, thereby improving the production efficiency and product quality of calcium propionate.

[0011] Preferably, the water spraying device comprises a self-priming pump and a water spraying seat, the self-priming pump is arranged on one side of the extraction tank, and the water outlet of the self-priming pump is connected with a conduit, one end of the conduit is connected with the self-priming pump, the other end of the conduit passes through the tank body of the extraction tank and is connected to the inside of the extraction tank, the water outlet of the self-priming pump is connected with a guide pipe, the other end of the guide pipe passes through the tank body of the extraction tank and is connected to the water spraying seat inside the extraction tank, the self-priming pump can transport the propionic acid mixture containing calcium propionate to the water spraying seat through the conduit, and spray it out through the water spraying seat, so that the propionic acid mixture inside the extraction tank forms a tumbling state, thereby preventing the calcium propionate from sinking and accumulating on the bottom plate of the extraction tank and blocking the discharge port when the propionic acid mixture is in a static state.

[0012] Preferably, the bottom of the extraction tank is connected with a discharge port, and an electric valve is arranged inside the discharge port. The electric valve used is an electric ball valve, which can be completely sealed within a larger pressure and temperature range to avoid leakage caused by excessive pressure inside the extraction tank when calcium propionate is precipitated, and the electric ball valve can be opened and closed quickly under the control of the display.

[0013] Preferably, a steam generator is provided on one side of the extraction tank, and the air inlet of the coil is connected to the steam generator. The steam generator has a very fast gas production speed and a relatively small volume, and is easy to install and move.

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

[0015] 1. After the propionic acid mixture and calcium hydroxide are placed in the extraction tank, the steam generator inputs high-temperature steam into the extraction tank through the coil. The high-temperature steam will provide its own heat to the propionic acid mixture inside the extraction tank to keep the propionic acid mixture warm until the reaction of the propionic acid mixture and calcium hydroxide is completed. The temperature of the propionic acid mixture and the tank will be kept at 80 degrees, ensuring the reaction rate of propionic acid and calcium hydroxide, allowing them to react completely and improving the product yield;

[0016] 2. After calcium hydroxide is put into the propionic acid mixture, calcium propionate begins to precipitate from the propionic acid mixture. After calcium propionate begins to precipitate, the display starts the self-priming pump, and the self-priming pump extracts the propionic acid mixture containing calcium propionate in the extraction tank through the catheter, and then uses the guide pipe to transport the propionic acid mixture containing calcium propionate to the water spray seat, and sprays it out through the water spray seat, so that the propionic acid mixture inside the extraction tank forms a tumbling state, preventing the calcium propionate from sinking to the bottom plate of the extraction tank in the propionic acid mixture in a static state and blocking the discharge port of the extraction tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of a constant temperature extraction tank for the production of natural calcium propionate;

[0018] Figure 2 This is a schematic diagram of the coordinated structure of a driving device and a stirring shaft of a constant temperature extraction tank for the production of natural calcium propionate;

[0019] Figure 3 This is a schematic diagram of the internal structure of a constant temperature extraction tank for the production of natural calcium propionate (the extraction tank is a whole, and the parts are removed to show the internal structure.)

[0020] Figure 4 This is a schematic diagram of the main view of a constant temperature extraction tank for the production of natural calcium propionate;

[0021] Figure 5 for Figure 4 DD cross-sectional diagram;

[0022] In the figure: 1-extraction tank, 11-PH value detector, 12-temperature sensor, 2-insulation shell, 21-display, 3-stirring shaft, 4-driving device, 41-main gear, 42-sub gear, 43-chain, 44-support seat, 45-motor, 5-coil, 6-water spraying device, 61-self-priming pump, 62-water spraying seat, 63-conduit, 64-guide pipe, 7-discharge port, 71-electric valve, 8-steam generator. DETAILED DESCRIPTION

[0023] The following will be combined with the attached embodiment of the present utility model Figure 1-5 , the technical solutions in the embodiments of the utility model are described in detail.

[0024] like Figure 1 As shown, a constant temperature extraction tank 1 for producing natural calcium propionate comprises an extraction tank 1, and an insulation shell 2 is vertically arranged on the outside of the extraction tank 1. The insulation shell 2 itself is made of high temperature resistant and heat insulating materials and has excellent heat preservation and heat insulation functions. After the heating rod inside the extraction tank 1 heats the propionic acid mixture inside the extraction tank 1 to 80 degrees, the insulation shell 2 can slow down the cooling speed of the propionic acid mixture in the extraction tank 1 due to its own physical properties, thereby increasing the reaction rate of propionic acid and calcium hydroxide.

[0025] like Figure 1 As shown, a steam generator 8 is provided on one side of the extraction tank 1, and the steam generator 8 is connected to the coil 5 inside the extraction tank 1 by a pipeline. When the steam generator 8 is working, the high-temperature steam generated by itself can be input into the interior of the extraction tank 1 through the coil 5, and the heat carried by the high-temperature steam itself can be transferred to the propionic acid mixed liquid inside the extraction tank 1 to keep it warm.

[0026] like Figure 2 As shown, the driving device 4 is arranged on the top plate of the extraction tank 1, and the driving device 4 used includes a main gear 41, a sub-gear 42, a chain 43, a support seat 44 and a motor 45. The main gear 41 and the sub-gear 42 are rotatably connected to the top plate of the extraction tank 1, and the fixed axes of the main gear 41 and the sub-gear 42 pass through the top plate of the stock extraction tank 1, and are respectively fixedly connected to the stirring shaft 3 inside the extraction tank 1. When the main gear 41 and the sub-gear 42 rotate, they will synchronously drive the stirring shaft 3 to rotate.

[0027] like Figure 2 As shown, the chain 43 is sleeved on the main gear 41 and the sub-gear 42, so that the main gear 41, the sub-gear 42 and the chain 43 form a sprocket mechanism. When the main gear 41 rotates, it will drive the sub-gear 42 to rotate synchronously through the chain 43. The support seat 44 is mounted above the main gear 41. The motor 45 is fixedly connected to the support seat 44 with screws, and the output end of the motor 45 passes through the top plate of the support seat 44 and is connected to the fixed shaft of the main gear 41.

[0028] like Figure 2 As shown, since the output end of the motor 45 is fixedly connected to the main gear 41, the motor 45 will drive the main gear 41 to rotate when it is started, and the main gear 41 will drive the sub-gear 42 to rotate through the chain 43 when it rotates. Since the fixed shafts of the main gear 41 and the sub-gear 42 are connected to the stirring shaft 3, the motor 45 will indirectly drive the stirring shaft 3 to rotate when it is started, and then mix and stir the propionic acid mixed liquid in the extraction tank 1 through the stirring shaft 3.

[0029] like Figure 3As shown, the coil 5 is vertically arranged on the inner wall of the extraction tank 1. After the propionic acid mixture enters the extraction tank 1 through the feed port on the top plate of the extraction tank 1, it is stirred and mixed through the stirring shaft 3. After reaching a suitable concentration, the stirring shaft 3 stops rotating, and the high-temperature steam is passed into the extraction tank 1 through the coil 5. The coil 5 is vertically arranged in the extraction tank 1, which can ensure that the temperature of the high-temperature steam can be evenly transferred to the propionic acid mixture in the extraction tank 1, and the propionic acid mixture in the extraction tank 1 is kept warm. The temperature of the propionic acid mixture at various positions in the extraction tank 1 is different, which will not lead to different reaction rates of propionic acid and calcium hydroxide, thereby reducing the product yield of calcium propionate.

[0030] like Figure 4 As shown, the water spraying device 6 includes a self-priming pump 61, which is arranged on one side of the extraction tank 1, and a conduit 63 is connected to the water inlet of the self-priming pump 61, one end of the conduit 63 is connected to the self-priming pump 61, and the other end of the conduit 63 passes through the shell of the heat-insulating shell 2 and is connected to the tank body of the extraction tank 1 and is inside the extraction tank 1. The propionic acid and calcium hydroxide mixture inside the extraction tank 1 reaches a corresponding concentration, and the temperature is always maintained at 80 degrees. When calcium propionate begins to precipitate, the self-priming pump 61 extracts the propionic acid mixture containing calcium propionate inside the extraction tank 1 through the conduit 63, and transmits it to the water spraying seat 62 through the guide pipe 64.

[0031] like Figure 4 As shown, the display 21 is fixedly connected to one side of the insulation shell 2, and the display 21 is electrically connected to the electric valve 71 inside the discharge port 7. Under the control of the display 21, the electric valve 71 can be quickly opened and closed to prevent the propionic acid mixture inside the extraction tank 1 from flowing out, and the display 21 is also electrically connected to the transmission system on the top plate of the extraction tank 1, and the pH value detector 11 and the temperature sensor 12 inside the extraction tank 1. Because the display 21 itself can be programmed according to actual usage requirements, it can be automatically operated through the data sent back by the pH value detector 11 and the temperature sensor 12, freeing up human resources.

[0032] like Figure 5As shown, the water spray seat 62 is fixedly connected to the bottom plate inside the extraction tank 1, and the water inlet of the water spray seat 62 is connected to a guide pipe 64, one end of the guide pipe 64 is connected to the water spray seat 62, and the other end of the guide pipe 64 passes through the tank body of the extraction tank 1 and the shell of the insulation shell 2 to be connected to the water outlet of the self-priming pump 61. After the self-priming pump 61 extracts the propionic acid mixture through the conduit 63, it will be transmitted to the water spray seat 62 through the guide pipe 64, and the propionic acid mixture will be sprayed out through the water spray seat 62, so that the propionic acid mixture inside the extraction tank 1 will form a boiling state under the action of the water spray seat 62, and the precipitated calcium propionate will also float up and down in the propionic acid mixture as the propionic acid mixture rolls, thereby preventing the calcium propionate from sinking and accumulating on the bottom plate of the extraction tank 1 when the propionic acid mixture inside the extraction tank 1 is stationary, and blocking the discharge port 7 of the extraction tank 1.

[0033] like Figure 5 As shown, a discharge port 7 is also provided on the bottom plate of the extraction tank 1, and an electric valve 71 is connected to the inside of the discharge port 7. The electric valve 71 used is an electric ball valve. The electric ball valve can be completely sealed within a larger pressure and temperature range, so as to prevent leakage of the propionic acid mixture due to excessive pressure inside the extraction tank 1 during the precipitation of calcium propionate. Moreover, the electric ball valve is electrically connected to the display 21, and can be quickly opened and closed under the control of the display 21, so that the calcium propionate mixture inside the extraction tank 1 can flow out through the discharge port 7.

[0034] like Figure 5 As shown, a pH detector 11 and a temperature sensor 12 are fixedly connected to the inner wall of the extraction tank 1, and the pH detector 11 and the temperature sensor 12 are electrically connected to the display 21 on the insulation shell 2. Therefore, when the pH detector 11 and the temperature sensor 12 are performing production work, the pH value and temperature of the propionic acid mixture inside the extraction tank 1 can be transmitted to the display 21 in real time, and displayed on the screen of the display 21 to remind the staff whether to continue adding calcium hydroxide to the extraction tank 1 or whether to increase the temperature of the steam, thereby indirectly increasing the temperature of the propionic acid mixture in the extraction tank 1.

[0035] The movement process of this embodiment: when producing calcium propionate, after adding the propionic acid mixture into the extraction tank 1 through the preset feed port on the top plate of the extraction tank 1, the propionic acid mixture in the extraction tank 1 is heated by the heating rod provided by the extraction tank 1. After heating it to 80 degrees, the cover of the feed port is opened again to add calcium hydroxide into the extraction tank 1.

[0036] After calcium hydroxide is added to the propionic acid mixture, the driving device 4 is started through the display 21, and the motor 45 drives the main gear 41 to rotate. The main gear 41 drives the sub-gear 42 to rotate synchronously through the chain 43. The main gear 41 and the sub-gear 42 rotate while driving the stirring shaft 3 inside the extraction tank 1 to rotate. The stirring shaft 3 stirs the propionic acid mixture and calcium hydroxide in the extraction tank 1 evenly while rotating.

[0037] After the propionic acid mixture and calcium hydroxide in the extraction tank 1 are stirred evenly and calcium propionate begins to precipitate, the stirring shaft 3 stops rotating and the steam generator 8 starts working to input high-temperature steam into the extraction tank 1 through the coil 5, so that the heat of the high-temperature steam itself is transferred to the propionic acid mixture in the extraction tank 1, thereby keeping the propionic acid mixture in the extraction tank 1 warm and keeping the propionic acid mixture at about 80 degrees, thereby maintaining the precipitation rate of calcium propionate.

[0038] When calcium propionate begins to precipitate, the self-priming pump 61 is started, and the self-priming pump 61 extracts the propionic acid mixture containing calcium propionate in the extraction tank 1 through the conduit 63, and transmits it to the water spray seat 62 through the backflow pipe, so that the propionic acid mixture is sprayed out through the water spray seat 62, so that the propionic acid mixture in the extraction tank 1 is kept in a boiling state under the action of the water spray seat 62, and the calcium propionate will also float up and down in the propionic acid mixture as the propionic acid mixture rolls, thereby preventing the precipitated calcium propionate from sinking and accumulating on the bottom plate of the extraction tank 1 and blocking the discharge port 7 in the static propionic acid mixture in the extraction tank 1.

[0039] When calcium propionate is precipitated, the pH detector 11 and the temperature sensor 12 arranged on the inner wall of the extraction tank 1 will also monitor the pH value and temperature of the propionic acid mixture in the extraction tank 1 at all times, and display the data on the screen of the display 21 to help the staff determine whether it is necessary to continue to add calcium hydroxide to the extraction tank 1, or whether to increase the temperature of the steam, thereby indirectly increasing the temperature of the propionic acid mixture to ensure the reaction rate of propionic acid and calcium hydroxide.

[0040] The above embodiments are only for illustrating the technical idea of ​​the present utility model, and cannot be used to limit the protection scope of the present utility model. Any changes made on the basis of the technical solution in accordance with the technical idea proposed by the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A constant temperature extraction tank for natural calcium propionate production, characterized in that: The invention comprises an extraction tank (1) for extracting calcium propionate, an insulation shell (2) for insulating the extraction tank (1), a stirring shaft (3) for promoting a reaction rate, a driving device (4) for driving the stirring shaft (3) to rotate, a coil (5) for insulating a propionic acid mixed liquid, and a water spraying device (6) for preventing the calcium propionate from sinking to the bottom, wherein the insulation shell (2) is vertically connected to the outside of the extraction tank (1), the stirring shaft (3) has two vertically connected to a top plate inside the extraction tank (1), the driving device (4) is fixed above the top plate of the extraction tank (1), and the driving device (4) and the stirring shaft (3) are fixedly connected, the coil (5) is arranged inside the extraction tank (1) and vertically connected to the inner wall of the extraction tank (1), and the water spraying device (6) is located inside the extraction tank (1) and fixedly connected to the bottom plate of the extraction tank (1).

2. A constant temperature extraction tank for natural calcium propionate production according to claim 1, characterized in that: A pH value detector (11) and a temperature sensor (12) are provided on the inner wall of the extraction tank (1), and both the pH value detector (11) and the temperature sensor (12) are electrically connected to the display (21).

3. A constant temperature extraction tank for natural calcium propionate production according to claim 2, characterized in that: A display (21) is provided on one side of the heat-insulating shell (2), and the display (21) is electrically connected to the driving device (4).

4. A constant temperature extraction tank for natural calcium propionate production according to claim 3, characterized in that: The driving device (4) comprises a main gear (41), a sub-gear (42), a chain (43), a support seat (44) and a motor (45); the main gear (41) and the sub-gear (42) are both connected above the top plate of the extraction tank (1); the fixed shafts of the main gear (41) and the sub-gear (42) pass through the top plate of the extraction tank (1) and are respectively connected to the fixed shaft of the stirring shaft (3) inside the extraction tank (1); the chain (43) is sleeved on the main gear (41) and the sub-gear (42); the support seat (44) is mounted on the top plate of the extraction tank (1); the motor (45) is fixedly connected to the top plate of the support seat (44); and the output end of the motor (45) passes through the top plate of the support seat (44) and is connected to the main gear (41).

5. A constant temperature extraction tank for natural calcium propionate production according to claim 1, characterized in that: The water spray device (6) comprises a self-priming pump (61), a water spray seat (62), a conduit (63) and a flow guide pipe (64); the self-priming pump (61) is arranged on one side of the extraction tank (1); the water outlet of the self-priming pump (61) is connected to the conduit (63); one end of the conduit (63) is connected to the self-priming pump (61); the other end of the conduit (63) passes through the tank body of the extraction tank (1) and is connected to the inside of the extraction tank (1); the water outlet of the self-priming pump (61) is connected to the flow guide pipe (64); the other end of the flow guide pipe (64) passes through the tank body of the extraction tank (1) and is connected to the water spray seat (62) inside the extraction tank (1).

6. A constant temperature extraction tank for natural calcium propionate production according to claim 1, characterized in that: The bottom of the extraction tank (1) is connected to a discharge port (7), and an electric valve (71) is arranged inside the discharge port (7).

7. The constant temperature extraction tank for natural calcium propionate production according to claim 1, characterized in that: A steam generator (8) is also provided on one side of the extraction tank (1), and the air inlet of the coil (5) is connected to the steam generator (8).

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