Hydrolysis device

Abstract

This utility model belongs to the field of chemical equipment technology, specifically relating to a hydrolysis device, including a feeding tank, a buffer tank at the top of the feeding tank, a pH adjustment liquid inlet and a potassium phytate inlet at the top of the buffer tank, a heat exchanger connected to the feeding tank, a plurality of hydrolysis reaction vessels connected to the heat exchanger, an ejector between the heat exchanger and the hydrolysis reaction vessels, the plurality of hydrolysis reaction vessels being connected in sequence, a discharge pipe connected to the bottom of each of the hydrolysis reaction vessels, an exhaust port at the end of the discharge pipe, a flash tank I connected to the plurality of hydrolysis reaction vessels via the discharge pipe, a vent pipe at the top of flash tank I, a second flash tank connected to flash tank I, and a discharge pipe at the bottom of flash tank II. This utility model, by combining intermittent and continuous operation of the plurality of hydrolysis reaction vessels, can effectively control the hydrolysis reaction time and effectively control the product.

Description

Technical Field

[0001] This utility model belongs to the field of chemical equipment technology, and specifically relates to a hydrolysis device. Background Technology

[0002] Potassium phytate is a substance that can hydrolyze phytic acid, an organophosphorus compound mainly found in plants, especially in seeds, roots, and stems. Potassium phytate hydrolyzes phytic acid into inositol and phosphate, thereby releasing other nutrients that were bound to phytic acid.

[0003] Potassium phytate is typically mixed with acid or buffer solutions to ensure complete dissolution and the formation of a homogeneous reaction system. The raw materials to be hydrolyzed must first be mixed with purified water in a pulping tank to form a slurry before reacting with potassium phytate.

[0004] Chinese patent CN219441635U discloses a continuous phytate hydrolysis device, relating to the technical field of phytate hydrolysis equipment. The bottom material outlet of the raw material tank is connected to the material inlet of the feed pump via a pipeline. The material outlet of the feed pump is connected to the material inlet of the heat exchanger via a pipeline. The material outlet of the heat exchanger is connected to the material inlet of the ejector via a pipeline. The bottom material outlet of the ejector is connected to the hydrolysis tank via a pipeline. The top outlet of the hydrolysis tank is connected to a temporary storage tank via a pipeline. The heat exchanger and the ejector are respectively connected to a steam inlet pipeline via pipelines.

[0005] The patent uses a continuous hydrolysis device, which can improve the hydrolysis efficiency to some extent. However, long-term continuous processing can cause the device to operate under overload, posing a potential hazard and thus affecting the hydrolysis effect. Utility Model Content

[0006] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a hydrolysis device that can realize the staged control of materials and improve the hydrolysis efficiency.

[0007] The technical solution adopted by this utility model to solve its technical problem is:

[0008] The hydrolysis device of this utility model includes a feeding tank, a buffer tank at the top of the feeding tank, a pH adjustment liquid inlet and a potassium phytate inlet at the top of the buffer tank, a heat exchanger connected to the feeding tank, a plurality of hydrolysis reaction vessels connected to the heat exchanger, an ejector between the heat exchanger and the hydrolysis reaction vessels, the plurality of hydrolysis reaction vessels being connected in sequence, a discharge pipe connected to the bottom of each of the plurality of hydrolysis reaction vessels, an exhaust port at the end of the discharge pipe, a flash tank I connected to the plurality of hydrolysis reaction vessels through the discharge pipe, an evacuation pipe at the top of flash tank I, a second flash tank connected to flash tank I, and a discharge pipe at the bottom of flash tank II.

[0009] in:

[0010] The top of the feeding tank is equipped with a raw material inlet and a pure water inlet.

[0011] The number of hydrolysis reactors is 3-12, the inlet of the last-effect hydrolysis reactor is located on its upper outer side, and the top of the last-effect hydrolysis reactor is connected to the flash tank.

[0012] The exhaust port is located at the end of the discharge pipe away from the flash tank.

[0013] The ejector is provided with a steam pipe on its side, and the bottom of the ejector is connected to the bottom of the hydrolysis reactor through the ejection pipe. The connection between the side of the ejector and the steam pipe is connected to the top of the hydrolysis reactor.

[0014] Each of the aforementioned hydrolysis reactors is equipped with an exhaust valve at its top, and a connecting valve is installed between the bottom of each hydrolysis reactor and the discharge pipe.

[0015] The bottom of the first flash tank is connected to the middle of the second flash tank.

[0016] The top of the first flash tank is equipped with a primary flash pipe, and the top of the second flash tank is equipped with a secondary flash pipe.

[0017] A reactor discharge pump is installed between the discharge pipe and the flash tank, and a flash discharge pump is installed on the discharge pipe.

[0018] The hydrolysis reactor and flash tank are made of titanium alloy.

[0019] The beneficial effects of this utility model are:

[0020] This invention combines intermittent and continuous operation of several hydrolysis reactors, effectively controlling the hydrolysis reaction time and product control. After hydrolysis, a large amount of non-condensable gas and hydrolysis gas are generated, continuously accumulating within the reactors, and some hydrolysis reaction liquid is mixed in. The accumulated non-condensable gas and hydrolysis gas can be discharged through the exhaust port at one end of the discharge pipe, and the mixed reaction liquid can also be recovered. During the reaction, any one hydrolysis reactor can be opened for discharge, or discharge can be performed after hydrolysis by all the reactors, achieving simultaneous operation of intermittent and continuous reactions. This invention can be used for the hydrolysis of various materials. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] In the diagram: 1. Feeding tank; 2. Hydrolysis reactor; 3. Flash tank one; 4. Flash tank two; 5. Discharge pipe; 6. Drain pipe; 7. Feeding pipe; 8. Exhaust port; 9. Ejector; 10. Heat exchanger; 11. Steam pipe; 12. Buffer tank; 101. Raw material inlet; 102. Pure water inlet; 201. Exhaust valve; 202. Connecting valve; 301. Primary flash evaporation pipe; 401. Secondary flash evaporation pipe; 901. Ejector pipe; 1201. pH adjustment solution inlet; 1202. Potassium phytate inlet. Detailed Implementation

[0023] The embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0024] Example 1

[0025] like Figure 1 As shown, the hydrolysis device of this utility model includes a feeding tank 1, a buffer tank 12 at the top of the feeding tank 1, a pH adjustment liquid inlet 1201 and a potassium phytate inlet 1202 at the top of the buffer tank 12, a heat exchanger 10 connected to the feeding tank 1, a plurality of hydrolysis reaction vessels 2 connected to the heat exchanger 10, an ejector 9 between the heat exchanger 10 and the hydrolysis reaction vessels 2, the plurality of hydrolysis reaction vessels 2 connected in sequence, a discharge pipe 7 connected to the bottom of each of the plurality of hydrolysis reaction vessels 2, an exhaust port 8 at the end of the discharge pipe 7, a flash tank 3 connected to the plurality of hydrolysis reaction vessels 2 through the discharge pipe 7, an exhaust pipe 6 at the top of the flash tank 3, a second flash tank 4 connected to the first flash tank 3, and a discharge pipe 5 at the bottom of the second flash tank 4.

[0026] Each of the hydrolysis reactors 2 is connected to a discharge pipe 7 at the bottom, which enables the hydrolysis reaction liquid in each hydrolysis reactor 2 to be discharged separately, or to be discharged continuously.

[0027] The top of the feeding tank 1 is equipped with a raw material inlet 101 and a pure water inlet 102.

[0028] The number of hydrolysis reactors 2 is 3-12. The inlet of the last-effect hydrolysis reactor 2 is located on its upper outer side, and the top of the last-effect hydrolysis reactor 2 is connected to the flash tank 3. The number of hydrolysis reactors 2 can be selected according to the characteristics of the raw material to be hydrolyzed.

[0029] The exhaust port 8 is located at the end of the discharge pipe 7 away from the flash tank 3.

[0030] A steam pipe 11 is provided on the side of the injector 9. The bottom of the injector 9 is connected to the bottom of the hydrolysis reactor 2 through the injection pipe 901. The connection between the side of the injector 9 and the steam pipe 11 is connected to the top of the hydrolysis reactor 2.

[0031] Each of the hydrolysis reactors 2 is equipped with an exhaust valve 201 at the top, and a connecting valve 202 is installed between the bottom of each of the hydrolysis reactors 2 and the discharge pipe 7.

[0032] The bottom of flash tank 1 (3) is connected to the middle of flash tank 2 (4).

[0033] Flash tank 1 (3) is equipped with a primary flash pipe 301 at the top, and flash tank 2 (4) is equipped with a secondary flash pipe 401 at the top.

[0034] A reactor discharge pump is installed between the discharge pipe 7 and the flash tank 3, and a flash discharge pump is installed on the discharge pipe 5.

[0035] The hydrolysis reactor 2 and flash evaporator 3 are made of titanium alloy. Titanium alloy is stable and not easily affected by the acidity or alkalinity of the hydrolysis reaction solution.

[0036] Working principle and process:

[0037] During hydrolysis, potassium phytate and pH-adjusting sulfurous acid are first mixed in buffer tank 12, while the raw material to be hydrolyzed is mixed with pure water in feed tank 1 to form a homogeneous raw material. Then, the mixture in buffer tank 12 is added to feed tank 1, and the solution temperature is adjusted to a suitable temperature through heat exchanger 10. The solution then enters ejector 9, where steam is added to spray the material into hydrolysis reactor 2 for multi-effect hydrolysis. After a period of reaction, the connecting valve 202 and exhaust port 8 at the bottom of some hydrolysis reactors 2 are opened to prevent excessive pressure in some hydrolysis reactors 2, which would affect the hydrolysis efficiency. The number of hydrolysis reactors 2 that are opened can be selected according to the hydrolysis progress of the raw material. The hydrolysis reaction solution is then transported to flash tank 3 and flash tank 4 to obtain a relatively pure hydrolysis product. The steam after flashing in flash tank 3 and flash tank 4 can be recovered and reused. This device can also be used for the hydrolysis of other materials.

Claims

1. A hydrolysis apparatus, comprising a feeding tank (1), characterized in that, A buffer tank (12) is provided on the top of the feeding tank (1). A pH adjustment liquid inlet (1201) and a potassium phytate inlet (1202) are provided on the top of the buffer tank (12). A heat exchanger (10) is connected to the feeding tank (1). Several hydrolysis reactors (2) are connected to the heat exchanger (10). An ejector (9) is provided between the heat exchanger (10) and the hydrolysis reactors (2). Several hydrolysis reactors (2) are connected in sequence. A discharge pipe (7) is connected to the bottom of each of the several hydrolysis reactors (2). An exhaust port (8) is provided at the end of the discharge pipe (7). Several hydrolysis reactors (2) are connected to a flash tank (3) through the discharge pipe (7). An evaporation pipe (6) is provided on the top of the flash tank (3). A flash tank (4) is connected to the flash tank (3). A discharge pipe (5) is provided at the bottom of the flash tank (4).

2. The hydrolysis apparatus according to claim 1, characterized in that, The top of the feeding tank (1) is provided with a raw material inlet (101) and a pure water inlet (102).

3. The hydrolysis apparatus according to claim 1, characterized in that, The number of hydrolysis reactors (2) is 3-12. The inlet of the final effect hydrolysis reactor (2) is located on its upper outer side. The top of the final effect hydrolysis reactor (2) is connected to the flash tank (3).

4. The hydrolysis apparatus according to claim 1, characterized in that, The exhaust port (8) is located at the end of the discharge pipe (7) away from the flash tank (3).

5. The hydrolysis apparatus according to claim 1, characterized in that, A steam pipe (11) is provided on the side of the injector (9). The bottom of the injector (9) is connected to the bottom of the hydrolysis reactor (2) through the injection pipe (901). The connection between the side of the injector (9) and the steam pipe (11) is connected to the top of the hydrolysis reactor (2).

6. The hydrolysis apparatus according to claim 1, characterized in that, Each of the hydrolysis reactors (2) is equipped with an exhaust valve (201) at the top and a connecting valve (202) is provided between the bottom of each of the hydrolysis reactors (2) and the discharge pipe (7).

7. The hydrolysis apparatus according to claim 1, characterized in that, The bottom of flash tank 1 (3) is connected to the middle of flash tank 2 (4).

8. The hydrolysis apparatus according to claim 1, characterized in that, Flash tank 1 (3) is equipped with a primary flash pipe (301) at the top, and flash tank 2 (4) is equipped with a secondary flash pipe (401) at the top.

9. The hydrolysis apparatus according to claim 1, characterized in that, A reactor discharge pump is installed between the discharge pipe (7) and the flash tank (3), and a flash discharge pump is installed on the discharge pipe (5).

10. The hydrolysis apparatus according to claim 1, characterized in that, The hydrolysis reactor (2) and flash tank (3) are made of titanium alloy.

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