Reaction kettle for producing auxiliary chemicals

Abstract

The utility model relates to the field of chemical auxiliary agent production, in particular to a reaction kettle for chemical auxiliary agent production, which comprises a reaction kettle with a feeding hole in the upper end face, and a preheating structure is arranged on the outer wall of the reaction kettle; the preheating structure comprises a preheating cylinder arranged on the outer wall of the reaction kettle, a heat conduction cavity arranged between the inner wall of the preheating cylinder and the outer wall of the reaction kettle and heat conduction fins arranged on the outer wall of the heat conduction cavity in an array mode, and the preheating cylinder and the outer wall of the reaction kettle form a closed cavity. When the auxiliary agent in the preheating cylinder reaches the preset temperature, the preheating auxiliary agent in the preheating cylinder can be conveyed into the reaction kettle for reaction work, and meanwhile, a new batch of auxiliary agent to be preheated is injected into the preheating cylinder to form circulation, so that raw materials are preheated by directly utilizing the waste heat of the reaction kettle; the energy consumption of external heating equipment is reduced, the energy-saving effect is achieved, the temperature rise time can be shortened after the preheated auxiliary enters the reaction kettle, and the reaction rate is increased.

Description

Technical Field

[0001] This utility model relates to the field of chemical auxiliaries production, and specifically discloses a reaction vessel for chemical auxiliaries production. Background Technology

[0002] A reaction vessel used in the production of chemical auxiliaries is a crucial piece of equipment in the process. It is primarily used to realize chemical reactions and is the core site of these reactions, a key factor determining product quality and production efficiency. The working principle of the reaction vessel is based on the chemical reaction of materials within a confined space. When the reactants are added to the vessel, the stirring system ensures uniform mixing. Simultaneously, the heating and cooling system precisely controls the temperature inside the vessel, ensuring the reaction proceeds within a suitable temperature range.

[0003] A reaction vessel typically consists of the following main parts: Vessel body: The main container part of the reaction vessel, used to hold the reactants. Stirring system: Composed of a stirring shaft and agitator, used to stir the reactants and ensure uniform reaction. Heating and cooling system: Achieves precise temperature control through a jacket or built-in heating element to meet the temperature requirements of different chemical reactions. The cooling system usually uses cooling water or cooling oil for cooling. Drive mechanism: Drives the agitator to rotate, ensuring uniform mixing of materials. Safety accessories: Such as safety valves, pressure gauges, thermometers, etc., used to monitor and control the safe operation of the reaction vessel. These safety accessories can monitor parameters such as pressure and temperature inside the reaction vessel in real time, ensuring that the equipment operates under safe conditions.

[0004] Traditional reactors dissipate most of the heat generated in exothermic reactions directly through the cooling system, failing to effectively utilize waste heat and resulting in serious energy waste. Additive raw materials also require additional heating equipment for preheating, increasing energy consumption and operational steps, and affecting reaction efficiency. Therefore, a new type of reactor for the production of chemical additives is needed to solve this problem. Utility Model Content

[0005] This utility model proposes a reaction vessel for the production of chemical additives. By utilizing the waste heat of the reaction vessel to preheat the raw materials, the energy consumption of external heating equipment is reduced, achieving energy-saving effect. Furthermore, the preheated additives can shorten the heating time and accelerate the reaction rate when entering the reaction vessel.

[0006] This utility model is implemented as follows: a reaction vessel for the production of chemical auxiliaries includes a reaction vessel with a feed inlet on the upper end face, a discharge pipe with a solenoid valve on the outer wall connected to the bottom end of the reaction vessel, and a stirring assembly installed inside the reaction vessel; a preheating structure is provided on the outer wall of the reaction vessel, and a material conveying structure is provided between the outer wall of the preheating structure and the reaction vessel.

[0007] The preheating structure includes a preheating cylinder disposed on the outer wall of the reactor, a heat-conducting cavity disposed between the inner wall of the preheating cylinder and the outer wall of the reactor, and heat-conducting fins arrayed on the outer wall of the heat-conducting cavity. The preheating cylinder and the outer wall of the reactor form a closed cavity.

[0008] The material conveying structure includes a conveying auger disposed on one side of the preheating cylinder, a first connecting pipe and a second connecting pipe connected to the outer wall of the conveying auger and distributed vertically, and the other ends of the first connecting pipe and the second connecting pipe are respectively connected to the reactor and the preheating cylinder.

[0009] As a preferred embodiment of the reaction vessel for producing chemical auxiliaries according to this utility model, the preheating structure further includes a cover plate that is detachably connected to the upper end face of the preheating cylinder by bolts, an oil inlet that is connected to the upper end face of the heat conduction cavity and extends to the outside of the cover plate, and a drain pipe that is connected to the bottom end of the heat conduction cavity and has a solenoid valve installed on its outer wall.

[0010] As a preferred embodiment of the reaction vessel for producing chemical auxiliaries according to this utility model, the outer wall of the preheating cylinder is provided with a heat insulation layer.

[0011] As a preferred embodiment of the reaction vessel for producing chemical auxiliaries according to this utility model, a temperature sensor is installed inside the preheating cylinder.

[0012] As a preferred embodiment of the reaction vessel for producing chemical auxiliaries according to this utility model, the upper end face of the cover plate is connected to a feed pipe with a sealing cap threaded to the top.

[0013] In a preferred embodiment of the reaction vessel for producing chemical auxiliaries according to this utility model, both the first connecting pipe and the second connecting pipe are inclined.

[0014] As a preferred embodiment of the reaction vessel for producing chemical auxiliaries according to this utility model, the outer wall of the preheating cylinder is equipped with a controller, and the stirring assembly, conveying auger and solenoid valve are all electrically connected to the controller.

[0015] The beneficial effects of this utility model are:

[0016] While the chemical additives in the reactor are reacting, another batch of chemical additives in the preheating cylinder can be preheated. Once the additives in the preheating cylinder reach the preset temperature, they can be transferred to the reactor for reaction. At the same time, a new batch of additives to be preheated is injected into the preheating cylinder, forming a cycle. This directly utilizes the waste heat of the reactor to preheat the raw materials, reducing the energy consumption of external heating equipment and achieving energy saving. Furthermore, the preheated additives can shorten the heating time and accelerate the reaction rate when entering the reactor. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0018] Figure 1 This is an overall structural diagram of a reaction vessel for the production of chemical auxiliaries according to this utility model;

[0019] Figure 2 This is a structural diagram of the reaction vessel and preheating cylinder of this utility model;

[0020] Figure 3 This is a structural diagram of the preheating cylinder of this utility model;

[0021] Figure 4 This utility model Figure 1 Enlarged view of point A in the middle.

[0022] The markings in the diagram are as follows: 1. Reactor; 101. Stirring assembly; 2. Preheating cylinder; 201. Cover plate; 202. Heat conduction chamber; 203. Oil inlet; 204. Drain pipe; 205. Heat conduction fins; 206. Insulation layer; 3. Temperature sensor; 4. Conveying auger; 401. First connecting pipe; 402. Second connecting pipe. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0024] Please see Figure 1-4 A reaction vessel for producing chemical auxiliaries includes a reaction vessel 1 with a feed inlet on the upper end face, a discharge pipe with a solenoid valve on the outer wall connected to the bottom end of the reaction vessel 1, and a stirring assembly 101 installed inside the reaction vessel 1; a preheating structure is provided on the outer wall of the reaction vessel 1, and a material conveying structure is provided between the outer wall of the preheating structure and the reaction vessel 1.

[0025] The preheating structure includes a preheating cylinder 2 disposed on the outer wall of the reactor 1, a heat-conducting cavity 202 disposed between the inner wall of the preheating cylinder 2 and the outer wall of the reactor 1, and heat-conducting fins 205 arrayed on the outer wall of the heat-conducting cavity 202. The preheating cylinder 2 and the outer wall of the reactor 1 form a closed cavity.

[0026] The material conveying structure includes a conveying auger 4 disposed on one side of the preheating cylinder 2, a first connecting pipe 401 and a second connecting pipe 402 connected to the outer wall of the conveying auger 4 and distributed vertically, and the other ends of the first connecting pipe 401 and the second connecting pipe 402 are respectively connected to the reactor 1 and the preheating cylinder 2.

[0027] In this embodiment: Chemical additives are poured into reactor 1 through the feed inlet. Simultaneously, the chemical additives in reactor 1 are stirred by the stirring assembly 101. At the same time, another batch of chemical additives is placed into the preheating cylinder 2. When an exothermic reaction occurs in reactor 1, heat is transferred to the preheating cylinder 2 through the outer wall of reactor 1, preheating the additives in the preheating cylinder 2 and absorbing the heat conducted from the outer wall of reactor 1. The preheating cylinder 2, which holds the raw materials of the additives to be preheated, absorbs the heat released from reactor 1 through the heat-conducting cavity 202 and heat-conducting fins 205, thereby absorbing the heat released from reactor 1 during the chemical additive reaction. At the same time, another batch of chemical additives can be preheated. When the additives in the preheating cylinder 2 reach the preset temperature, the preheated additives in the preheating cylinder 2 can be put into the conveying auger 4 through the second connecting pipe 402. The conveying auger 4 is then transported to the reactor 1 through the first connecting pipe 401 for reaction. At the same time, a new batch of additives to be preheated is injected into the preheating cylinder 2 to form a cycle. In this way, the raw materials are preheated by directly using the waste heat of the reactor 1, reducing the energy consumption of external heating equipment and achieving energy saving. Moreover, the preheated additives can shorten the heating time and accelerate the reaction rate after entering the reactor 1.

[0028] As a technical optimization of this utility model, the preheating structure also includes a cover plate 201 that is detachably connected to the upper end face of the preheating cylinder 2 by bolts, an oil inlet 203 that is connected to the upper end face of the heat conduction cavity 202 and extends to the outside of the cover plate 201, and a drain pipe 204 that is connected to the bottom end of the heat conduction cavity 202 and has a solenoid valve installed on its outer wall.

[0029] In this embodiment: the cover plate 201 can be disassembled by bolts to maintain the preheating cylinder 2, and the heat transfer oil is delivered to the heat transfer cavity 202 through the oil inlet 203. The heat transfer oil in the heat transfer cavity 202 can enhance the heat transfer efficiency, and the heat transfer oil can be discharged through the drain pipe 204.

[0030] As a technical optimization of this utility model, the outer wall of the preheating cylinder 2 is provided with a heat insulation layer 206.

[0031] In this embodiment, the temperature inside the preheating cylinder 2 can be kept warm by the insulation layer 206, reducing heat loss to the environment and ensuring that the absorbed heat is mainly used for preheating of the additives.

[0032] As a technical optimization of this utility model, a temperature sensor 3 is installed inside the preheating cylinder 2.

[0033] In this embodiment, temperature sensor 3 can be used to detect the temperature inside the preheating cylinder 2.

[0034] As a technical optimization of this utility model, the upper end face of the cover plate 201 is connected to a feed pipe with a sealing cap connected to the top thread.

[0035] In this embodiment, the chemical additives are easily introduced into the preheating cylinder 2 through the feed pipe.

[0036] As a technical optimization of this utility model, both the first connecting pipe 401 and the second connecting pipe 402 are inclined.

[0037] In this embodiment: because both the first connecting pipe 401 and the second connecting pipe 402 are inclined, the additives in the preheating cylinder 2 can smoothly enter the conveying auger 4, and then enter the reactor 1 through the first connecting pipe 401.

[0038] As a technical optimization of this utility model, a controller is installed on the outer wall of the preheating cylinder 2, and the stirring assembly 101, the conveying auger 4 and the solenoid valve are all electrically connected to the controller.

[0039] In this embodiment: the stirring assembly 101, the conveying auger 4 and the solenoid valve can be controlled to work normally by the controller, which is a Siemens S7-1200 series PLC.

[0040] The working principle and usage process of this utility model are as follows: Chemical additives are poured into the reactor 1 through the feed inlet. Simultaneously, the chemical additives in the reactor 1 are stirred by the stirring assembly 101. At the same time, another batch of chemical additives is placed into the preheating cylinder 2 through the feed pipe. When an exothermic reaction occurs in the reactor 1, heat is transferred to the preheating cylinder 2 through the outer wall of the reactor 1, preheating the additives in the preheating cylinder 2 and absorbing the heat conducted from the outer wall of the reactor 1. The preheating cylinder 2, which holds the raw materials of the additives to be preheated, absorbs the heat released from the reactor 1 through the heat-conducting cavity 202 and heat-conducting fins 205. Thus, while the chemical additives are reacting, another batch of chemical additives can be preheated. When the additives in the preheating cylinder 2 are detected by the temperature sensor... After the device 3 detects that the preset temperature has been reached, the reacted additive inside the reactor 1 is discharged through the discharge pipe at the bottom of the reactor 1. The preheating additive in the preheating cylinder 2 is transported to the reactor 1 through the conveying structure to carry out the reaction. At the same time, a new batch of additive to be preheated is injected into the preheating cylinder 2 to form a cycle. (Because the reaction process is exothermic, it will generate a lot of heat. At this time, the preheating cylinder 2 can help dissipate heat and prevent the temperature from getting too high. Because the preheating cylinder 2 absorbs the waste heat that originally needed to be discharged through the cooling system, in other words, the preheating cylinder 2 replaces part of the cooling system's function and reuses the waste heat instead of taking away heat. Therefore, it will not affect the heat required for the reaction in the reactor 1 itself.)

[0041] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0042] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A reaction vessel for producing chemical auxiliaries, comprising a reaction vessel (1) with a feed inlet on its upper surface, wherein the bottom end of the reaction vessel (1) is connected to a discharge pipe with a solenoid valve installed on its outer wall, and a stirring assembly (101) is installed inside the reaction vessel (1); characterized in that: The outer wall of the reactor (1) is provided with a preheating structure, and a material conveying structure is provided between the outer wall of the preheating structure and the reactor (1); The preheating structure includes a preheating cylinder (2) disposed on the outer wall of the reactor (1), a heat-conducting cavity (202) disposed between the inner wall of the preheating cylinder (2) and the outer wall of the reactor (1), and heat-conducting fins (205) arranged in an array on the outer wall of the heat-conducting cavity (202). The preheating cylinder (2) and the outer wall of the reactor (1) form a closed cavity. The material conveying structure includes a conveying auger (4) disposed on one side of the preheating cylinder (2), a first connecting pipe (401) and a second connecting pipe (402) connected to the outer wall of the conveying auger (4) and distributed vertically, and the other ends of the first connecting pipe (401) and the second connecting pipe (402) are respectively connected to the reactor (1) and the preheating cylinder (2).

2. The reaction vessel for producing chemical auxiliaries according to claim 1, characterized in that: The preheating structure also includes a cover plate (201) that is detachably connected to the upper end face of the preheating cylinder (2) by bolts, an oil inlet (203) that is connected to the upper end face of the heat conduction cavity (202) and extends to the outside of the cover plate (201), and a drain pipe (204) that is connected to the bottom end of the heat conduction cavity (202) and has a solenoid valve installed on its outer wall.

3. The reaction vessel for producing chemical auxiliaries according to claim 1, characterized in that: The outer wall of the preheating cylinder (2) is provided with a heat insulation layer (206).

4. The reaction vessel for producing chemical auxiliaries according to claim 1, characterized in that: A temperature sensor (3) is installed inside the preheating cylinder (2).

5. A reaction vessel for producing chemical auxiliaries according to claim 2, characterized in that: The upper end face of the cover plate (201) is connected to a feed pipe with a sealing cap threaded to the top.

6. The reaction vessel for producing chemical auxiliaries according to claim 1, characterized in that: The first connecting pipe (401) and the second connecting pipe (402) are both inclined.

7. The reaction vessel for producing chemical auxiliaries according to claim 1, characterized in that: The outer wall of the preheating cylinder (2) is equipped with a controller, and the stirring assembly (101), the conveying auger (4) and the solenoid valve are all electrically connected to the controller.

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