Continuous liquid mixing device for acid-base reaction
Through the combination of a mixer and a falling film cooler, the problem of poor cooling effect in the acid-base reaction is solved, and the rapid, uniform mixing of the liquid and efficient heat removal are achieved, thereby improving the reaction efficiency.
Patent Information
- Application Number
- CN202422338312.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2025-08-26
- Estimated Expiration
- 2034-09-25
AI Technical Summary
In the prior art, the mixing operation of acid-base reaction is intermittent, the cooling effect is poor, and the continuous operation is not possible, resulting in low reaction efficiency.
A combination device of a mixer and a falling film cooler is adopted. The mixer is equipped with a spoiler and a spoiler. The falling film cooler is used to quickly remove the reaction heat and achieve continuous mixing of the liquid.
The rapid, uniform mixing of liquids and efficient heat removal are achieved, improving the reaction efficiency and the production efficiency of the mixing device.
Smart Images
Figure CN223263776U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of liquid mixing, in particular to a liquid continuous mixing device for acid-base reaction. Background Art
[0002] During chemical production, concentrated acid often needs to be prepared into dilute acid, or reactions between two acidic and alkaline fluids often occur. The preparation of dilute acid and the acid-base reactions generate a large amount of heat. Generally, acid or alkaline solution is slowly added while stirring in the kettle to allow the two fluids to mix fully and quickly. At the same time, the jacket cooling water of the kettle removes the reaction heat. Conventional operations are mostly intermittent and are affected by the cooling area, resulting in poor cooling effect, inability to operate continuously, and low reaction efficiency.
[0003] Therefore, it is necessary to provide a liquid continuous mixing device for acid-base reaction that can continuously, quickly and evenly mix the reaction and quickly take away the reaction heat. Utility Model Content
[0004] The utility model provides a liquid continuous mixing device for acid-base reaction to solve the above technical problems.
[0005] In order to achieve the above-mentioned purpose, an embodiment of the present utility model provides a liquid continuous mixing device for acid-base reaction, including: a mixer and a falling film cooler, the mixer and the falling film cooler are arranged side by side, the mixer is connected to the falling film cooler through a mixed liquid discharge pipe, and a plurality of spoilers are provided on the inner wall of the mixer.
[0006] Furthermore, the angle between the spoiler and the inner wall of the mixer is 65 degrees.
[0007] Furthermore, a spoiler is installed in the middle of the spoiler.
[0008] Furthermore, the spoiler is in the shape of a hollow tube.
[0009] Furthermore, the surface of the spoiler is provided with turbulence holes arranged at equal intervals.
[0010] Furthermore, an acid liquid feed port is provided on the side wall of the mixer, and an acid liquid distributor is installed inside the mixer at the position of the acid liquid feed port. The acid liquid distributor includes an extension pipe, and the extension pipe is provided with multiple acid liquid discharge holes toward the lower position of the mixer.
[0011] Furthermore, a water or alkali solution inlet is provided at the bottom of the mixer.
[0012] Furthermore, a mixed liquid discharge port is provided on the top of the mixer.
[0013] Furthermore, a mixed liquid feed port is provided on one side of the falling film cooler, and the mixed liquid feed port is connected to the mixed liquid discharge port through the mixed liquid discharge pipe. A vent is provided on the top of the falling film cooler, and a finished liquid outlet is provided at the bottom.
[0014] Furthermore, a cooling water return port is provided on one side of the falling film cooler near the upper portion, and a cooling water inlet is provided on the other side near the lower portion.
[0015] Compared with the prior art, the beneficial effects of the present invention are:
[0016] By using the mixer and falling film cooler together, the two liquids can be mixed quickly and continuously, improving the production efficiency of the mixing device;
[0017] By setting up spoilers and spoiler plates, the two liquids are fully mixed, the degree of mixing reaction is improved, and the uniformity of the resulting mixed solution is enhanced;
[0018] By setting up a falling film cooler, the heat generated by the reaction can be quickly discharged, the cooling effect is poor, and the feasibility of continuous reaction is improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0020] Figure 1 This is a structural schematic diagram of an optimal embodiment of a liquid continuous mixing device for acid-base reaction of the utility model.
[0021] Among them, 100, mixer; 101, acid liquid feed port; 102, acid liquid distributor; 103, water or alkali liquid inlet; 104, mixed liquid discharge port; 105, spoiler; 106, spoiler; 200, falling film cooler; 201, vent; 202, mixed liquid feed port; 203, cooling return water port; 204, cooling water inlet; 205, finished product liquid outlet; 300, mixed liquid discharge pipe. DETAILED DESCRIPTION
[0022] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.
[0023] See also Figure 1 , Figure 1 This is a schematic structural diagram of the optimal embodiment of a liquid continuous mixing device for acid-base reaction of the utility model. Figure 1As shown, at least one embodiment provides a liquid continuous mixing device for acid-base reaction, including: a mixer 100 and a falling film cooler 200, the part of the mixer 100 that contacts the material is made of one of modified PP material, fiberglass material, and Hastelloy material with strong acid and alkali resistance; the part of the falling film cooler 200 that contacts the material is made of one of modified PP material, Hastelloy material, modified graphite, and enamel with strong acid and alkali resistance, the mixer 100 and the falling film cooler 200 are arranged side by side, and the mixer 100 is connected to the falling film cooler 200 through a mixed liquid discharge pipe 300.
[0024] 1. Mixer 100
[0025] An acid liquid feed port 101 is provided on the side wall of the mixer 100. An acid liquid distributor 102 is installed inside the mixer 100 at the location of the acid liquid feed port 101. The acid liquid distributor 102 includes an extension pipe with multiple acid liquid discharge holes formed toward the bottom of the mixer 100. A water or alkali liquid inlet 103 is provided at the bottom of the mixer 100. A mixed liquid discharge port 104 is provided at the top of the mixer 100.
[0026] The inner wall of the mixer 100 is provided with a plurality of spoilers 106. The spoilers 106 are arranged above the acid liquid feed port 101 and below the mixed liquid discharge port 104. The angle between the spoilers 106 and the inner wall of the mixer 100 is 65 degrees. A spoiler 105 is installed in the middle of the spoilers 106. The spoiler 105 is hollow and tubular. The surface of the spoiler 105 is provided with turbulent holes arranged at equal intervals.
[0027] 2. Falling film cooler 200
[0028] A mixed liquid feed inlet 202 is provided on one side of the falling film cooler 200, which is connected to the mixed liquid discharge port 104 via a mixed liquid discharge pipe 300. A vent 201 is provided at the top of the falling film cooler 200, which is connected to a condensation and absorption device for absorbing a small amount of water vapor or acid gas generated by the reaction heat. A finished liquid outlet 205 is provided at the bottom. A cooling water return port 203 is provided on one side of the falling film cooler 200 near the top, and a cooling water inlet 204 is provided on the other side near the bottom.
[0029] In the first embodiment, the circulating cooling water of the falling film cooler 200 is turned on, and the circulating water inlet temperature is controlled at 10-30°C; in order to control the amount of production water injected into the fine mixer 100, a flow sensor is set at the alkali inlet pipe, the controller is connected to the flow sensor, the production water regulating valve opening is controlled, the production water valve is opened, water is injected into the mixer 100 at the water or alkali liquid inlet 103, and the production water flow rate is controlled to 3m3 / h; in order to control the amount of concentrated sulfuric acid injected into the fine mixer 100, a flow sensor is set at the acid liquid feed port 101, the controller is connected to the flow sensor, the concentrated acid regulating valve opening is controlled, the concentrated sulfuric acid feeding pump is turned on, and the concentrated sulfuric acid is injected into the mixer 100 at the acid liquid feed port 101. Concentrated sulfuric acid is added, and the concentrated sulfuric acid flow rate is controlled to be 1m3 / h; after the concentrated sulfuric acid is distributed by the acid distributor 102 and contacts with the produced water, the mixed acid is fully mixed under the action of the spoiler 106 and the spoiler 105; because the temperature of the mixed liquid reaches above 90°C, the hot mixed acid is discharged into the falling film cooler 200 through the mixed liquid discharge port 104, passes through the falling film distributor 200, and after the liquid passes through the falling film cooler 200 for heat exchange, the prepared dilute sulfuric acid is discharged at the finished product liquid outlet 205, and the temperature of the discharged dilute sulfuric acid is about 30-40°C; in order to prepare dilute acids of different concentrations, the amount of concentrated acid and dilute acid entering the mixer 100 can be flexibly adjusted; dilute acids of different concentrations can be prepared.
[0030] In the second embodiment, the circulating cooling water of the falling film cooler 200 is turned on, and the circulating water inlet temperature is controlled at 10-30°C; in order to control the amount of alkaline production wastewater injected into the fine mixer 100, a flow sensor is set at the water or alkali solution inlet 103, and the controller is connected to the flow sensor to control the opening of the production wastewater regulating valve, open the production wastewater valve, and inject alkaline production wastewater into the mixer 100 at the water or alkali solution inlet 103 to control the production wastewater flow rate to 5m3 / h; turn on the concentrated sulfuric acid feed pump, and in order to control the pH of the treated production wastewater and the amount of dilute acid injected into the mixer 100, a flow sensor is set at the mixed liquid discharge port. A pH sensor is provided at 104, and a controller is connected to the flow sensor to control the opening of the acid regulating valve, and to inject dilute acid into the mixer at the acid liquid feed port 101; the dilute acid is distributed by the acid liquid distributor 102) and contacts the alkaline production wastewater, and the mixed liquid is fully mixed under the action of the spoiler 106 and the spoiler 105; because the temperature of the liquid increases after the acid and alkali neutralization, the hot mixed liquid is discharged through the mixed liquid discharge port 104 into the falling film cooler 200, passes through the falling film distributor 200, and after the liquid undergoes heat exchange in the falling film cooler 200, the neutralized liquid is discharged at the finished liquid outlet 205.
[0031] In summary, the mixing device of the utility model has a simple structure and good stability in use, improves the mixing efficiency of acid and water or alkali, has good applicability and strong practicality.
[0032] Based on the above-mentioned ideal embodiment of the present invention, and in accordance with the above description, relevant personnel can make various changes and modifications without departing from the technical scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, but must be determined according to the scope of the claims.
Claims
1. A liquid continuous mixing device for acid-base reaction, characterized in that: include: A mixer (100) and a falling film cooler (200), wherein the mixer (100) and the falling film cooler (200) are arranged side by side, the mixer (100) is connected to the falling film cooler (200) through a mixed liquid discharge pipe (300), and a plurality of spoilers (106) are arranged on the inner wall of the mixer (100).
2. A liquid continuous mixing device for acid-base reaction according to claim 1, characterized in that: The angle between the spoiler (106) and the inner wall of the mixer (100) is 65 degrees.
3. The liquid continuous mixing device for acid-base reaction according to claim 1, characterized in that: A spoiler (105) is installed in the middle of the spoiler (106).
4. A liquid continuous mixing device for acid-base reaction according to claim 3, characterized in that: The spoiler (105) is in the shape of a hollow tube.
5. A liquid continuous mixing device for acid-base reaction according to claim 4, characterized in that: The surface of the spoiler (105) is provided with turbulent holes arranged at equal intervals.
6. The liquid continuous mixing device for acid-base reaction according to claim 1, characterized in that: An acid liquid feed port (101) is provided on the side wall of the mixer (100), and an acid liquid distributor (102) is installed inside the mixer (100) at the position of the acid liquid feed port (101). The acid liquid distributor (102) includes an extension pipe, and the extension pipe is provided with a plurality of acid liquid discharge holes toward the lower position of the mixer (100).
7. The liquid continuous mixing device for acid-base reaction according to claim 1, characterized in that: The bottom of the mixer (100) is provided with a water or alkali solution inlet (103).
8. The liquid continuous mixing device for acid-base reaction according to claim 1, characterized in that: The top of the mixer (100) is provided with a mixed liquid discharge port (104).
9. A liquid continuous mixing device for acid-base reaction according to claim 8, characterized in that: A mixed liquid feed port (202) is provided on one side of the falling film cooler (200), and the mixed liquid feed port (202) is connected to the mixed liquid discharge port (104) through the mixed liquid discharge pipe (300). A vent (201) is provided on the top of the falling film cooler (200), and a finished liquid outlet (205) is provided on the bottom.
10. The liquid continuous mixing device for acid-base reaction according to claim 1, characterized in that: A cooling water return port (203) is provided on one side of the falling film cooler (200) near the upper portion, and a cooling water inlet (204) is provided on the other side near the lower portion.