CN203598827U - Directly-heated type 4A zeolite crystallization reaction still - Google Patents

Abstract

The utility model discloses a directly-heated type 4A zeolite crystallization reaction still, and relates to the technical field of crystallization reaction equipment. The directly-heated type 4A zeolite crystallization reaction still comprises a discharge pipe, heating micropores, a heater, a crystallization reaction still main body, a crystallization reaction still end socket, a feed opening, a feed opening end socket, a vent hole, an insulating layer, a reaction still cone base and a heating pipe, and is characterized in that the lower part of the crystallization reaction still main body is connected with the reaction still cone base, the upper part of the crystallization reaction still main body is connected with the crystallization reaction still end socket, the bottom of the reaction still cone base is connected with the discharge pipe, one end of the heating pipe in the crystallization reaction still main body is connected with the heater, the outer wall of the heater is provided with the heating micropores, the crystallization reaction still end socket is provided with the feed opening, and the feed opening is connected with the feed opening end socket. The 4A zeolite crystallization heat energy utilization rate is high, and heat is uniformly transferred to the periphery and the bottom of the reaction still from the middle. The directly-heated type 4A zeolite crystallization reaction still has the advantages that heat transfer dead angles are avoided, the structure is simple, the power consumption is low, the mounting is easy and the cost is low.

Description

Direct heating 4A zeolite crystallization reactor

technical field

The direct heating type 4A zeolite crystallization reactor relates to the technical field of crystallization reaction equipment.

Background technique

4A zeolite has a strong calcium exchange capacity, and is an ideal substitute for STPP (sodium tripolyphosphate), a water softener that synthetic detergents tend to cause eutrophication. It is a water softener for the production of environmentally friendly phosphorus-free detergents. The production of 4A zeolite by the hydrothermal total synthesis method is to use sodium silicate, aluminum hydroxide and sodium hydroxide as raw materials through rubber mixing reaction, and then crystallize at 95±3°C for 5-7 hours to obtain 4A zeolite.

The crystallization reaction in the prior art is carried out in a jacketed reaction tank commonly used in chemical industry. The heat transfer area of the jacketed reaction tank is only the tank wall of the reaction tank. The distance between the material in the center of the tank and the wall of the reaction tank is the farthest, and the heat transfer in the reactor is not uniform, which is not conducive to the crystallization reaction. There is no stirring device during the crystallization process, and the heat transfer is uneven, so the temperature near the tank wall reaches the reaction temperature, but the temperature in the center of the tank often cannot reach it. The unbalanced reaction temperature affects the growth uniformity of the crystal grains of 4A zeolite, and then affects the ability to soften water.

The interlayer heat exchange method will cause a large amount of heat to be transferred from the outer wall of the reaction tank to the outer space, and the heat will be lost, resulting in the loss of heat energy.

During the crystallization reaction process, if a blade-type stirrer is used, the material after mixing the rubber is easily crushed due to the shearing action of the stirring blade, which affects the growth and crystallization of 4A zeolite grains, but the crystallization reaction without stirring is affected by the temperature. Affected, the reaction near the heating wall is rapid, and the reaction far away from the heating wall is insufficient, resulting in incomplete crystallization. Moreover, the stirring device driven by the motor generally adopts a cycloidal pinwheel reducer due to the high transmission ratio reducer. This kind of reducer is replaced when there is a fault, resulting in high maintenance and repair costs and large power consumption.

Contents of the invention

In order to overcome a series of defects in the above-mentioned prior art, the purpose of the present application is to provide a method that can make the crystallization of 4A zeolite have a high utilization rate of heat energy, and transfer heat evenly from the middle to the surroundings and the bottom of the tank. Direct-heating 4A zeolite crystallization reactor with no heat transfer dead angle, simple structure, low power consumption, easy installation, and low cost direct-heating 4A zeolite crystallization reactor. In order to achieve the above object, the application adopts the following technical solutions:

Direct heating 4A zeolite crystallization reactor, including discharge pipe 1, heating micropore 2, heater 3, crystallization reactor body 4, crystallization reactor head 5, feed port 6, feed port head 7. Ventilation hole 8, insulation layer 9, reactor cone bottom 10, heating pipe 11, characterized in that: the lower part of the crystallization reactor body 4 is connected to the reactor cone bottom 10, and the upper part of the crystallization reactor body 4 is connected to the crystallization reactor Header 5;

The bottom of the cone bottom 10 of the reaction kettle is connected to the discharge pipe 1;

The heating pipe 11 passes through the bottom side of the reaction kettle cone bottom 10, and one end of the heating pipe 11 in the crystallization reaction kettle main body 4 is connected to the heater 3;

The upper part of the heater 3 is cylindrical, and the lower part is a conical hollow body, and the outer wall of the heater 3 is provided with heating microholes 2;

The head 5 of the crystallization reactor is equipped with a feed port 6 connected to the head 7 of the feed port.

The direct heating type 4A zeolite crystallization reactor is characterized in that the heater 3 is located above the central discharge pipe 1 at the conical bottom 10 of the reactor.

The direct heating type 4A zeolite crystallization reactor is characterized in that: the head 5 of the crystallization reactor is equipped with a ventilation hole 8 .

The direct heating type 4A zeolite crystallization reactor is characterized in that: the main body 4 of the crystallization reactor and the outer wall of the conical bottom 10 of the reactor are provided with an insulating layer 9 .

The direct heating type 4A zeolite crystallization reactor is characterized in that the diameter of the feed port 6 is 250-300 mm.

The direct heating type 4A zeolite crystallization reactor is characterized in that: the diameter of the heating micropore 2 is 1-2 mm.

The direct heating type 4A zeolite crystallization reactor is characterized in that: the diameter of the discharge pipe is 100-150mm.

Beneficial effect

1. Direct heating type 4A zeolite crystallization reactor adopts direct heating, that is, direct heating method, so the heat loss is small and energy is saved;

2. There are heating micropores 2 on the outer wall of the heater 3 of the direct-heating 4A zeolite crystallization reaction kettle. The hot air bubbles emitted from the heating micropores are enough to stir the materials in the reaction kettle without being like The mixing impeller will shear the mixed material, which will affect the crystallization;

3. For the air bubbles bulging from the heating micropore 2, since the upper part of the heater 3 is cylindrical and the lower part is conical, after the air bubbles enter the crystallization kettle, the heating air bubbles in the upper part of the cylinder move laterally, and the heating air bubbles in the lower part are conical Then it moves obliquely downward and reaches the bottom of the direct-heating 4A zeolite crystallization reactor. Due to the buoyancy of the liquid phase material in the reaction system and the material resistance, it gradually rises from the bottom of the direct-heating 4A zeolite crystallization reactor. The heating dead angle is left, the temperature gradient in the whole reactor is very small, and the reaction is uniform;

Heating while heating the air bubbles to micro-stir the reaction system, saving the power of dynamic stirring.

The direct heating type 4A zeolite crystallization reactor has simple structure and low cost.

Description of drawings

Figure 1: Schematic diagram of direct heating 4A zeolite crystallization reactor;

Figure 2: Enlarged view of the heater;

In the figure: 1 discharge pipe, 2 heating microholes, 3 heater, 4 main body of crystallization reactor, 5 head of crystallization reactor, 6 inlet, 7 header of inlet, 8 air hole, 9 heat preservation layer, 10 reactor cone bottoms, 11 heating tubes.

Detailed ways

Example 1

Direct heating 4A zeolite crystallization reactor, including discharge pipe 1, heating micropore 2, heater 3, crystallization reactor body 4, crystallization reactor head 5, feed port 6, feed port head 7. Ventilation hole 8, insulation layer 9, reactor cone bottom 10, heating pipe 11, characterized in that: the lower part of the crystallization reactor body 4 is connected to the reactor cone bottom 10, and the upper part of the crystallization reactor body 4 is connected to the crystallization reactor Header 5;

The bottom of the cone bottom 10 of the reaction kettle is connected to the discharge pipe 1;

The heating pipe 11 passes through the bottom side of the reaction kettle cone bottom 10, and one end of the heating pipe 11 in the crystallization reaction kettle main body 4 is connected to the heater 3;

The upper part of the heater 3 is cylindrical, and the lower part is a conical hollow body, and the outer wall of the heater 3 is provided with heating microholes 2;

The head 5 of the crystallization reactor is equipped with a feed port 6 connected to the head 7 of the feed port.

The direct heating type 4A zeolite crystallization reactor is characterized in that the heater 3 is located above the central discharge pipe 1 at the conical bottom 10 of the reactor.

The direct heating type 4A zeolite crystallization reactor is characterized in that: the head 5 of the crystallization reactor is equipped with a ventilation hole 8 .

The direct heating type 4A zeolite crystallization reactor is characterized in that: the main body 4 of the crystallization reactor and the outer wall of the conical bottom 10 of the reactor are provided with an insulating layer 9 .

The direct heating type 4A zeolite crystallization reactor is characterized in that the diameter of the feed port 6 is 250 mm.

The direct heating type 4A zeolite crystallization reaction kettle is characterized in that the diameter of the heating micropore 2 is 1mm.

The direct heating type 4A zeolite crystallization reaction kettle is characterized in that the diameter of the discharge pipe is 100 mm.

Example 2

Direct heating 4A zeolite crystallization reactor, including discharge pipe 1, heating micropore 2, heater 3, crystallization reactor body 4, crystallization reactor head 5, feed port 6, feed port head 7. Ventilation hole 8, insulation layer 9, reactor cone bottom 10, heating pipe 11, characterized in that: the lower part of the crystallization reactor body 4 is connected to the reactor cone bottom 10, and the upper part of the crystallization reactor body 4 is connected to the crystallization reactor Header 5;

The bottom of the cone bottom 10 of the reaction kettle is connected to the discharge pipe 1;

The heating pipe 11 passes through the bottom side of the reaction kettle cone bottom 10, and one end of the heating pipe 11 in the crystallization reaction kettle main body 4 is connected to the heater 3;

The upper part of the heater 3 is cylindrical, and the lower part is a conical hollow body, and the outer wall of the heater 3 is provided with heating microholes 2;

The head 5 of the crystallization reactor is equipped with a feed port 6 connected to the head 7 of the feed port.

The direct heating type 4A zeolite crystallization reactor is characterized in that the heater 3 is located above the central discharge pipe 1 at the conical bottom 10 of the reactor.

The direct heating type 4A zeolite crystallization reactor is characterized in that: the head 5 of the crystallization reactor is equipped with a ventilation hole 8 .

The direct heating type 4A zeolite crystallization reactor is characterized in that: the main body 4 of the crystallization reactor and the outer wall of the conical bottom 10 of the reactor are provided with an insulating layer 9 .

The direct heating type 4A zeolite crystallization reactor is characterized in that the diameter of the feed port 6 is 275mm.

The direct heating type 4A zeolite crystallization reaction kettle is characterized in that the diameter of the heating micropore 2 is 1 mm.

The direct heating type 4A zeolite crystallization reaction kettle is characterized in that the diameter of the discharge pipe is 125 mm.

Example 3

Direct heating 4A zeolite crystallization reactor, including discharge pipe 1, heating micropore 2, heater 3, crystallization reactor body 4, crystallization reactor head 5, feed port 6, feed port head 7. Ventilation hole 8, insulation layer 9, reactor cone bottom 10, heating pipe 11, characterized in that: the lower part of the crystallization reactor body 4 is connected to the reactor cone bottom 10, and the upper part of the crystallization reactor body 4 is connected to the crystallization reactor Header 5;

The bottom of the cone bottom 10 of the reaction kettle is connected to the discharge pipe 1;

The heating pipe 11 passes through the bottom side of the reaction kettle cone bottom 10, and one end of the heating pipe 11 in the crystallization reaction kettle main body 4 is connected to the heater 3;

The upper part of the heater 3 is cylindrical, and the lower part is a conical hollow body, and the outer wall of the heater 3 is provided with heating microholes 2;

The head 5 of the crystallization reactor is equipped with a feed port 6 connected to the head 7 of the feed port.

The direct heating type 4A zeolite crystallization reactor is characterized in that the heater 3 is located above the central discharge pipe 1 at the conical bottom 10 of the reactor.

The direct heating type 4A zeolite crystallization reactor is characterized in that: the head 5 of the crystallization reactor is equipped with a ventilation hole 8 .

The direct heating type 4A zeolite crystallization reactor is characterized in that: the main body 4 of the crystallization reactor and the outer wall of the conical bottom 10 of the reactor are provided with an insulating layer 9 .

The direct heating type 4A zeolite crystallization reactor is characterized in that the diameter of the feed port 6 is 300mm.

The direct heating type 4A zeolite crystallization reactor is characterized in that: the diameter of the heating micropore 2 is 2 mm.

The direct heating type 4A zeolite crystallization reaction kettle is characterized in that the diameter of the discharge pipe is 150 mm.

Claims (7)

1. directly-heated type 4A zeolite crystallization reactor, comprise discharge nozzle, heating micropore, heater, crystallization still main body, crystallization still end socket, charging aperture, charging aperture end socket, passage, heat-insulation layer, the reactor cone end, heating tube, it is characterized in that: the crystallization still lower body part coupled reaction still cone end, crystallization still main body top connects crystallization still end socket;

Bottom, the reactor cone end connects discharge nozzle;

Heating tube is through reactor cone end bottom side, and heating tube one end in crystallization still main body connects heater;

Heater top is cylindrical, and bottom is conical ducted body, has heating micropore on the outer wall of heater;

On crystallization still end socket, charging aperture is housed, charging aperture connects charging aperture end socket.

2. directly-heated type 4A zeolite crystallization reactor as claimed in claim 1, is characterized in that: heater is positioned at reactor cone end central authorities discharge nozzle top.

3. directly-heated type 4A zeolite crystallization reactor as claimed in claim 1, is characterized in that: on crystallization still end socket, passage is housed.

4. directly-heated type 4A zeolite crystallization reactor as claimed in claim 1, is characterized in that: crystallization still main body and reactor cone end outer wall are equipped with heat-insulation layer.

5. directly-heated type 4A zeolite crystallization reactor as claimed in claim 1, is characterized in that: described charging aperture is that diameter is 250～300mm.

6. directly-heated type 4A zeolite crystallization reactor as claimed in claim 1, is characterized in that: heating micropore size is 1～2mm.

7. directly-heated type 4A zeolite crystallization reactor as claimed in claim 1, is characterized in that: discharge nozzle caliber is 100～150mm.

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