CN108295795B - A low-loss stirring reactor heated by heat conduction oil - Google Patents

Abstract

The invention discloses a low-loss stirring reaction kettle heated by heat conduction oil, which comprises a kettle body, a sandwich plate, a heating oil circulation device and a cooling water tank. A stirring shaft is installed in rotation in the kettle body, and a blade fixing ring is sleeved on the stirring shaft. The blade fixing ring is connected with short blades and long blades; an oil storage layer is formed between the kettle body and the interlayer plate, and the oil storage layer is filled with heat transfer oil, and a thermal oil coil is laid in the oil storage layer, and the two ends of the thermal oil coil are connected to the The heating oil circulation device is connected, and a cooling liquid coil is laid in the oil storage layer. The low-loss stirring reaction kettle heated by heat conduction oil according to the present invention can stir the materials evenly during operation, which is conducive to the rapid and sufficient reaction. The temperature can be quickly adjusted, and at the same time, the temperature change can be made more moderate by indirectly heating the heat transfer oil in the oil reservoir.

Description

A low-loss stirring reactor heated by heat conduction oil

technical field

The invention belongs to the field of chemical production machinery and equipment, and in particular relates to a low-loss stirring reaction kettle heated by heat conduction oil.

Background technique

Reactor is one of the most common production machinery in chemical production. It is used as a reaction vessel for chemical raw materials. By changing the conditions inside the reactor, the reaction will proceed in the direction that people expect. There will be some differences according to the different materials produced. Structural adjustments, but its main structure is consistent with the production principle.

The reaction kettle is used as a reaction vessel for producing raw materials. Before the reaction is carried out or at a certain stage during the reaction, the reaction kettle needs to be heated to promote the reaction. The use of heat transfer oil to heat the reaction kettle has the characteristics of corrosion resistance, fast heating speed and high heating temperature. High characteristics, but at the same time, due to the low specific heat capacity of the heat transfer oil, the temperature changes greatly, and the temperature control is not timely enough during work, which often brings unexpected troubles. At the same time, when the reactor is working, in order to promote the reaction. In the process of stirring, the raw materials are fully mixed. In order to ensure the uniformity of mixing, the speed and direction of rotation of the stirring shaft are often changed during stirring. This stirring method will cause serious damage to the motor, stirring shaft and coupling. A large burden will cause the deformation of the stirring shaft for a long time. In order to solve this problem, the present invention provides the following technical solutions.

Contents of the invention

The object of the present invention is to provide a low-loss stirring reactor heated by heat conduction oil.

The purpose of the present invention can be achieved through the following technical solutions:

A low-loss stirring reaction kettle heated by heat conduction oil, including a kettle body, a sandwich plate, a heating oil circulation device, and a cooling water tank. A stirring shaft is installed in rotation in the kettle body, and a blade fixing ring is sleeved on the stirring shaft, and the blade is fixed Short blades and long blades are connected on the ring;

The stirring shaft includes a short-diameter shaft and a long-diameter shaft, the short-diameter shaft and the long-diameter shaft are connected alternately, two first fixed pieces are installed on the short-diameter shaft, and fixed screw holes are opened on the first fixed piece;

The blade fixing ring includes a ring frame, and the two ends of the ring frame are connected with a second fixed piece through a spring, and a fixing screw hole is opened on the second fixed piece, and the two ring frames are sleeved on the short-diameter shaft, and the bolts are used to connect The second fixed piece is fixed together with the first fixed piece;

An oil storage layer is formed between the kettle body and the interlayer plate, the oil storage layer is filled with heat transfer oil, and a hot oil coil is laid in the oil storage layer, and the two ends of the hot oil coil are connected to the heating oil circulation device;

The heating oil circulation device includes a heating tank, a thermal oil storage tank and a gas booster pump. The heating tank and the thermal oil storage tank are connected through an oil guide pipe. A heating device is arranged in the heating tank, and the thermal oil storage tank is connected to the gas booster pump. Pass;

A cooling liquid coil is laid in the oil storage layer, and the two ends of the cooling liquid coil are respectively connected to the cooling water tank through a liquid inlet pipe and a liquid outlet pipe.

As a further solution of the present invention, the long-diameter shaft has a limiting circular groove on the end connected to the short-diameter shaft, and the circular ring frame is provided with a ring protrusion, and the circular ring protrusion is inserted into the limiting circular groove .

As a further solution of the present invention, the installation height of the heating tank is greater than that of the thermal oil storage tank.

As a further solution of the present invention, one end of the thermal oil coil is connected to the thermal oil storage tank through an oil inlet pipe, and the other end of the thermal oil coil is connected to the heating tank through an oil outlet pipe.

As a further solution of the present invention, a spoiler is installed on the inner wall of the kettle body, and a wavy groove is opened on the spoiler.

As a further solution of the present invention, the working method of the heating oil circulation device is as follows: first heat the heat conduction oil through the heating tank, after the heating is completed, open the valve on the oil guide pipe to import the heat oil into the heat oil storage tank, Close the valve on the oil guide pipe, open the valve on the oil inlet pipe, input high-pressure gas into the thermal oil storage tank through the gas booster pump, input high-temperature heat transfer oil into the thermal oil coil, and heat the oil in the oil storage layer through the thermal oil coil. heat transfer oil.

Beneficial effects of the present invention: the low-loss stirring reaction kettle heated by heat conduction oil according to the present invention can stir the materials evenly during operation, which is conducive to the rapid and full progress of the reaction. The temperature in the kettle body can be quickly adjusted according to the needs, and at the same time, the temperature change is made more moderate by indirectly heating the heat transfer oil in the oil reservoir.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings.

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the structural representation of stirring shaft;

Fig. 3 is a schematic structural view of the blade fixing ring.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

A low-loss stirring reaction kettle heated by heat conduction oil, as shown in Figure 1, includes a kettle body 1, a sandwich plate 6, a heating oil circulation device and a cooling water tank 2, and the kettle body 1 is provided with a feed port 11 and a discharge port port 12, the stirring shaft 7 is installed in the rotation of the kettle body 1, the stirring shaft 7 is connected with the drive motor 71 through a coupling 72, the stirring shaft 7 is sleeved with a blade fixing ring 8, and the blade fixing ring 8 is connected There are short blades 81 and long blades 82. By connecting blades with different lengths on the blade fixing ring 8, stirring turbulence can be generated, and there is sufficient mixing with the reaction raw materials.

As shown in Figure 2, the stirring shaft 7 includes a short diameter shaft 73 and a long diameter shaft 76, the short diameter shaft 73 and the long diameter shaft 76 are connected alternately, and two first fixing pieces 75 are installed on the short diameter shaft 73, the first A fixing piece 75 is provided with a fixing screw hole, and the long-diameter shaft 76 has a limiting circular groove 74 on one end connected to the short-diameter shaft 73; as shown in Figure 3, the blade fixing ring 8 includes a ring frame 83, The two ends of ring frame 83 are connected with second fixed piece 86 by spring 85, have fixing screw hole on the second fixed piece 86, also be provided with ring protrusion 84 on the ring frame 83, during installation, two The ring frame 83 is sleeved on the short-diameter shaft 73, and the two second fixing pieces 86 and the first and first fixing pieces 75 are fixed together by bolts, and the ring protrusion 84 is inserted into the limiting circular groove 74. During work, In order to mix evenly, the stirring shaft 7 will change the rotating speed and direction of rotation under the drive of the driving motor 71. At this time, the spring 85 will play a buffering role on the blades and the shaft coupling 72, so as to reduce the speed of the stirring shaft 7 when the speed changes suddenly or When the direction of rotation changes suddenly, the force suffered by the blades, the shaft coupling 72 and other devices reduces the deformation loss of the devices.

An interlayer plate 6 is installed on the outer surface of the kettle body 1, and an oil storage layer 63 is formed between the kettle body 1 and the interlayer plate 6. The oil storage layer 63 is filled with heat-conducting oil as a heat-conducting layer, and the oil storage layer 63 is also laid with thermal oil. Coil 61, the two ends of the hot oil coil 61 are connected with the heating oil circulation device.

The heating oil circulation device includes a heating tank 3, a thermal oil storage tank 4 and a gas booster pump 5, wherein the heating tank 3 and the thermal oil storage tank 4 are communicated through an oil guide pipe 32, and a valve is arranged on the oil guide pipe 32, and the heating tank 3 A heating device is installed inside, and the heat transfer oil is heated by the heating device. The installation height of the heating tank 3 is higher than that of the thermal oil storage tank 4, so that the heat transfer oil in the heating tank 3 can directly flow into the thermal oil storage tank 4 under the action of gravity , the hot oil storage tank 4 is connected to the gas booster pump 5, the hot oil storage tank 4 is connected to one end of the hot oil coil 61 through the oil inlet pipe 41, and the heating tank 3 is connected to the hot oil coil through the oil outlet pipe 31 The other end of the pipe 61 is connected. During work, the heat transfer oil is first heated by the heating tank 3. After the heating is completed, the valve on the oil guide pipe 32 is opened to import the hot oil into the thermal oil storage tank 4, and the valve on the oil guide pipe 32 is closed. Open the valve on the oil inlet pipe 41, input high-pressure gas into the thermal oil storage tank 4 through the gas booster pump 5, input the high-temperature heat transfer oil into the thermal oil coil 61, and heat the heat transfer oil in the oil storage layer 63 through the thermal oil coil 61 , so as to realize the heating of the still body 1.

The oil storage layer 63 is also laid with a cooling liquid coil 62, and the two ends of the cooling liquid coil 62 are respectively connected to the cooling water tank 2 through the liquid inlet pipe 21 and the liquid outlet pipe 22, and the circulating cooling water is supplied through the cooling water tank 2. The heat transfer oil in the oil storage layer 63 is cooled down.

As a further solution of the present invention, a spoiler 13 is installed on the inner wall of the kettle body 1, and a wavy groove is opened on the spoiler 13. When the reaction kettle is a liquid raw material, during the stirring process, the liquid Under the influence of wavy grooves, the raw materials will show irregular flow, which is conducive to the full mixing of raw materials.

The heat-conducting oil heating and low-loss stirring reactor described in the present invention can stir the materials evenly during operation, which is conducive to the rapid and sufficient reaction. The temperature in the kettle body 1 is quickly adjusted, and at the same time, the temperature change is made more moderate by indirectly heating the heat transfer oil in the oil storage layer 63 .

The preferred embodiments of the invention disclosed above are only to help illustrate the invention. The preferred embodiments are not exhaustive in all detail, nor are the inventions limited to specific embodiments described. Obviously, many modifications and variations can be made based on the contents of this specification. This description selects and specifically describes these embodiments in order to better explain the principle and practical application of the present invention, so that those skilled in the art can well understand and utilize the present invention. The invention is to be limited only by the claims, along with their full scope and equivalents.

Claims (4)

1. The utility model provides a conduction oil heating low-loss stirring reaction kettle which is characterized by comprising a kettle body (1), a sandwich plate (6), a heating oil circulation device and a cooling water tank (2), wherein a stirring shaft (7) is rotationally arranged in the kettle body (1), a blade fixing ring (8) is sleeved on the stirring shaft (7), and a short blade (81) and a long blade (82) are connected on the blade fixing ring (8);

the stirring shaft (7) comprises a short-diameter shaft (73) and a long-diameter shaft (76), the short-diameter shaft (73) and the long-diameter shaft (76) are connected in a staggered mode, two first fixing plates (75) are arranged on the short-diameter shaft (73), and fixing screw holes are formed in the first fixing plates (75);

the blade fixing ring (8) comprises a ring frame (83), two ends of the ring frame (83) are connected with a second fixing piece (86) through springs (85), fixing screw holes are formed in the second fixing piece (86), the two ring frames (83) are sleeved on the short-diameter shaft (73), and the second fixing piece (86) and the first fixing piece (75) are fixed together through bolts;

an oil storage layer (63) is formed between the kettle body (1) and the sandwich plate (6), the oil storage layer (63) is filled with heat conduction oil, a hot oil coil pipe (61) is paved in the oil storage layer (63), and two ends of the hot oil coil pipe (61) are communicated with a heating oil circulation device;

the heating oil circulation device comprises a heating tank (3), a hot oil storage tank (4) and a gas booster pump (5), wherein the heating tank (3) is communicated with the hot oil storage tank (4) through an oil guide pipe (32), the heating tank (3) is internally provided with the heating device, and the hot oil storage tank (4) is communicated with the gas booster pump (5);

a cooling liquid coil pipe (62) is paved in the oil storage layer (63), and two ends of the cooling liquid coil pipe (62) are respectively communicated with the liquid outlet pipe (22) and the cooling water tank (2) through a liquid inlet pipe (21);

a limiting circular groove (74) is formed in one end, connected with the short diameter shaft (73), of the long diameter shaft (76), a circular ring protrusion (84) is arranged on the circular ring frame (83), and the circular ring protrusion (84) is inserted into the limiting circular groove (74);

a spoiler (13) is arranged on the inner wall of the kettle body (1), and a wavy groove is formed in the spoiler (13).

2. The conduction oil heating low-loss stirred tank reactor according to claim 1, wherein the installation height of the heating tank (3) is greater than the installation height of the hot oil storage tank (4).

3. The conduction oil heating low-loss stirring reaction kettle according to claim 1, wherein one end of the hot oil coil pipe (61) is communicated with the hot oil storage tank (4) through an oil inlet pipe (41), and the other end of the hot oil coil pipe (61) is communicated with the heating tank (3) through an oil outlet pipe (31).

4. The conduction oil heating low-loss stirring reaction kettle according to claim 1, wherein the working method of the heating oil circulation device is as follows: firstly, heating conduction oil through a heating tank (3), after heating is completed, opening a valve on an oil guide pipe (32) to guide the conduction oil into a thermal oil storage tank (4), closing the valve on the oil guide pipe (32), opening a valve on an oil inlet pipe (41), inputting high-pressure gas into the thermal oil storage tank (4) through a gas booster pump (5), inputting high-temperature conduction oil into a thermal oil coil pipe (61), and heating the conduction oil in an oil storage layer (63) through the thermal oil coil pipe (61).

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