Static feeding mixing reactor

Abstract

The utility model relates to the technical field of reactors, in particular to a static feeding and mixing reactor which comprises a shell and a mixer, the shell is mounted on the ground through a support, the mixer is arranged in the shell and comprises a circular mixing pipe, a material inlet and a nitrogen inlet are formed in one side of the circular mixing pipe, and the nitrogen inlet is communicated with the circular mixing pipe. The material inlet and the nitrogen inlet are connected with a feeding pipe and a nitrogen purging pipe respectively, a flow limiting device and a check valve are arranged on the two sides of the material inlet and the two sides of the nitrogen inlet respectively, a material-gas through hole is formed in the flow limiting device, a plurality of liquid suction holes are formed in the end, close to the nitrogen inlet, of the flow limiting device, and a spiral lining is arranged between the flow limiting device and the check valve. And a plurality of material gas nozzles are arranged on the outer wall of the circular mixing pipe at one section of the spiral lining. According to the static feeding mixing reactor provided by the utility model, common mechanical stirring equipment is replaced by the mixer, so that the whole structure is simpler, mechanical movement basically does not exist, mechanical faults can be greatly avoided, and orderly production is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of reactors, in particular to a static feeding mixing reactor. Background Art

[0002] Reactors are usually used in research and applications such as microbial fermentation and chemical synthesis. The commonly used reactor is the stirred tank reactor, which is mainly composed of an agitator and a tank body. The agitator includes a transmission device, a stirring shaft and an impeller.

[0003] However, the structure of the stirred tank reactor is relatively complex, and the probability of mechanical failure is greatly increased. The long-term operation of the agitator will affect the airtightness of the reactor, and the use of the agitator will increase the cost of electricity use. Utility Model Content

[0004] In view of the above problems, the utility model provides a static feeding mixing reactor to solve the problems of the reactor in the prior art, such as complex structure, easy mechanical failure, easily affected air tightness, and rising electricity costs.

[0005] To achieve the above object, the utility model provides a static feeding mixing reactor, comprising a shell and a mixer, wherein the shell is installed on the ground through a bracket, and the mixer is arranged in the shell;

[0006] The mixer comprises a circular mixing tube, a material inlet and a nitrogen inlet are provided on one side of the circular mixing tube, the material inlet and the nitrogen inlet are respectively connected to a feed pipe and a nitrogen purge pipe, a flow limiting device and a check valve are provided on both sides of the material inlet and the nitrogen inlet, a material gas through hole is provided in the flow limiting device, a plurality of liquid suction holes are provided between a straight pipe section of the flow limiting device and the nitrogen inlet, a spiral lining is provided between the flow limiting device and the check valve, a plurality of material gas nozzles are provided on the outer wall of the circular mixing tube of a section of the spiral lining, and the material gas nozzles are distributed from sparse to dense along the liquid flow direction in the circular mixing tube.

[0007] Furthermore, a pressure transmitter is connected to the top of the shell, and a feed port and a pressure relief port are also provided at the top of the shell, and a pneumatic regulating valve is provided on the pressure relief port.

[0008] Furthermore, a feed valve is provided on the feed pipe, and an air intake valve is provided on the nitrogen purge pipe.

[0009] Furthermore, a heat-insulating jacket is arranged on the outside of the shell, and the upper part and the lower part of the heat-insulating jacket are respectively connected with a water outlet and a water inlet.

[0010] Furthermore, a discharge port is connected to the bottom end of the shell, a support seat is provided at the bottom of the shell, and the circular mixing pipe is provided on the support seat.

[0011] Furthermore, the pressure transmitter is electrically connected to the air intake valve and the pneumatic regulating valve.

[0012] Beneficial effects of the utility model:

[0013] The static feeding mixing reactor provided by the utility model adopts a mixer to replace the commonly used mechanical stirring equipment, and the overall structure is simpler, and there is basically no mechanical movement, which can greatly avoid mechanical failures and ensure orderly production;

[0014] The utility model provides a flow limiting device in a circular mixing tube, and the flow rate of the material or gas is increased when passing through the material and gas through hole in the flow limiting device, and due to the influence of the subsequent continuous injection of the material or gas, the material or gas can still maintain a certain speed increase even after passing through the material and gas through hole, so that the material or gas has more impact when ejected from the material and gas nozzle, and the mixing effect of the raw materials in the reactor is improved; a liquid suction hole is also provided at one end of the flow limiting device, and when the material or gas passes through the material and gas through hole, the flow rate increases but the pressure decreases, and the liquid outside the mixer is sucked into the mixer through the liquid suction hole, and then fully mixed with the material in the mixer, so that the material mixing is more uniform;

[0015] The utility model can make the material or nitrogen rotate through the spiral lining, so that the material has a higher initial velocity when it is ejected from the material gas nozzle, and has the ability to eject in multiple directions, which can ensure the mixing effect of the reactor material;

[0016] The utility model is provided with a check valve on the circular mixing pipe, and the check valve is used to allow the material or gas that fails to be ejected in time to circulate in the circular mixing pipe, thereby ensuring the orderly operation of the mixer;

[0017] In the utility model, the pressure transmitter is electrically connected with the air intake pneumatic regulating valve and the pressure relief pneumatic regulating valve, and the nitrogen intake amount can be automatically adjusted according to the storage tank pressure. When the storage tank pressure drops, the nitrogen regulating valve opens wider and the mixing effect is enhanced. When the storage tank pressure is high, the nitrogen intake amount is reduced. While adjusting the pressure in the storage tank, the nitrogen intake amount can be adjusted by changing the pressure setting value to meet different mixing effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the utility model, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 The overall structure diagram of the reactor;

[0020] Figure 2 is the structure diagram of the mixer;

[0021] Figure 3 is a cross-sectional view of the mixer;

[0022] Wherein: 1-shell, 11-pressure transmitter, 12-feed port, 13-pressure relief port, 14-insulation jacket, 15-water outlet, 16-water inlet, 2-mixer, 21-circular mixing tube, 221-material inlet, 222-nitrogen inlet, 23-current limiting device, 231-material gas through hole, 232-liquid suction hole, 24-check valve, 25-spiral lining, 26-material gas nozzle, 3-feed pipe, 31-feed valve, 4-nitrogen purge pipe, 41-inlet valve. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In a specific embodiment of the present invention, Figures 1 to 3 As shown, a static feeding mixing reactor comprises a shell 1 and a mixer 2, wherein the shell 1 is installed on the ground through a bracket, and the mixer 2 is arranged in the shell 1;

[0025] The mixer 2 includes a circular mixing tube 21, a material inlet 221 and a nitrogen inlet 222 are provided on one side of the circular mixing tube 21, the material inlet 221 and the nitrogen inlet 222 are respectively connected to a feed pipe 3 and a nitrogen purge pipe 4, a feed valve 31 is provided on the feed pipe 3, and an intake valve 41 is provided on the nitrogen purge pipe 4, a flow limiting device 23 and a check valve 24 are provided on both sides of the material inlet 221 and the nitrogen inlet 222, a material gas through hole 231 is provided in the flow limiting device 23, a plurality of liquid suction holes 232 are provided between the straight pipe section of the flow limiting device 23 and the nitrogen inlet 222, a spiral lining 25 is provided between the flow limiting device 23 and the check valve 24, and a plurality of material gas nozzles 26 are provided on the outer wall of the circular mixing tube 21 of a section of the spiral lining 25, and the material gas nozzles 26 are distributed from sparse to dense along the liquid flow direction in the circular mixing tube 21.

[0026] A pressure transmitter 11 is connected to the top of the shell 1. A feed port 12 and a pressure relief port 13 are also provided at the top of the shell 1. A pneumatic regulating valve is provided on the pressure relief port 13. The pressure transmitter 11 is electrically connected to the air inlet valve 41 and the pneumatic regulating valve. An insulation jacket 14 is provided on the outside of the shell 1. The upper and lower parts of the insulation jacket 14 are respectively connected to a water outlet 15 and a water inlet 16. The bottom end of the shell 1 is connected to a feed port 17. A support seat 18 is provided at the bottom of the shell 1, and a circular mixing tube 21 is provided on the support seat 18.

[0027] The use process of this utility model:

[0028] During the production process, part of the material is first injected into the reactor through the feed port 12, and then other materials are injected into the reactor through the feed pipe 3. When the material passes through the material gas through hole 231, the speed increases and the pressure decreases. The material in the reactor is sucked into the circular mixing tube 21 through the suction hole 232, and the material is fully mixed. After passing through the material gas through hole 231 and the spiral liner 25, the material is ejected through the material gas nozzle 26, so that the material in the reactor and the newly injected material are fully moved and mixed; while injecting the material through the feed pipe 3, a small amount of high-pressure nitrogen can also be introduced through the nitrogen purge pipe 4 at the same time to increase the flow speed of the material and the ability to stir the movement of the material in the reactor; when it is not necessary to inject the material but to stir the material, the material can be fully stirred and mixed only by introducing nitrogen; the pressure transmitter 11 checks the pressure in the reactor and can close the air inlet valve 41 in time, and the pressure is vented through the pneumatic regulating valve. At the same time, the nitrogen intake amount can be automatically adjusted by setting the pressure value to control the mixing effect of the materials. According to the difference between the density of the material in the feed pipe 3 and the density of the material in the original reactor, the position of the material gas nozzle 26 can be changed by replacing a different circular mixing tube 21, and the direction of the material gas nozzle 26 can be adjusted. When the density of the material in the feed pipe 3 is lower than that of the material in the original reactor, the position of the material gas nozzle 26 can be set as much as possible on the lower side of the circular mixing tube 21. Conversely, the position of the material gas nozzle 26 can be set as much as possible on the upper side of the circular mixing tube 21 to ensure the mixing effect of the two materials.

[0029] Except for special instructions and further limitation of one preferred or optional technical means as another technical means, the preferred and optional technical means disclosed in the utility model can be arbitrarily combined to form several different technical solutions. Therefore, equivalent changes made according to the claims are still within the scope covered by the utility model.

Claims

1. A static feed mixing reactor, characterized in that: It comprises a housing (1) and a mixer (2), wherein the housing (1) is installed on the ground via a bracket, and the mixer (2) is arranged inside the housing (1); The mixer (2) comprises a circular mixing tube (21), one side of the circular mixing tube (21) is provided with a material inlet (221) and a nitrogen inlet (222), the material inlet (221) and the nitrogen inlet (222) are respectively connected to a feed pipe (3) and a nitrogen purge pipe (4), a flow limiting device (23) and a check valve (24) are arranged on both sides of the material inlet (221) and the nitrogen inlet (222), and a material inlet (221) and a nitrogen inlet (222) are arranged in the flow limiting device (23). A gas through hole (231) is provided, a plurality of liquid suction holes (232) are provided between the straight pipe section of the flow limiting device (23) and the nitrogen inlet (222), a spiral lining (25) is provided between the flow limiting device (23) and the check valve (24), a plurality of material gas nozzles (26) are provided on the outer wall of the circular mixing tube (21) of a section of the spiral lining (25), and the material gas nozzles (26) are distributed from sparse to dense along the liquid flow direction in the circular mixing tube (21).

2. A static feed mixing reactor according to claim 1, characterized in that: The top end of the shell (1) is connected to a pressure transmitter (11), and the top end of the shell (1) is also provided with a feed port (12) and a pressure relief port (13), and the pressure relief port (13) is provided with a pneumatic regulating valve.

3. A static feed mixing reactor according to claim 2, characterized in that: The feed pipe (3) is provided with a feed valve (31), and the nitrogen purge pipe (4) is provided with an air intake valve (41).

4. A static feed mixing reactor according to claim 1, characterized in that: A heat-insulating jacket (14) is arranged outside the shell (1), and the upper part and the lower part of the heat-insulating jacket (14) are respectively connected to a water outlet (15) and a water inlet (16).

5. A static feed mixing reactor according to claim 1, characterized in that: The bottom end of the shell (1) is connected to a discharge port (17), a support seat (18) is provided at the bottom of the shell (1), and the circular mixing pipe (21) is provided on the support seat (18).

6. A static feed mixing reactor according to claim 3, characterized in that: The pressure transmitter (11) is electrically connected to the air inlet valve (41) and the pneumatic regulating valve respectively.

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