A chemical production evaporation equipment

Abstract

The invention discloses a chemical production evaporation device, which relates to the field of evaporation devices and comprises a tank body, wherein the bottom of the tank body is provided with a discharge port, the side of the tank body is provided with a feed port, the top of the tank body is provided with a tank cover which is conically raised upward, the top of the raised tank cover is provided with a ring cylinder, the wall of the tank cover is provided with an air guide layer which surrounds the tank cover, the bottom surface of the tank cover is evenly distributed with a plurality of grid openings which penetrate the air guide layer, the periphery of the tank cover is provided with a ring tube which is connected to the bottom end of the air guide layer, an air duct is provided in the wall of the tank cover above the air guide layer, the bottom of the air duct penetrates the edge of the tank cover, the top of the air duct penetrates the ring cylinder, a fan blade is rotatably provided in the ring cylinder, the material vapor generated by evaporation of the invention is evenly introduced into the air guide layer through the grid opening, the airflow driven by the fan blade penetrates the air duct to take away the heat in the air guide layer, the overall temperature of the material in the air guide layer is reduced so that the material partially forms liquid, the heat exchange pressure of the subsequent condensation device is greatly relieved, and the structure of the condensation device is helped to simplify and reduce the condensation power consumption.

Description

Technical Field

[0001] The invention relates to the field of evaporation equipment, in particular to a chemical production evaporation equipment. Background Art

[0002] The concentration and purification of industrial materials or the extraction of volatiles are mostly achieved by evaporation equipment. The material is heated through a closed evaporation device, so that the water or other volatile substances rich in the material absorb heat and vaporize to form steam, and then the steam is discharged and condensed to form liquid. The concentration of residual materials in the evaporation equipment increases, and the substances volatilized by heat are condensed and recovered.

[0003] The condensing device configured outside the traditional evaporation device conducts the evaporated material through a tortuous pipe distribution, lowers the temperature of the low-temperature medium by contacting the pipe, and cools the evaporated material to form a liquid. Since the evaporated material carries a large amount of heat, a long heat exchange pipe is required for complete condensation and recovery, and the low-temperature medium needs to have a high flow rate, which leads to the problems of high structural complexity of the condensing equipment and high heat exchange power consumption. Summary of the invention

[0004] In order to make up for the deficiencies of the prior art problems, the purpose of the present invention is to provide a chemical production evaporation equipment, which is used to solve the problems of high heat exchange power consumption required for the condensation part of the traditional evaporation equipment to fully recover the evaporated substances, and the high structural complexity of the condensation equipment due to ensuring a longer heat exchange path.

[0005] In order to solve the problems of the prior art, the technical solution of the present invention is as follows:

[0006] A chemical production evaporation device comprises a tank body, wherein the bottom of the tank body is provided with a discharge port, the side of the tank body is provided with a feed port, the top of the tank body is provided with a tank cover which is raised in an upward conical shape, the top of the raised tank cover is provided with an annular cylinder, the wall of the tank cover is provided with an air guide layer which surrounds the tank cover, the bottom surface of the tank cover is evenly distributed with a number of grid openings which penetrate the air guide layer, the periphery of the tank cover is provided with an annular tube which is connected to the bottom end of the air guide layer, an air duct is provided in the wall of the tank cover above the air guide layer, the bottom of the air duct penetrates the edge of the tank cover, the top of the air duct penetrates the annular cylinder, a fan blade is rotatably provided in the annular cylinder, the fan blade is connected with a motor for driving the fan blade to rotate, and the rotating fan blade is used to drive the airflow in the air duct to converge into the annular cylinder and be conducted upward.

[0007] Preferably, the two side edges of the gate opening have warped edges that are bent into the air guide layer, so that a collecting channel is formed between adjacent gate openings.

[0008] Preferably, there are a plurality of air ducts, and the air ducts are distributed in a ring around the tank cover, and the air ducts are aligned with the collecting ducts and staggered with the grille openings.

[0009] Preferably, the top of the air guide layer has a downward raised surface, the raised surface is respectively aligned with the air duct and the collecting duct, and the bottom end of the raised surface is arranged with a pointed end, which points downward to the collecting duct.

[0010] Preferably, the bottom of the tank body is funnel-shaped, the discharge port is arranged at the lowest position of the funnel, a straight pipe is vertically arranged in the tank body, the lower end of the straight pipe is aligned with the discharge port, and a gap is reserved, an auger is rotatably arranged inside the straight pipe, and the auger transmission is connected to the motor.

[0011] Preferably, a plurality of radially extending heating plates are arranged inside the tank body, and the two ends of the heating plates are respectively fixed to the inner wall of the tank body and the straight pipe, a lower annular cavity for introducing steam is arranged in the wall of the tank body, and a surface cavity is arranged inside the heating plate, and the surface cavity is connected with the lower annular cavity.

[0012] Preferably, a cylindrical cavity is provided in the wall of the straight-through pipe, and the cylindrical cavity is communicated with the surface cavity.

[0013] Preferably, a heat equalizing component is provided at the top end of the straight-through pipe, and the heat equalizing component includes a plurality of fan-shaped shells surrounding the straight-through pipe, an upper annular cavity is provided in the wall of the tank body, and the inner cavity of the fan-shaped shell respectively passes through the upper annular cavity and the cylinder cavity, and the upper surface edge of the fan-shaped shell has a side plate to form a flow channel on the upper surface of the fan-shaped shell, and a plurality of leakage cylinders penetrating downwardly through the fan-shaped shell are provided in the flow channel, and the top edge of the straight-through pipe has a guide port for aligning the flow channel.

[0014] Preferably, the fan-shaped shells are evenly distributed around the straight-through pipe, and there is space between adjacent fan-shaped shells for conducting steam upward.

[0015] Compared with the prior art, the advantages of the present invention are as follows:

[0016] 1. The material vapor generated by evaporation of the present invention is uniformly introduced into the air guide layer through the grid port, and the airflow driven by the fan blades passes through the air duct to take away the heat in the air guide layer, thereby reducing the overall temperature of the material in the air guide layer so that part of it forms liquid, greatly alleviating the heat exchange pressure of the subsequent condensation equipment, helping to simplify the structure of the condensation equipment and reduce the condensation power consumption.

[0017] 2. The air duct and the collecting duct of the present invention are arranged in counterposition, and the counter-air duct above the collecting duct forms a low-temperature zone. The raised surface is arranged in the low-temperature zone. The raised surface has a large heat exchange area, so that steam can form liquid on the raised surface, and the inclined surface of the raised surface will guide the liquid to flow to the lower end, and the liquid will quickly fall to the collecting duct through the diversion effect of the tip.

[0018] 3. The present invention conducts liquid upward through the auger and disperses the liquid falling through the heat equalizing component, circulates and conducts the liquid to evaporate, ensures the uniformity of liquid heating, and the annularly distributed fan-shaped shell increases the heating and evaporation area of ​​the liquid, accelerates the evaporation efficiency, and ensures that the formed material vapor rises evenly into the gas conducting layer for pre-condensation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is an overall external schematic diagram of the present invention.

[0020] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the present invention.

[0021] Figure 3 It is a schematic diagram of the cross-sectional structure of the can cover of the present invention.

[0022] Figure 4 It is a schematic diagram of the gate distribution structure of the present invention.

[0023] Figure 5 It is a schematic diagram of the collecting channel structure of the present invention.

[0024] Figure 6 It is a schematic diagram of the raised surface structure of the present invention.

[0025] Figure 7 It is a schematic diagram of the fan-shaped shell distribution structure of the present invention.

[0026] Figure 8 It is a schematic diagram of the heating plate distribution structure of the present invention.

[0027] Fig. 9 It is a schematic diagram of the connection structure between the heating plate, the straight-through pipe and the heat-saturating component of the present invention.

[0028] Fig.10 It is a schematic diagram of the structure of the heat-saturating component of the present invention.

[0029] Figure numerals: 1. tank body; 11. lower annular cavity; 12. upper annular cavity; 2. tank cover; 21. air guide layer; 22. grille; 23. ring cylinder; 24. air duct; 25. warped edge; 26. raised surface; 3. motor; 4. fan blades; 5. heating plate; 6. straight-through pipe; 61. cylinder cavity; 62. guide port; 7. auger; 8. heat-averaging assembly; 81. fan-shaped shell; 82. side plate; 83. leakage cylinder. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0031] like Figure 1As shown, the chemical production evaporation equipment has a cylindrical tank body 1, and the top of the tank body 1 is provided with a tank cover 2 with an upward conical bulge. The gasified material produced by the evaporation of the chemical material is first pre-condensed at the tank cover 2, and then guided to the external condensation equipment, which reduces the burden on the condensation equipment. The specific operation is as follows:

[0032] like Figure 2 , Figure 3 , Figure 4 As shown, a ring cylinder 23 is fixed on the top of the raised top of the tank cover 2, the top of the ring cylinder 23 is open, the fan blades 4 are rotatably installed in the ring cylinder 23, the motor 3 is fixed on the top of the ring cylinder 23 through a bracket, the output shaft of the motor 3 is fixed to the fan blades 4, and an air guide layer 21 surrounding the tank cover 2 is provided in the wall of the tank cover 2, the air guide layer 21 is in the shape of a cone that is raised upward, an annular tube is arranged on the periphery of the tank cover 2, the annular tube is connected to the bottom of the air guide layer 21 at multiple points, and the annular tube is connected to an external condensing device, a plurality of grid openings 22 are evenly distributed on the bottom surface of the tank cover 2, the grid openings 22 penetrate the air guide layer 21, a plurality of air ducts 24 are annularly distributed in the wall of the tank cover 2, the air duct 24 is located above the air guide layer 21, the bottom of the air duct 24 penetrates the edge of the tank cover 2, and the top of the air duct 24 penetrates the ring cylinder 23;

[0033] The material vapor generated by the evaporation of chemical materials enters the air guide layer 21 through each grid opening 22. At this time, the motor 3 is turned on to drive the fan blade 4 to rotate, so that negative pressure is generated in the lower part of the ring tube 23 and the air duct 24. The air flow enters the air duct 24 from the edge of the tank cover 2, and then gathers in the ring tube 23 and conducts upward. The air flow passing through the air duct 24 takes away the heat of the steam in the air guide layer 21, reduces the steam temperature and partially forms liquid. The remaining steam and liquid are gathered in the ring tube and then guided to the condensation equipment.

[0034] Since the air duct 24 is isolated from the bottom of the tank cover 2 by the air guide layer 21 , the evaporation heat in the tank body 1 will not be excessively lost.

[0035] like Figure 5 As shown, the edges of both sides of the gate opening 22 are provided with warping edges 25 that are bent into the air guide layer 21, so that a collection channel is formed between adjacent gate openings 22, and the material vapor can be smoothly introduced into the air guide layer 21 through the warping edges 25, and the liquid drops generated by condensation in the air guide layer 21 are gathered in the collection channel, ensuring that the liquid can be introduced into the ring tube, and preventing a large amount of condensed liquid from dripping back into the tank body 1;

[0036] like Figure 5 , Figure 6As shown, there are several air ducts 24, and the air ducts 24 are distributed in a ring around the tank cover 2. The air ducts 24 are aligned and offset from the grid opening 22. The steam enters the air guide layer 21 from the grid opening 22. The air duct 24 above the collecting channel forms a low-temperature zone. The steam condenses in the low-temperature zone to ensure that the liquid drips into the collecting channel. In addition, the top of the air guide layer 21 has a downward raised surface 26. The raised surface 26 is aligned with the air duct 24 and the collecting channel above and below, and a tip portion is arranged at the bottom end of the raised surface 26, which points downward to the collecting channel. The setting of the raised surface 26 increases the condensation area, so that the steam can form liquid on the raised surface 26, and the inclined surface of the raised surface 26 will guide the liquid to flow to the lower end, and the liquid will quickly fall to the collecting channel through the guiding effect of the tip portion.

[0037] To ensure that the evenly distributed air ducts 24 fully condense the steam generated by the evaporation of the material, it is necessary to make the evaporation of the material in the tank body 1 evenly conduct upward through each grid opening 22. The specific operation is as follows:

[0038] like Fig. 9 As shown, the bottom of the tank body 1 is funnel-shaped, a discharge port is arranged at the bottom of the funnel, a feed port of the tank body 1 is arranged at the upper side, a straight pipe 6 is vertically distributed along the axial direction of the tank body 1, a lower end of the straight pipe 6 is aligned with the discharge port, and a gap is reserved, an auger 7 is rotatably installed inside the straight pipe 6, and the top end of the auger 7 is coaxially connected to the motor 3 with the fan blade 4;

[0039] like Figure 8 , Fig. 9 , Fig.10 As shown, a plurality of heating plates 5 are evenly distributed around the straight tube 6, the straight tube 6 is fixed to the inner wall of the tank body 1 through the heating plates 5, a lower annular cavity 11 is arranged in the wall of the tank body 1, each heating plate 5 has a surface cavity inside, the surface cavity is communicated with the lower annular cavity 11, a cylinder cavity 61 is arranged in the wall of the straight tube 6, the cylinder cavity 61 is communicated with the surface cavity, a heat equalizing component 8 is arranged at the top end of the straight tube 6, the heat equalizing component 8 includes a plurality of fan-shaped shells 81 surrounding the straight tube 6, an upper annular cavity 12 is arranged in the wall of the tank body 1, the inner cavity of the fan-shaped shell 81 respectively passes through the upper annular cavity 12 and the cylinder cavity 61, the upper surface edge of the fan-shaped shell 81 has a side plate 82, so that the upper surface of the fan-shaped shell 81 forms a flow channel, a plurality of leakage cylinders 83 penetrating downwardly through the fan-shaped shell 81 are arranged in the flow channel, the top edge of the straight tube 6 has a guide port 62 for the alignment flow channel, the lower annular cavity 11 is connected to the steam generator for inputting steam, and the upper annular cavity 12 discharges steam through a pipeline;

[0040] Chemical materials are put into the tank body 1 from the feed port, and the liquid level is kept lower than the heat-saturating component 8. The steam generator inputs steam into the lower annular cavity 11, and the steam enters the surface cavity, the cylinder cavity 61, the fan-shaped shell 81, and the upper annular cavity 12 in turn. The motor 3 drives the auger 7 to rotate, and the auger 7 sucks the liquid at the bottom of the tank body 1 into the straight-through pipe 6. The guide port 62 at the top of the straight-through pipe 6 guides the liquid into each flow channel, and the liquid is made to fall again through the densely distributed leakage tubes 83, so that the liquid in the tank body 1 forms a circulation path that moves upward from the bottom and then diffuses from the top. During the liquid circulation process, the steam conducted in the surface cavity, the cylinder cavity 61, and the fan-shaped shell 81 heats and evaporates it. The annularly distributed fan-shaped shell 81 increases the heating and evaporation area of ​​the liquid, accelerates the evaporation efficiency, and ensures that the formed material vapor rises evenly.

[0041] like Figure 7 As shown, the fan-shaped shells 81 are evenly distributed around the straight-through pipe 6, and there is space between adjacent fan-shaped shells 81 for conducting steam upward, so that the steam generated by the evaporation of the lower liquid can be evenly conducted upward.

[0042] like Figure 2 As shown, the fan blades 4 and the auger 7 are coaxially connected to the motor 3, and a power source is used to synchronously achieve hybrid heating of the material and condensation of the vaporized material.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A chemical production evaporation device, comprising: A tank body (1) having a discharge port at the bottom and a feed port at the side, a tank cover (2) with an upwardly conical bulge arranged on the top of the tank body (1), a ring tube (23) at the top of the bulge of the tank cover (2), characterized in that an air guide layer (21) surrounding the tank cover (2) is provided inside the wall of the tank cover (2), a plurality of grid openings (22) penetrating the air guide layer (21) are evenly distributed on the bottom surface of the tank cover (2), and the outer periphery of the tank cover (2) is connected to the air guide layer (21) a ring tube at the bottom end, an air duct (24) is arranged in the wall of the tank cover (2) above the air guide layer (21), the bottom of the air duct (24) passes through the edge of the tank cover (2), the top of the air duct (24) passes through the ring tube (23), a fan blade (4) is rotatably arranged in the ring tube (23), the fan blade (4) is connected to a motor (3) for driving the fan blade (4) to rotate, and the rotating fan blade (4) is used to drive the air flow in the air duct (24) to converge into the ring tube (23) and be conducted upward; The two side edges of the gate opening (22) have warped edges (25) that are bent into the air guide layer (21), so that a collection channel is formed between adjacent gate openings (22); There are a plurality of air ducts (24), and the air ducts (24) are distributed in a ring around the tank cover (2), and the air ducts (24) are aligned with the collecting channel and staggered with the gate opening (22); The top of the air guide layer (21) has a downward raised surface (26), the raised surface (26) being aligned with the air duct (24) and the collecting duct above and below, respectively, and a pointed end is arranged at the bottom end of the raised surface (26), the pointed end pointing downward toward the collecting duct.

2. The chemical production evaporation equipment according to claim 1, characterized in that: The bottom of the tank body (1) is funnel-shaped, the discharge port is arranged at the lowest position of the funnel, a straight pipe (6) is vertically arranged in the tank body (1), the lower end of the straight pipe (6) is aligned with the discharge port, and a gap is reserved, an auger (7) is rotatably arranged inside the straight pipe (6), and the auger (7) is transmission-connected to the motor (3).

3. The chemical production evaporation equipment according to claim 2, characterized in that: A plurality of radially extending heating plates (5) are arranged inside the tank body (1), and the two ends of the heating plates (5) are respectively fixed to the inner wall of the tank body (1) and the straight pipe (6), a lower annular cavity (11) for introducing steam is arranged inside the wall of the tank body (1), and a surface cavity is provided inside the heating plates (5), and the surface cavity is connected to the lower annular cavity (11).

4. The chemical production evaporation equipment according to claim 3, characterized in that: The wall of the straight-through pipe (6) comprises a cylindrical cavity (61), and the cylindrical cavity (61) is in communication with the surface cavity.

5. The chemical production evaporation equipment according to claim 4, characterized in that: A heat equalizing assembly (8) is arranged at the top end of the straight pipe (6), and the heat equalizing assembly (8) comprises a plurality of fan-shaped shells (81) surrounding the straight pipe (6). An upper annular cavity (12) is arranged in the wall of the tank body (1), and the inner cavity of the fan-shaped shell (81) respectively penetrates the upper annular cavity (12) and the cylinder cavity (61). The upper surface edge of the fan-shaped shell (81) has a side plate (82), so that a flow channel is formed on the upper surface of the fan-shaped shell (81), and a plurality of leakage cylinders (83) penetrating downwardly through the fan-shaped shell (81) are arranged in the flow channel. The top end edge of the straight pipe (6) has a guide port (62) aligned with the flow channel.

6. The chemical production evaporation equipment according to claim 5, characterized in that: The sector-shaped shells (81) are evenly distributed around the straight pipe (6), and spaces for conducting steam upwards are provided between adjacent sector-shaped shells (81).

Images