Tank bottom suction type emulsifying machine

Abstract

The utility model relates to a tank bottom suction type emulsifying machine which comprises a machine base, a pump body, a feeding cavity, a stator and a rotor, the pump body is provided with an emulsifying cavity and a discharging pipe communicated with the emulsifying cavity, and the stator and the rotor are installed in the emulsifying cavity; the device is characterized in that a charging cavity is formed in the side wall of the feeding cavity, the lower end of the charging cavity is communicated with the emulsifying cavity through a feeding port in the upper end face of the stator, at least one charging port is formed in the upper end of the charging cavity, powder or liquid can be added into the charging cavity through the charging port, and centrifugal force generated by high-speed rotation of the rotor enables the charging cavity to generate negative pressure; materials in the feeding cavity are sucked into the emulsifying cavity, powder is prevented from floating on the upper surface of liquid in the tank body to affect the mixing time, and the device has the advantages of being high in mixing speed, good in mixing effect, convenient to feed, time-saving, labor-saving and the like.

Description

TECHNICAL FIELD

[0001] The utility model belongs to stirring emulsification equipment, especially relates to a tank bottom emulsifier. BACKGROUND

[0002] Tank bottom emulsifier is widely applied in the mixing, mixing and emulsification treatment of multiple materials in chemical industry, food, pharmaceutical, paint and other industries. Its structure generally includes motor, rotor, stator, rotor and stator gap cooperation, and is integrally installed in emulsification cavity. The feed inlet of emulsification cavity is communicated with the inner cavity of tank body. The motor drives the rotor to rotate at high speed, and the material moves at high speed. Strong shearing force, impact force and turbulence are generated at the gap between rotor and stator, the particles in the material are broken and refined, and the uniform mixing and emulsification effect of multiple materials are realized. However, when adding materials in the mixing, stirring and emulsification process of the existing product, manual feeding through the manhole on the tank is needed, and the labor intensity of feeding operation is large. Moreover, the powder fed is easy to float on the upper part of liquid in the tank, the powder-liquid mixing time is increased, and the working efficiency is reduced. CONTENT OF THE UTILITY MODEL

[0003] The utility model provides a kind of tank bottom suction type emulsifier, which can directly add materials into emulsification cavity through special feeding channel, save time and labor in feeding operation, and has good mixing effect and high efficiency.

[0004] The technical scheme of the utility model is realized as follows:

[0005] A tank bottom suction type emulsifier includes a base, a pump body, a feed cavity, a stator and a rotor. One end of the base is fixedly connected with a motor housing, and the other end is fixedly and sealingly connected with one end of the pump body. The other end of the pump body is fixedly and sealingly connected with one end of the feed cavity. The pump body has an emulsification cavity and a discharge pipe communicated with the emulsification cavity. The other end of the feed cavity is fixedly and sealingly connected with a tank bottom flange. The stator is fixedly installed in the emulsification cavity. The rotor is located in the emulsification cavity and gap cooperates with the stator. The center of the rotor is fixedly connected with one end of a pump shaft, and the other end of the pump shaft is connected with a motor rotating shaft. The features are that a feeding cavity is arranged on the side wall of the feed cavity. The lower end of the feeding cavity is communicated with the emulsification cavity through a feed inlet on the upper end surface of the stator. At least one feeding port is arranged on the upper end of the feeding cavity. The rotor adopts a blade type structure. The feed inlet and the feeding cavity are in negative pressure state under the rotating state of the rotor.

[0006] The preferred solution is that a composite sealing structure is formed by a mechanical sealing device and a grease injection sealing device between the pump shaft and the pump body; the mechanical sealing device is composed of an upper sealing sleeve, a lower sealing sleeve, a sealing shaft sleeve and a sealing seat, the sealing seat is installed between the pump body and the machine base through the upper end annular boss seal, the inner circular wall of the sealing shaft sleeve is statically sealed with the outer circular surface of the pump shaft, and the two ends are respectively dynamically sealed with the end faces of the upper sealing sleeve and the lower sealing sleeve, a first elastic sealing ring is arranged between the radial upper step in the middle of the outer circular surface of the upper sealing sleeve and the radial lower step in the middle of the pump body shaft hole, and a second elastic sealing ring is arranged between the radial lower step in the middle of the outer circular surface of the lower sealing sleeve and the radial upper step at the lower part of the sealing seat; the grease injection sealing device is composed of a grease injection sealing cavity formed between the sealing seat and the sealing shaft sleeve, the upper sealing sleeve, the lower sealing sleeve and the pump body, and a grease injection valve installed on the sealing seat.

[0007] The preferred solution is that the upper plane of the rotor is provided with inner blades and outer blades, and the inner blades and outer blades adopt a knife-shaped structure, and several blades are evenly arranged in the circumferential direction. The outer blades are arranged on the outer circular surface of the upper plane of the rotor, and straight teeth are evenly arranged in the circumferential direction at the radial middle position between the inner blades and the outer blades, and several knife-shaped blades are evenly arranged in the circumferential direction of the lower plane of the rotor; concentric inner and outer rings are arranged in the lower plane of the stator, and several windows are evenly arranged in the circumferential direction of the inner and outer rings; the inner ring is matched with the annular space gap between the inner blades and the straight teeth of the rotor, and the outer ring is matched with the annular space gap between the outer blades and the straight teeth of the rotor.

[0008] Compared with the prior art, the beneficial effects of the present invention are as follows: a feeding chamber is provided on the side wall of the feed chamber, and powder or liquid can be added to the feeding chamber from the feeding port during the mixing and emulsification process. The centrifugal force of the high-speed rotation of the rotor generates a negative pressure in the feeding chamber, which sucks the material in the feeding chamber into the emulsification chamber, preventing the powder from floating on the upper surface of the liquid in the tank body and affecting the mixing time. The utility model has the advantages of fast mixing speed, good mixing effect, convenient feeding, time saving and labor saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural diagram of the present utility model.

[0010] Figure 2 This utility model Figure 1 Schematic diagram of the structure of the upper plane of the middle rotor.

[0011] Figure 3 This utility model Figure 1 Schematic diagram of the structure of the lower plane of the middle rotor.

[0012] Figure 4 This utility model Figure 1 Schematic diagram of the structure of the stator.

[0013] In the figure: 1 motor, 2 pump shaft, 3 base, 4 rotor, 5 stator, 6 pump body, 7 feed chamber, 8 tank bottom flange, 9 feeding chamber, 10 feeding port, 11 feeding port, 12 discharge pipe, 13 emulsification chamber, 14 upper sealing sleeve, 15 sealing sleeve, 16 sealing seat, 17 grease injection sealing chamber, 18 lower sealing sleeve, 19 grease injection valve, 20 inner blade, 21 outer blade, 22 straight teeth, 23 knife-shaped blade, 24 outer ring, 25 inner ring, 26 window, 27 second elastic sealing ring, 28 first elastic sealing ring. DETAILED DESCRIPTION

[0014] like Figure 1 The tank bottom suction emulsifier shown includes a base 3, a pump body 6, a feed cavity 7, a stator 5 and a rotor 4. One end of the base 3 is fixedly connected to the motor 1 housing, and the other end is fixedly and sealedly connected to one end of the pump body 6. The other end of the pump body 6 is fixedly and sealedly connected to one end of the feed cavity 7. The pump body 6 has an emulsification cavity 13 and a discharge pipe 12 connected to the emulsification cavity 13. The other end of the feed cavity 7 is fixedly and sealedly connected to the tank bottom flange 8. The stator 5 is fixedly installed in the emulsification cavity 13. The rotor 4 is located in the emulsification cavity 13 and has a clearance fit with the stator 5. The center of the rotor is fixedly connected to one end of the pump shaft 2. The other end of the pump shaft 2 is connected to the rotating shaft of the motor 1. The motor 1 drives the pump shaft 2 and the rotor 4 to rotate at high speed. , the material in the inner cavity of the feeding cavity 7 is sucked into the emulsification cavity 13 for stirring, mixing and emulsification; its characteristics are: a feeding cavity 9 is provided on the side wall of the feeding cavity 7, the lower end of the feeding cavity 9 is connected with the emulsification cavity 13 through the feeding port 11 on the upper end surface of the stator 5, and the upper end of the feeding cavity 9 is provided with at least one feeding port 10, and the rotor 4 adopts a blade structure. When the rotor 4 is rotating, the feeding port 11 and the feeding cavity 9 are in a negative pressure state, and the material enters the feeding cavity 9 from the feeding port 10 and is sucked into the emulsification cavity 13 by the negative pressure, with fast mixing speed, good effect and high efficiency, which solves the problem that the powder material of the existing product floats on the liquid surface when added from the tank inlet, resulting in long mixing time and low efficiency.

[0015] The mechanical sealing device is composed of an upper sealing sleeve 14, a lower sealing sleeve 18, a sealing shaft sleeve 15 and a sealing seat 16, the sealing seat 16 is sealingly installed between the pump body 6 and the base 3 through an upper annular shoulder, the inner hole of the sealing shaft sleeve 15 is in static sealing cooperation with the outer circular surface of the pump shaft 2, the two ends of the sealing shaft sleeve 15 are in dynamic sealing cooperation with the end faces of the upper sealing sleeve 14 and the lower sealing sleeve 18 respectively, the two ends of the sealing shaft sleeve 15 and the end faces of the upper sealing sleeve 14 and the lower sealing sleeve 18 adopt mirror surface cooperation sealing structure formed through precision machining, so that the mechanical sealing performance is improved, the first elastic sealing ring 28 is arranged between the middle radial upper step of the outer circular surface of the upper sealing sleeve 14 and the middle radial lower step of the shaft hole of the pump body 6, the second elastic sealing ring 27 is arranged between the middle radial lower step of the outer circular surface of the lower sealing sleeve 18 and the middle radial upper step of the lower part of the sealing seat 16, and the upper sealing sleeve 14 and the lower sealing sleeve 18 are axially pressed and sealed with the sealing shaft sleeve 15 by the elastic deformation of the first elastic sealing ring 28 and the second elastic sealing ring 27; the grease injection sealing device is composed of a grease injection sealing cavity 17 formed between the sealing seat 16 and the sealing shaft sleeve 15, the upper sealing sleeve 14, the lower sealing sleeve 18 and the pump body 6 and a grease injection valve 19 installed on the sealing seat 16, and the grease injection sealing cavity 17 is injected with sealing grease through the grease injection valve 19, so that the grease injection sealing between the pump shaft 2 and the pump body 6 is realized.

[0016] The upper plane of the rotor 4 is provided with inner blades 20 and outer blades 21, the inner blades 20 and the outer blades 21 adopt a knife type structure and cut the material in the stirring and mixing process, the inner blades 20 and the outer blades 21 have a plurality of pieces and are uniformly distributed in the circumferential direction of the upper plane of the rotor 4, the outer blades 21 are arranged at the outer circular surface of the upper plane of the rotor 4, straight teeth 22 are uniformly arranged on the circumference of the radial middle position between the inner blades 20 and the outer blades 21, and a plurality of knife type blades 23 are uniformly arranged in the circumferential direction of the lower plane of the rotor 4, as shown in Figure 2 、 Figure 3 The lower plane of the stator 5 is internally provided with a concentric inner circular ring 25 and an outer circular ring 24, a plurality of windows 26 are uniformly arranged in the circumferential direction of the inner circular ring 25 and the outer circular ring 24, as shown in Figure 4 The annular space gap cooperation is between the inner circular ring 25 and the inner blades 20 and the straight teeth 22, and the annular space gap cooperation is between the outer circular ring 24 and the outer blades 21 and the straight teeth 22, when the rotor 4 rotates at high speed, the material collides between the inner circular ring 25 and the outer circular ring 24 under the action of centrifugal force, so that the functions of rapid mixing and emulsification are achieved, and the mixing speed is high and the efficiency is high.

[0017] In the utility model, the "upper end", "lower end", "upper plane" and "lower plane" are directional words in the drawings, which are convenient for description and cannot be understood as the limitation of the utility model.

Claims

1. A tank bottom suction type emulsifying machine, comprising a base (3), a pump body (6), a feed cavity (7), a stator (5) and a rotor (4), one end of the base (3) is fixedly connected with a motor (1) shell, the other end is fixedly and sealingly connected with one end of the pump body (6), the other end of the pump body (6) is fixedly and sealingly connected with one end of the feed cavity (7), the pump body (6) has an emulsifying cavity (13) and a discharge pipe (12) in communication with the emulsifying cavity (13), the other end of the feed cavity (7) is fixedly and sealingly connected with a tank bottom flange (8), the stator (5) is fixedly installed in the emulsifying cavity (13), the rotor (4) is located in the emulsifying cavity (13) and is gap-fitted with the stator (5), the center of the lower plane is fixedly connected with one end of a pump shaft (2), the other end of the pump shaft (2) is connected with a rotating shaft of the motor (1); characterized in that: There is a feeding cavity (9) in the side wall of the feeding cavity (7), the lower end of the feeding cavity (9) is communicated with the emulsifying cavity (13) through the feeding port (11) in the upper end face of the stator (5), and the upper end of the feeding cavity (9) is provided with at least one feeding port (10); the rotor (4) adopts a vane type structure; in the rotating state of the rotor (4), the feeding port (11) and the feeding cavity (9) form a negative pressure cavity. ​ 2. A tank bottom suction emulsifier according to claim 1, characterised in that: The mechanical sealing device and the grease injection sealing device are used between the pump shaft (2) and the pump body (6) to form a composite sealing structure; the mechanical sealing device is composed of an upper sealing sleeve (14), a lower sealing sleeve (18), a sealing shaft sleeve (15) and a sealing seat (16); the sealing seat (16) is sealingly installed between the pump body (6) and the base (3) through the annular shoulder in the upper end; the inner hole of the sealing shaft sleeve (15) is in static sealing cooperation with the outer cylindrical surface of the pump shaft (2); the two ends are in dynamic sealing cooperation with the end faces of the upper sealing sleeve (14) and the lower sealing sleeve (18) respectively; the first elastic sealing ring (28) is arranged between the radial upper step in the middle of the outer cylindrical surface of the upper sealing sleeve (14) and the radial lower step in the middle of the shaft hole of the pump body (6); the second elastic sealing ring (27) is arranged between the radial lower step in the middle of the outer cylindrical surface of the lower sealing sleeve (18) and the radial upper step in the lower part of the sealing seat (16); the grease injection sealing device is composed of the grease injection sealing cavity (17) formed between the sealing seat (16) and the sealing shaft sleeve (15), the upper sealing sleeve (14), the lower sealing sleeve (18) and the pump body (6), and the grease injection valve (19) installed on the sealing seat (16).

3. A tank bottom suction emulsifier according to claim 1 or 2, characterised in that: The upper plane of the rotor (4) is provided with inner vanes (20) and outer vanes (21); the inner vanes (20) and the outer vanes (21) adopt a knife type structure; the inner vanes (20) and the outer vanes (21) have a plurality of pieces and are uniformly distributed in the circumferential direction of the upper plane of the rotor (4); the outer vanes (21) are arranged at the outer cylindrical surface of the upper end of the rotor (4); straight teeth (22) are uniformly arranged on the circumference at the radial intermediate position between the inner vanes (20) and the outer vanes (21); a plurality of knife type vanes (23) are uniformly arranged in the circumferential direction of the lower plane of the rotor (4); the stator (5) is internally provided with a concentric inner circular ring (25) and an outer circular ring (24); a plurality of windows (26) are uniformly arranged in the circumferential direction of the inner circular ring (25) and the outer circular ring (24); the annular space clearance between the inner circular ring (25) and the inner vanes (20) and the straight teeth (22) is matched; the annular space clearance between the outer circular ring (24) and the outer vanes (21) and the straight teeth (22) is matched.

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