EPS reactor capable of reducing foam amount

Abstract

The invention relates to the technical field of reactors, and discloses an EPS reactor capable of reducing the amount of foam, which solves the problems that the reactors currently on the market cannot be stirred in both positive and negative directions at the same time during stirring, the reactor cannot be shaken after stirring is completed, and it is inconvenient to take the materials in the reactor out. The reactor comprises a base, support side plates are fixedly installed on both sides of the top of the base, a reaction vessel capable of swinging back and forth is arranged between the two support side plates, limiting blocks are fixedly installed above the inner sides of the two support side plates, and circular notches are opened on the two limiting blocks. According to the invention, an upper stirring blade and a lower stirring blade are driven by a first motor to stir in both positive and negative directions in the reaction vessel at the same time, so that the inside can react fully, and the reaction vessel can be shaken after stirring is completed to react fully, and finally it is convenient to take the reacted materials out of the reaction vessel.

Description

Technical Field

[0001] The invention belongs to the technical field of reactors, in particular to an EPS reactor capable of reducing the amount of foam. Background Art

[0002] Reactors are containers for physical or chemical reactions. Through the structural design and parameter configuration of the container, the heating, evaporation, cooling and low-speed mixing functions required by the process are realized. Reactors are widely used in the fields of petroleum, chemical industry, rubber, pesticides, dyes, medicine and food. They are pressure vessels used to complete processes such as vulcanization, nitration, hydrogenation, hydrocarbonization, polymerization, condensation, etc., such as reactors, reaction pots, decomposition pots, polymerization kettles, etc.; the materials are generally carbon manganese steel, stainless steel, zirconium, nickel-based (Hastelloy, Monel, Inconel) alloys and other composite materials; EPS is polystyrene foam, a light high molecular polymer. It is made of polystyrene resin with a foaming agent added, which is heated to soften and produce gas to form a rigid closed-cell foam plastic. When conducting experiments on polystyrene foam, a reactor is used. However, the existing reactor with a function of reducing the amount of foam still has certain inconveniences when used.

[0003] The reactors currently on the market that can reduce the amount of foam, when in use, need to carry out a series of chemical reactions in the reaction vessel, and sometimes need to be stirred for the reaction inside, and the conventional stirring method is to stir in one direction, which will cause the bottom of the reaction vessel to be easily stirred unevenly, so that the reaction inside cannot be fully carried out, and generally, after the stirring of the reactor is completed, the reaction vessel cannot be shaken, which reduces the efficiency of the chemical reaction inside the reaction vessel, and it is inconvenient to take out the materials in the reaction vessel after the experiment is completed. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides an EPS reactor that can reduce the amount of foam, which effectively solves the problems that the reactors on the market cannot stir in all directions simultaneously during stirring, and the reactor cannot be shaken after stirring, and it is inconvenient to take out the materials in the reactor.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an EPS reactor capable of reducing the amount of foam, comprising a base, support side plates are fixedly installed on both sides of the top of the base, a reaction vessel capable of swinging forward and backward is arranged between the two support side plates, limit blocks are fixedly installed on the upper inner sides of the two support side plates, and circular notches are provided on the two limit blocks, limit rods are fixedly installed on the tops of both sides of the reaction vessel, and the two limit rods on both sides of the reaction vessel are respectively located in the circular notches on the two limit blocks and can rotate therein, and slots are provided at the ends of the two limit rods away from the reaction vessel, the tops of the support side plates are threadedly connected with threaded rods, and one end of the threaded rod passes through the support side plates and extends into the circular notch on the limit block, and one end of the threaded rod located in the circular notch is inserted into the slot in the limit rod, a cover is provided on the top of the reaction vessel, and a first motor is fixedly installed on the top of the cover, the output end of the first motor passes through the cover and a stirring rod is fixedly installed on the output end, and three groups of upper stirring blades are fixedly installed on the stirring rod.

[0006] Preferably, a fixed block is fixedly installed in the middle position of the bottom of the inner cavity of the reaction vessel, a rotatable driven rod is arranged inside the fixed block, and a third transmission plate is fixedly installed on the top of the driven rod, and the top of the third transmission plate is provided with teeth, and a group of lower stirring blades are also fixedly installed on the driven rod, and two handles are symmetrically installed on the side of the reaction vessel.

[0007] Preferably, a fixed tube is provided above the third transmission plate, support rods are fixedly connected to both sides of the outer wall of the fixed tube, and the ends of the two support rods away from the fixed tube are respectively fixedly connected to both sides of the inner wall of the reaction vessel, and a rotatable gear is also installed on the side of the fixed tube, and the bottom of the gear is meshingly connected with the teeth on the top of the third transmission plate, and a rotatable second transmission plate is provided on the top of the fixed tube, teeth are provided on the top and bottom of the second transmission plate, and the top of the gear is meshingly connected with the teeth on the bottom of the second transmission plate.

[0008] Preferably, a bearing is fixedly installed inside the fixed tube, a plug rod is fixedly connected to the middle position of the bottom of the second transmission plate, and the bottom end of the plug rod is inserted into the fixed tube and fixedly connected to the bearing.

[0009] Preferably, an elliptical groove is provided inside the fixing block, an elliptical sphere is fixedly mounted on one end of the driven rod inserted into the fixing block, and the elliptical sphere is located inside the elliptical groove and can rotate therein.

[0010] Preferably, the elliptical groove is evenly provided with four circular grooves on the inner wall at the opening of the fixed block, and a rotatable limiting ball is arranged inside the four circular grooves, an annular slide groove is provided on the driven rod, and the annular slide groove and the four limiting balls are located at the same horizontal height, and the parts of the four limiting balls extending out of the circular groove are all located inside the annular slide groove and can slide inside it.

[0011] Preferably, a first transmission plate is fixedly mounted on the bottom end of the stirring rod, and teeth are arranged at the bottom of the first transmission plate. When the cover is closed on the reaction vessel, the teeth at the bottom of the first transmission plate at the bottom end of the stirring rod are meshed and connected with the teeth at the top of the second transmission plate.

[0012] Preferably, a storage groove is provided inside the base, a second motor is fixedly installed inside the storage groove, and a rotating member is fixedly installed on the output end of the second motor, a longitudinal swing groove is provided on the top of the base, and the swing groove is connected with the storage groove, a fixed rod is fixedly installed on the side of the inner wall of the storage groove close to the swing groove, and a swing rod that can rotate around the fixed rod is provided on the fixed rod, the swing rod is L-shaped, and the vertical part of the swing rod passes through the swing groove and extends to the top of the base, and one end of the horizontal part of the swing rod is slidably installed on the rotating member.

[0013] Preferably, a connecting piece is fixedly installed in the middle position of the bottom of the reaction vessel, a connecting rod that can rotate around the connecting piece is sleeved on the connecting piece, and a rotatable connecting nut is provided at the bottom of the connecting rod, and the connecting nut can be threadedly connected to the top end of the swing rod.

[0014] Preferably, a sliding groove is provided on the side surface of the rotating member, and the sliding groove is in an up and down wavy shape and surrounds the side surface of the rotating member. The horizontal end of the swing rod is slidably installed in the sliding groove on the side surface of the rotating member and can slide inside it.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1) When using the device, first put the material in the reaction vessel, then cover it with the cover, at which time the first transmission plate is meshed and connected with the second transmission plate, and then the first motor is operated to drive the stirring rod to rotate in the reaction vessel. When the stirring rod drives the first transmission plate to rotate clockwise, the first transmission plate will drive the second transmission plate to rotate clockwise, and then the second transmission plate will drive the gear meshed with it to rotate counterclockwise, and then the gear will drive the third transmission plate meshed with it to rotate counterclockwise, so that the driven rod at the bottom of the third transmission plate rotates counterclockwise at the bottom of the reaction vessel, so that the stirring rod and the driven rod will respectively drive the upper stirring blade and the lower stirring blade to stir in two directions in the reaction vessel at the same time, so that the material inside the reaction vessel can react fully; 2) After the stirring is completed, the second motor is operated to drive the rotating part on its output end to rotate, and one end of the horizontal part of the swing rod will move in the sliding groove with the rotation of the rotating part, and then the swing rod will repeatedly move back and forth in the swing groove with the fixed rod as the center, and the top of the swing rod is threadedly connected to the bottom of the connecting rod, so that the connecting rod can shake back and forth at the bottom of the reaction vessel with the connecting part as the center, and finally the reaction vessel can be shaken between the two supporting side plates to complete the shock after the reaction, so that the material inside the reaction vessel can undergo a more sufficient chemical reaction; 3) After the reaction is completed, the threaded rods on the outside of the supporting side plates on both sides are twisted outward to disengage the end of the threaded rod located in the circular notch from the slot in the limiting rod, and then the connecting nut is twisted to separate the connecting nut from the top of the swing rod, and then the two handles on the side of the reaction vessel are held and lifted upward to disengage the limiting rod from the circular notch on the limiting block, and finally the reaction vessel can be removed from between the two supporting side plates on the base, and the reacted material inside the reaction vessel can be sampled, which is simple and convenient to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall structure of the present invention; Figure 3 This is a schematic diagram of the connection structure between the base and the reaction vessel of the present invention; Figure 4 It is a schematic diagram of the structure of the connection between the connecting rod and the swing rod of the present invention; Figure 5 It is a schematic diagram of the structure of the swing rod and the rotating member connected to each other in the present invention; Figure 6 It is a schematic diagram of a local structure of the present invention from a top view; Figure 7 It is a schematic diagram of the structure of the sealing cover and the stirring rod of the present invention; Figure 8 It is a schematic diagram of the structure inside the reaction vessel of the present invention; Fig. 9 It is a structural schematic diagram of the connection between the first transmission plate and the second transmission plate of the present invention; Fig.10 It is a structural schematic diagram of the connection between the second transmission plate and the fixed pipe of the present invention; Fig.11 It is a structural schematic diagram of the connection between the driven rod and the fixed block of the present invention; In the figure: 1, base; 2, supporting side plate; 3, reaction vessel; 4, cover; 5, first motor; 6, handle; 7, threaded rod; 8, swing groove; 9, swing rod; 10, stirring rod; 11, upper stirring blade; 12, storage groove; 13, second motor; 14, rotating part; 15, fixing rod; 16, connecting part; 17, connecting rod; 18, connecting nut; 19, sliding groove; 20, limiting block; 21, limiting rod; 22, slot; 23, first transmission plate; 24, fixing block; 25, ellipsoidal sphere; 26, driven rod; 27, third transmission plate; 28, lower stirring blade; 29, fixing tube; 30, supporting rod; 31, gear; 32, second transmission plate; 33, plug rod; 34, bearing; 35, ellipsoidal groove; 36, annular slide groove; 37, limiting ball. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be clearly and completely described 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; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0018] Embodiment 1, by Figure 1-11The present invention comprises a base 1, support side plates 2 are fixedly installed on both sides of the top of the base 1, a reaction vessel 3 capable of swinging forward and backward is arranged between the two support side plates 2, a limiting block 20 is fixedly installed on the upper inner side of the two support side plates 2, and circular notches are provided on the two limiting blocks 20, limiting rods 21 are fixedly installed on the top of both sides of the reaction vessel 3, and the two limiting rods 21 on both sides of the reaction vessel 3 are respectively located in the circular notches on the two limiting blocks 20 and can rotate therein, and when the two limiting rods 21 are away from the reaction vessel 3, the two limiting rods 21 are located in the circular notches on the two limiting blocks 20 and can rotate therein, and when the two limiting rods 21 are away from the reaction vessel 3, the two limiting rods 21 are fixedly installed on the upper inner side of the two support side plates 2. A slot 22 is provided at one end of the reaction vessel 3, a threaded rod 7 is threadedly connected to the top of the supporting side plate 2, and one end of the threaded rod 7 passes through the supporting side plate 2 and extends to the circular notch on the limit block 20, and the end of the threaded rod 7 located in the circular notch is inserted into the slot 22 in the limit rod 21, a cover 4 is provided on the top of the reaction vessel 3, and a first motor 5 is fixedly installed on the top of the cover 4, the output end of the first motor 5 passes through the cover 4 and a stirring rod 10 is fixedly installed on the output end, and three groups of upper stirring blades 11 are fixedly installed on the stirring rod 10.

[0019] Embodiment 2, on the basis of embodiment 1, a fixed block 24 is fixedly installed in the middle position of the bottom of the inner cavity of the reaction vessel 3, a rotatable driven rod 26 is arranged inside the fixed block 24, and a third transmission plate 27 is fixedly installed at the top of the driven rod 26, and the top of the third transmission plate 27 is provided with teeth, and a group of lower stirring blades 28 are also fixedly installed on the driven rod 26, and two handles 6 are symmetrically installed on the side of the reaction vessel 3.

[0020] Embodiment 3, on the basis of embodiment 2, a fixed tube 29 is arranged above the third transmission plate 27, support rods 30 are fixedly connected to both sides of the outer wall of the fixed tube 29, and the ends of the two support rods 30 away from the fixed tube 29 are respectively fixedly connected to both sides of the inner wall of the reaction vessel 3, a rotatable gear 31 is also installed on the side of the fixed tube 29, and the bottom of the gear 31 is meshed with the tooth pattern on the top of the third transmission plate 27, and a rotatable second transmission plate 32 is arranged on the top of the fixed tube 29, and teeth are arranged on the top and bottom of the second transmission plate 32, and the top of the gear 31 is meshed with the tooth pattern on the bottom of the second transmission plate 32. When the stirring rod 10 drives the second transmission plate 32 to rotate clockwise, the gear 31 meshed with it will rotate counterclockwise, and then the gear 31 drives the third transmission plate 27 meshed with it to rotate counterclockwise, so that the stirring rod 10 and the driven rod 26 can rotate in two directions at the same time.

[0021] Embodiment 4, on the basis of embodiment 3, a bearing 34 is fixedly installed inside the fixed tube 29, a plug rod 33 is fixedly connected to the middle position of the bottom of the second transmission plate 32, and the bottom end of the plug rod 33 is inserted into the fixed tube 29 and fixedly connected to the bearing 34, so that the second transmission plate 32 can rotate above the fixed tube 29, and the bearing 34 can make it more labor-saving when rotating.

[0022] Embodiment 5, on the basis of embodiment 2, an elliptical groove 35 is opened inside the fixed block 24, and an ellipsoidal sphere 25 is fixedly installed on one end of the driven rod 26 inserted into the fixed block 24, and the ellipsoidal sphere 25 is located inside the elliptical groove 35 and can rotate therein, preventing the driven rod 26 from detaching from the inside of the fixed block 24.

[0023] Embodiment 6, on the basis of embodiment 5, four circular grooves are evenly opened on the inner wall of the elliptical groove 35 located at the opening of the fixed block 24, and a rotatable limiting ball 37 is arranged inside the four circular grooves, an annular slide groove 36 is opened on the driven rod 26, and the annular slide groove 36 and the four limiting balls 37 are located at the same horizontal height, and the parts of the four limiting balls 37 extending out of the circular groove are all located inside the annular slide groove 36 and can slide inside it, and the four limiting balls 37 can reduce the contact area between the driven rod 26 and the fixed block 24, making it more labor-saving when rotating.

[0024] Embodiment 7, on the basis of embodiment 1, a first transmission plate 23 is fixedly mounted on the bottom end of the stirring rod 10, and teeth are arranged at the bottom of the first transmission plate 23. When the cover 4 is closed on the reaction vessel 3, the teeth at the bottom of the first transmission plate 23 at the bottom end of the stirring rod 10 are meshed and connected with the teeth at the top of the second transmission plate 32. By rotating the stirring rod 10, the first transmission plate 23 drives the second transmission plate 32 meshed and connected therewith to rotate together.

[0025] Embodiment 8, on the basis of embodiment 1, a storage groove 12 is opened inside the base 1, a second motor 13 is fixedly installed inside the storage groove 12, and a rotating member 14 is fixedly installed on the output end of the second motor 13, a longitudinal swinging groove 8 is opened on the top of the base 1, and the swinging groove 8 is connected with the storage groove 12, a fixed rod 15 is fixedly installed on the side of the inner wall of the storage groove 12 close to the swinging groove 8, and a swinging rod 9 that can rotate around the fixed rod 15 as the center is provided on the fixed rod 15, the swinging rod 9 is L-shaped, and the vertical portion of the swinging rod 9 passes through the swinging groove 8 and extends to the top of the base 1, and one end of the horizontal portion of the swinging rod 9 is slidably installed on the rotating member 14.

[0026] Embodiment 9, on the basis of embodiment 1, a connecting piece 16 is fixedly installed at the middle position of the bottom of the reaction vessel 3, a connecting rod 17 which can rotate around the connecting piece 16 is sleeved on the connecting piece 16, and a rotatable connecting nut 18 is provided at the bottom of the connecting rod 17, and the connecting nut 18 can be threadedly connected to the top end of the swing rod 9.

[0027] Embodiment 10, on the basis of embodiment 8, a sliding groove 19 is opened on the side surface of the rotating member 14, and the sliding groove 19 is in an up and down wavy shape and surrounds the side surface of the rotating member 14, and one horizontal end of the swing rod 9 is slidably installed in the sliding groove 19 on the side surface of the rotating member 14 and can slide therein. Through the rotation of the rotating member 14, one end of the swing rod 9 moves along the sliding groove 19 on the rotating member 14, thereby driving the swing rod 9 to swing back and forth in the swing groove 8 with the fixed rod 15 as the center, and then driving the reaction vessel 3 to swing back and forth between the two supporting side plates 2 with the limit rod 21 as the center.

[0028] Working principle: firstly, the material is placed in the reaction vessel 3, and then the cover 4 is put on. At this time, the first transmission plate 23 at the bottom of the stirring rod 10 is meshed and connected with the second transmission plate 32, and then the first motor 5 is operated to drive the stirring rod 10 to rotate in the reaction vessel 3. When the stirring rod 10 drives the first transmission plate 23 to rotate clockwise, the first transmission plate 23 will drive the second transmission plate 32 to rotate clockwise, and then the second transmission plate 32 will drive the gear 31 meshed with it to rotate counterclockwise, and then the gear 31 will drive the third transmission plate 27 meshed with it to rotate counterclockwise, so that the driven rod 26 at the bottom of the third transmission plate 27 rotates counterclockwise at the bottom of the reaction vessel 3, so that the stirring rod 10 and the driven rod 26 will respectively drive the upper stirring blade 11 and the lower stirring blade 28 to stir in two directions in the reaction vessel 3 at the same time, so that the material inside the reaction vessel 3 can be fully reacted.

[0029] After the stirring is completed, the second motor 13 is operated to drive the rotating member 14 on its output end to rotate, and one end of the horizontal portion of the swing rod 9 will move in the sliding groove 19 with the rotation of the rotating member 14, and then the swing rod 9 will repeatedly move back and forth in the swing groove 8 with the fixed rod 15 as the center, and the top end of the swing rod 9 is threadedly connected to the bottom end of the connecting rod 17, so that the connecting rod 17 can shake back and forth at the bottom of the reaction vessel 3 with the connecting member 16 as the center, and finally the reaction vessel 3 is shaken between the two supporting side plates 2, so as to complete the vibration after the reaction.

[0030] After the reaction is completed, the threaded rod 7 on the outside of the supporting side plates 2 on both sides is twisted outward to make the end of the threaded rod 7 located in the circular notch disengage from the slot 22 in the limiting rod 21, and then the connecting nut 18 is twisted to separate the connecting nut 18 from the top of the swing rod 9, and then the two handles 6 on the sides of the reaction vessel 3 are held and lifted upward to make the limiting rod 21 disengage from the circular notch on the limiting block 20, and finally the reaction vessel 3 can be removed from between the two supporting side plates 2 on the base 1, and the reacted material inside the reaction vessel 3 can be sampled.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] 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. An EPS reactor capable of reducing foam volume, comprising a base (1), characterized in that: Support side plates (2) are fixedly mounted on both sides of the top of the base (1); a reaction vessel (3) capable of swinging forward and backward is arranged between the two support side plates (2); limiting blocks (20) are fixedly mounted on the upper inner sides of the two support side plates (2); and circular notches are provided on the two limiting blocks (20); limiting rods (21) are fixedly mounted on the tops of both sides of the reaction vessel (3); and the two limiting rods (21) on both sides of the reaction vessel (3) are respectively located in the circular notches on the two limiting blocks (20) and are capable of rotating therein; and slots are provided on the ends of the two limiting rods (21) away from the reaction vessel (3). (22), the top of each of the supporting side plates (2) is threadedly connected with a threaded rod (7), and one end of the threaded rod (7) passes through the supporting side plate (2) and extends into a circular notch on the stop block (20), and one end of the threaded rod (7) located in the circular notch is inserted into a slot (22) in the stop rod (21), a cover (4) is provided on the top of the reaction vessel (3), and a first motor (5) is fixedly mounted on the top of the cover (4), an output end of the first motor (5) passes through the cover (4) and a stirring rod (10) is fixedly mounted on the output end, and three sets of upper stirring blades (11) are fixedly mounted on the stirring rod (10).

2. The EPS reactor capable of reducing foaming amount according to claim 1, characterized in that: A fixed block (24) is fixedly mounted at the middle position of the bottom of the inner cavity of the reaction vessel (3); a rotatable driven rod (26) is arranged inside the fixed block (24); a third transmission plate (27) is fixedly mounted on the top of the driven rod (26); and a tooth pattern is arranged on the top of the third transmission plate (27); a group of lower stirring blades (28) are also fixedly mounted on the driven rod (26); and two handles (6) are symmetrically mounted on the side of the reaction vessel (3).

3. The EPS reactor capable of reducing foaming amount according to claim 2, characterized in that: A fixed tube (29) is arranged above the third transmission plate (27), support rods (30) are fixedly connected to both sides of the outer wall of the fixed tube (29), and the ends of the two support rods (30) away from the fixed tube (29) are respectively fixedly connected to both sides of the inner wall of the reaction vessel (3), and a rotatable gear (31) is also installed on the side of the fixed tube (29), and the bottom of the gear (31) is meshed with the tooth pattern on the top of the third transmission plate (27). A rotatable second transmission plate (32) is arranged on the top of the fixed tube (29), and the top and bottom of the second transmission plate (32) are both provided with tooth patterns, and the top of the gear (31) is meshed with the tooth pattern on the bottom of the second transmission plate (32).

4. The EPS reactor capable of reducing foaming amount according to claim 3, characterized in that: A bearing (34) is fixedly installed inside the fixed tube (29), an insertion rod (33) is fixedly connected to the middle position of the bottom of the second transmission plate (32), and the bottom end of the insertion rod (33) is inserted into the fixed tube (29) and fixedly connected to the bearing (34).

5. The EPS reactor capable of reducing foaming amount according to claim 2, characterized in that: An elliptical groove (35) is provided inside the fixed block (24); an elliptical sphere (25) is fixedly mounted on one end of the driven rod (26) inserted into the fixed block (24); and the elliptical sphere (25) is located inside the elliptical groove (35) and is capable of rotating therein.

6. The EPS reactor capable of reducing foaming amount according to claim 5, characterized in that: The inner wall of the elliptical groove (35) at the opening of the fixed block (24) is evenly provided with four circular grooves, and a rotatable limiting ball (37) is arranged inside each of the four circular grooves. The driven rod (26) is provided with an annular sliding groove (36), and the annular sliding groove (36) and the four limiting balls (37) are located at the same horizontal height. The parts of the four limiting balls (37) extending out of the circular groove are all located inside the annular sliding groove (36) and can slide therein.

7. The EPS reactor capable of reducing foaming amount according to claim 1, characterized in that: A first transmission plate (23) is fixedly mounted on the bottom end of the stirring rod (10), and teeth are arranged at the bottom of the first transmission plate (23). When the cover (4) is closed on the reaction vessel (3), the teeth at the bottom of the first transmission plate (23) at the bottom end of the stirring rod (10) are meshed and connected with the teeth at the top of the second transmission plate (32).

8. The EPS reactor capable of reducing foaming amount according to claim 1, characterized in that: A storage groove (12) is provided inside the base (1), a second motor (13) is fixedly mounted inside the storage groove (12), and a rotating member (14) is fixedly mounted on the output end of the second motor (13); a longitudinal swing groove (8) is provided on the top of the base (1), and the swing groove (8) is connected to the storage groove (12); a fixed rod (15) is fixedly mounted on the side of the inner wall of the storage groove (12) close to the swing groove (8), and a swing rod (9) that can rotate around the fixed rod (15) is provided on the fixed rod (15), the swing rod (9) is L-shaped, and the vertical portion of the swing rod (9) passes through the swing groove (8) and extends to the top of the base (1), and one end of the horizontal portion of the swing rod (9) is slidably mounted on the rotating member (14).

9. The EPS reactor capable of reducing foaming amount according to claim 1, characterized in that: A connecting piece (16) is fixedly mounted at the middle position of the bottom of the reaction vessel (3), a connecting rod (17) which can rotate around the connecting piece (16) is sleeved on the connecting piece (16), and a rotatable connecting nut (18) is provided at the bottom of the connecting rod (17), and the connecting nut (18) can be threadedly connected to the top end of the swing rod (9).

10. The EPS reactor capable of reducing foaming amount according to claim 8, characterized in that: A sliding groove (19) is provided on the side surface of the rotating member (14), and the sliding groove (19) is in an up-and-down undulating shape and surrounds the side surface of the rotating member (14). A transverse end portion of the swing rod (9) is slidably mounted in the sliding groove (19) on the side surface of the rotating member (14) and is capable of sliding therein.

Images