Feeding mechanism for producing 4, 4 '-diaminodiphenyl methane

Abstract

The utility model relates to the technical field of diaminodiphenylmethane production, in particular to a 4, 4 '-diphenylmethane production device. The feeding mechanism for 4, 4 '-diaminodiphenyl methane production comprises a reaction kettle and a feeding mechanism, the feeding mechanism comprises a feeding pipe, a liquid conveying pipe, a connecting assembly, a water pump, a storage box, a mounting base, a rotating roller, a baffle and a fixing assembly, the feeding pipe is fixedly connected and communicated with the upper portion of the reaction kettle, and the feeding pipe is detachably connected with one end of the liquid conveying pipe through the connecting assembly; the storage box is fixedly connected and communicated with the other end of the liquid conveying pipe, the water pump is arranged on the liquid conveying pipe, the mounting base is fixedly connected with the feeding pipe, the rotating roller is rotationally connected with the mounting base and the feeding pipe and extends into the feeding pipe, the baffle is fixedly connected with the rotating roller, and the fixing assembly is arranged on the mounting base. The speed of the phenol solution entering the reaction kettle can be changed according to the reaction condition through the feeding mechanism, so that the condensation reaction effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to diamino diphenyl methane production technical field especially relates to a kind of feeding mechanism for 4,4'-diamino diphenyl methane production. BACKGROUND

[0002] 4,4'-diamino diphenyl methane (4,4'-Methylenedianiline, simply called MDA) is an important organic compound, widely used in rubber additives, dyes, insulating materials and other fields.

[0003] In the prior art, condensation reaction needs to be carried out in the production process of 4,4'-diamino diphenyl methane. The basic principle of condensation reaction is that aniline and formaldehyde react under alkaline conditions to produce 4,4'-diamino diphenyl methane. In this reaction, two aniline molecules and one formaldehyde molecule undergo condensation reaction under the action of sodium hydroxide to produce 4,4'-diamino diphenyl methane and water.

[0004] In the prior art, phenol solution is directly added to the reaction kettle, and the amount of phenol solution cannot be changed according to the reaction condition, resulting in poor condensation reaction effect. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a kind of feeding mechanism for 4,4'-diamino diphenyl methane production, to solve the problem that, in the prior art, phenol solution is directly added to the reaction kettle, and the amount of phenol solution cannot be changed according to the reaction condition, resulting in poor condensation reaction effect.

[0006] To achieve the above-mentioned purpose, the utility model provides a kind of feeding mechanism for 4,4'-diamino diphenyl methane production, including reaction kettle and feeding mechanism, the feeding mechanism includes feed pipe, infusion tube, connecting assembly water pump, storage tank, mounting seat, rotating roller, baffle and fixing assembly, the feed pipe is fixedly connected with the upper portion of the reaction kettle and is connected, the feed pipe is detachably connected with one end of the infusion tube through the connecting assembly, the storage tank is fixedly connected with the other end of the infusion tube and is connected, the water pump is arranged on the infusion tube, the mounting seat is fixedly connected with the feed pipe, the rotating roller is rotatably connected with the mounting seat and the feed pipe and extends into the feed pipe, the baffle is fixedly connected with the rotating roller, and the fixing assembly is arranged on the mounting seat.

[0007] Among them, the connecting assembly includes fixed ring, bolt and nut, the fixed ring is attached to the outer wall of the infusion tube, the bolt is threadedly connected with one end of the fixed ring, and the nut is threadedly connected with the bolt.

[0008] The fixed assembly comprises a mounting plate, a limiting rod and a telescopic set, the rotating roller has a plurality of limiting holes, the mounting plate is fixedly connected with the mounting seat, the limiting rod is slidably connected with the mounting plate and extends into the limiting hole, and the telescopic set is arranged between the mounting seat and the limiting rod.

[0009] The telescopic set comprises a moving block and a telescopic spring, the moving block is fixedly connected with the limiting rod and located at one end of the limiting rod, and the two ends of the telescopic spring are fixedly connected with the moving block and the mounting seat respectively, and the limiting rod is located in the telescopic spring.

[0010] The feeding mechanism further comprises a hollow pipe and a scale, the two ends of the hollow pipe are fixedly connected with the storage box and are communicated, and the scale is fixedly connected with the storage box and located at one end of the hollow pipe.

[0011] The feeding mechanism for 4,4'-diamino diphenyl methane production of the utility model, when producing, phenol solution is added into the reaction kettle for condensation reaction, the water pump is started, the water pump is used for conveying the phenol solution in the storage box to the infusion tube, the phenol solution enters the reaction kettle through the feeding pipe, when adjusting the adding amount of the phenol solution according to the chemical condition in the reaction kettle, the rotating roller is rotated, the rotating roller drives the baffle to rotate, until the baffle rotates to the appropriate position, then the rotating roller and the baffle are fixed through the fixed assembly, in this way, the speed of the phenol solution entering the reaction kettle is adjusted, and the effect of the condensation reaction is improved. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced.

[0013] Figure 1 It is the structure schematic view of the feeding mechanism for 4,4'-diamino diphenyl methane production of the utility model.

[0014] Figure 2 It is the structure schematic view of the feeding mechanism for 4,4'-diamino diphenyl methane production of the utility model. Figure 1 It is the enlarged view of the partial structure of A of the feeding mechanism for 4,4'-diamino diphenyl methane production of the utility model.

[0015] Figure 3 It is the front view of the feeding mechanism for 4,4'-diamino diphenyl methane production of the utility model.

[0016] Figure 4 It is the sectional view of the feeding mechanism for 4,4'-diamino diphenyl methane production of the utility model.

[0017] 101 - reaction kettle, 102 - feed pipe, 103 - infusion tube, 104 - water pump, 105 - storage tank, 106 - mounting seat, 107 - rotating roller, 108 - limiting hole, 109 - mounting plate, 110 - limiting rod, 111 - telescopic spring, 112 - baffle, 113 - moving block, 114 - fixed ring, 115 - nut, 116 - bolt, 117 - scale, 118 - hollow tube. DETAILED DESCRIPTION

[0018] Please refer to Figures 1 to 4 , wherein, Figure 1 is the structure diagram of the feeding mechanism for 4, 4'-diamino diphenyl methane production of the utility model, Figure 2 is the Figure 1 A place partial structure of the utility model, Figure 3 is the front view of the feeding mechanism for 4, 4'-diamino diphenyl methane production of the utility model, Figure 4 is the sectional view of the feeding mechanism for 4, 4'-diamino diphenyl methane production of the utility model.

[0019] The utility model provides a kind of feeding mechanism for 4, 4'-diamino diphenyl methane production, including reaction kettle 101 and feeding mechanism, the feeding mechanism includes feed pipe 102, hollow tube 118, scale 117, infusion tube 103, connecting assembly water pump 104, storage tank 105, mounting seat 106, rotating roller 107, baffle 112 and fixed assembly, the connecting assembly includes fixed ring 114, bolt 116 and nut 115, the fixed assembly includes mounting plate 109, limiting rod 110 and telescopic sleeve kit, the rotating roller 107 has multiple limiting holes 108, the telescopic sleeve kit includes moving block 113 and telescopic spring 111, by the foregoing scheme, it is solved in the prior art, directly phenol solution is added to reaction kettle 101, can not according to the reaction condition change the addition amount of phenol solution, lead to condensation reaction effect is not good The problem of poor.

[0020] In the embodiment, the feeding pipe 102 is fixedly connected with the upper portion of the reaction kettle 101 and communicates with the reaction kettle 101, the feeding pipe 102 is detachably connected with one end of the infusion pipe 103 through the connecting assembly, the storage box 105 is fixedly connected with the other end of the infusion pipe 103 and communicates with the infusion pipe 103, the water pump 104 is arranged on the infusion pipe 103, the mounting seat 106 is fixedly connected with the feeding pipe 102, the rotating roller 107 is rotatably connected with the mounting seat 106 and the feeding pipe 102 and extends into the feeding pipe 102, the baffle 112 is fixedly connected with the rotating roller 107, the fixing assembly is arranged on the mounting seat 106, and when the 4,4'-diaminodiphenyl methane production feeding mechanism is used for production, phenol solution is added into the reaction kettle 101 for condensation reaction, the water pump 104 is started, the water pump 104 sends the phenol solution in the storage box 105 into the infusion pipe 103, the phenol solution enters the reaction kettle 101 through the feeding pipe 102, when the adding amount of the phenol solution is adjusted according to the chemical condition in the reaction kettle 101, the rotating roller 107 is rotated, the rotating roller 107 drives the baffle 112 to rotate, until the baffle 112 is rotated to the appropriate position, the rotating roller 107 and the baffle 112 are fixed through the fixing assembly, so that the speed of the phenol solution entering the reaction kettle 101 is adjusted, and the effect of the condensation reaction is improved.

[0021] Further, the fixing ring 114 is attached to the outer wall of the infusion pipe 103, the bolt 116 is threadedly connected with one end of the fixing ring 114, and the nut 115 is threadedly connected with the bolt 116.

[0022] In the embodiment, when the infusion pipe 103 is installed, the feeding pipe 102 is inserted into the infusion pipe 103, at the moment, the fixing ring 114 is located outside the infusion pipe 103 and the feeding pipe 102, the diameter of the fixing ring 114 is reduced through the bolt 116 and the nut 115, so that the fixing ring 114 tightly clamps the infusion pipe 103 and the feeding pipe 102, and it is ensured that the phenol solution does not flow out from the connection position of the infusion pipe 103 and the feeding pipe 102, and meanwhile, the connection mode is simple, so that the infusion pipe 103 and the feeding pipe 102 are convenient to install and detach.

[0023] Further, the mounting plate 109 is fixedly connected with the mounting seat 106, the limiting rod 110 is slidably connected with the mounting plate 109 and extends into the limiting hole 108, and the telescopic sleeve assembly is arranged between the mounting seat 106 and the limiting rod 110.

[0024] Further, the moving block 113 is fixedly connected with the limiting rod 110 and located at one end of the limiting rod 110, both ends of the telescopic spring 111 are fixedly connected with the moving block 113 and the mounting seat 106 respectively, and the limiting rod 110 is located in the telescopic spring 111.

[0025] In the embodiment, when the feeding mechanism for producing 4, 4'-diaminodiphenyl methane is produced, the phenol solution is added into the reaction kettle 101 for condensation reaction, the water pump 104 is started, the water pump 104 sends the phenol solution in the storage tank 105 into the infusion tube 103, the phenol solution enters the reaction kettle 101 through the feeding pipe 102, when the adding amount of the phenol solution is adjusted according to the chemical condition in the reaction kettle 101, the limiting rod 110 is pulled upwards, the telescopic spring 111 is stretched, the limiting rod 110 is separated from the limiting hole 108, the rotating roller 107 is rotated, the rotating roller 107 drives the baffle 112 to rotate, until the baffle 112 is rotated to the appropriate position, at this time, the limiting rod 110 is aligned with the corresponding limiting hole 108, the limiting rod 110 is released, the telescopic spring 111 is reset and shrunk, and drives the limiting rod 110 to insert into the corresponding limiting hole 108, the rotating roller 107 and the baffle 112 are fixed, so as to adjust the speed of the phenol solution entering the reaction kettle 101, and further improve the effect of the condensation reaction.

[0026] Further, both ends of the hollow tube 118 are fixedly connected with the storage tank 105 and are communicated, and the scale 117 is fixedly connected with the storage tank 105 and located at one end of the hollow tube 118.

[0027] In the embodiment, since the hollow tube 118 is communicated with the storage tank 105, the phenol solution enters the hollow tube 118, the hollow tube 118 can reflect the change of the depth of the phenol solution in the storage tank 105, and the scale 117 is convenient for the operator to record the change amount of the phenol solution.

[0028] The utility model discloses 4, 4 '-diamino diphenyl methane production is used to add the mechanism of production when producing, and the phenol solution is added to the reaction kettle 101 and carries out the condensation reaction, starts the water pump 104, the water pump 104 is with the phenol solution in the storage tank 105 the phenol solution is in the infusion pipe 103, and the phenol solution is entered into the reaction kettle 101 through the feed pipe 102 again, when the adding amount of phenol solution is adjusted according to the chemical situation in the reaction kettle 101, the limiting rod 110 is pulled upwards, the telescopic spring 111 is stretched, makes the limiting rod 110 leave the limiting hole 108, rotates the rotating roller 107 again, the rotating roller 107 drives the baffle 112 to rotate, until the baffle 112 rotates to the appropriate position, at this time the limiting rod 110 is aligned with the corresponding limiting hole 108, loosens the limiting rod 110, the telescopic spring 111 resets the contraction, and drives the limiting rod 110 inserts in the corresponding limiting hole 108, fixes the rotating roller 107 and the baffle 112, and the speed of the phenol solution entering the reaction kettle 101 is adjusted in this way, and the effect of the condensation reaction is improved further.

[0029] The above disclosed is only one preferred embodiment of the application, which cannot limit the scope of the application, and the person skilled in the art can understand that the whole or part of the above-mentioned embodiment can be implemented, and the equivalent changes made according to the claims of the application still belong to the scope covered by the application.

Claims

1. A feeding mechanism for 4,4'-diaminodiphenyl methane production, comprising a reaction kettle, characterized in that, It further comprises a feeding mechanism, the feeding mechanism comprises a feeding pipe, a liquid conveying pipe, a connecting assembly water pump, a storage tank, a mounting seat, a rotating roller, a baffle and a fixing assembly, the feeding pipe is fixedly connected with the upper part of the reaction kettle and is connected, the feeding pipe is detachably connected with one end of the liquid conveying pipe through the connecting assembly, the storage tank is fixedly connected with the other end of the liquid conveying pipe and is connected, the water pump is arranged on the liquid conveying pipe, the mounting seat is fixedly connected with the feeding pipe, the rotating roller is rotatably connected with the mounting seat and the feeding pipe and extends into the feeding pipe, the baffle is fixedly connected with the rotating roller, and the fixing assembly is arranged on the mounting seat.

2. The feeding mechanism for 4,4'-diaminodiphenyl methane production according to claim 1, characterized in that, The connecting assembly comprises a fixed ring, a bolt and a nut, the fixed ring is attached to the outer wall of the liquid conveying pipe, the bolt is threadedly connected with one end of the fixed ring, and the nut is threadedly connected with the bolt.

3. The feeding mechanism for 4,4'-diaminodiphenyl methane production according to claim 2, characterized in that, The fixing assembly comprises a mounting plate, a limiting rod and an extension sleeve, the rotating roller has a plurality of limiting holes, the mounting plate is fixedly connected with the mounting seat, the limiting rod is slidably connected with the mounting plate and extends into the limiting hole, and the extension sleeve is arranged between the mounting seat and the limiting rod.

4. The feeding mechanism for 4,4'-diaminodiphenyl methane production according to claim 3, characterized in that, The extension sleeve comprises a moving block and an extension spring, the moving block is fixedly connected with the limiting rod and located at one end of the limiting rod, and the extension spring is fixedly connected with the moving block and the mounting seat at both ends and the limiting rod is located in the extension spring.

5. The feeding mechanism for 4,4'-diaminodiphenyl methane production according to claim 4, characterized in that, The feeding mechanism further comprises a hollow pipe and a scale, both ends of the hollow pipe are fixedly connected with the storage tank and are connected, and the scale is fixedly connected with the storage tank and located at one end of the hollow pipe.

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