Stirring and mixing device for formaldehyde production

Abstract

The utility model discloses a stirring and mixing device for formaldehyde production, and relates to the technical field of stirring equipment, the stirring and mixing device for formaldehyde production comprises a tank body, a rotating shaft is rotatably arranged in the tank body, the outer side of the rotating shaft is fixedly connected with a spiral blade, and the spiral blade is fixedly connected with the tank body. A second rotating cylinder matched with the spiral blade is arranged on the outer side of the spiral blade, a fixing disc is fixedly connected to the bottom end of the rotating shaft, a first rotating cylinder is fixedly connected to the top of the fixing disc, a plurality of openings are formed in the bottom of the first rotating cylinder, and drainage plates are fixedly connected to one sides of the openings. According to the stirring and mixing device for formaldehyde production, a solution at the bottom of the tank body is conveyed to the position above the solution under the action of the spiral blades, so that the formaldehyde solution and a polymerization inhibitor are mixed more rapidly and uniformly, the mixing efficiency is improved, the polymerization inhibitor is rapidly dispersed after flowing into the formaldehyde solution through a flow guide ring and a flow guide groove, and the situation that the concentration of the local polymerization inhibitor of the formaldehyde solution is too high is prevented; the uniformity and the stability of the solution are influenced.

Description

TECHNICAL FIELD

[0001] The utility model relates to agitating equipment technical field, concretely is a kind of agitating mixing device for formaldehyde production. BACKGROUND

[0002] Formaldehyde is important chemical raw material and reagent, its use is extremely extensive, mainly used in synthetic resin, plastic, dye, pharmaceutical, spice etc..Formaldehyde is generally stored and transported in the form of aqueous solution, due to the existence of a small amount of impurities, it is extremely easy to form crystalline precipitate by self-polymerization, in industry, methanol is often added to formaldehyde solution as polymerization inhibitor to prevent the condensation phenomenon of formaldehyde solution after production, affect the quality of formaldehyde solution and daily use.

[0003] The existing formaldehyde solution production is usually stirred by stirring device, then slowly add polymerization inhibitor, since the density of polymerization inhibitor is slightly higher than that of formaldehyde, it is often necessary to spend a lot of time for stirring during mixing, to ensure that the solution in the stirring device is mixed more uniformly, affect the production efficiency of formaldehyde solution, when adding polymerization inhibitor, formaldehyde solution local polymerization inhibitor concentration is also easy to be too high, affect the uniformity and stability of solution. SUMMARY

[0004] The utility model aims at providing a kind of agitating mixing device for formaldehyde production to solve the problem of long time required for solution mixing in prior art, local concentration is easy to be too high when solution adds polymerization inhibitor.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of agitating mixing device for formaldehyde production, including tank body, rotatingly installed with rotating shaft in the tank body, the rotating shaft outer side is fixedly connected with helical blade, the helical blade outer side is provided with the second rotary drum matched with helical blade, the rotating shaft bottom end is fixedly connected with fixed disc, the fixed disc top is fixedly connected with first rotary drum, the first rotary drum bottom is provided with a plurality of openings, a plurality of the opening one side is fixedly connected with drainage plate, the first rotary drum inner wall top is rotatably connected with second rotary drum, second rotary drum bottom solution is transported to the top of second rotary drum by helical blade and second rotary drum.

[0006] Preferably, the tank body top is fixedly connected with motor, the motor output end is fixedly connected with rotating shaft, the rotating shaft top end is fixedly connected with first gear, the first gear outer side is engagedly connected with three second gears, three the second gears are rotatably installed in tank body interior top.

[0007] Preferably, two of the three second gears are provided with fixed block between, three the fixed block top is fixedly connected with tank body, three the fixed block bottom is fixedly connected with limit plate, three the second gear outer side is engagedly connected with internal gear, the internal gear is rotatably connected in limit plate top.

[0008] Preferably, the inner gear bottom is fixedly connected with a plurality of fixed rods, the bottoms of the plurality of fixed rods are fixedly connected with a second rotating drum, the outer side of the top of the second rotating drum is fixedly connected with a flow guide ring, the top of the flow guide ring is provided as a conical surface, a plurality of flow guide grooves are arranged in a circumferential array on the top of the flow guide ring, and the flow guide ring and the flow guide grooves throw out the solution from the top of the second rotating drum to the surroundings.

[0009] Preferably, the outer side of the second rotating drum is fixedly connected with a plurality of stirring plates in a circumferential array, the plurality of stirring plates are arranged in a staggered manner, and the inner wall of the tank body is fixedly connected with a plurality of flow around plates in a circumferential array.

[0010] Preferably, the top of the tank body is fixedly connected with a metering pump, the output end of the metering pump is fixedly connected with a guide pipe, the guide pipe penetrates through the tank body and is fixedly connected with the tank body, the bottom of the guide pipe corresponds to the position of the conical surface of the flow guide ring, and when the polymerization inhibitor flows to the conical surface of the flow guide ring, the polymerization inhibitor is thrown to the upper side of the solution in the tank body together with the solution on the top of the flow guide ring and the flow guide grooves.

[0011] Preferably, one side of the top of the tank body is fixedly connected with a feeding port, the feeding port penetrates through the tank body and is connected with the tank body in communication, the bottom end in the tank body is provided in a funnel shape, and the bottom center of the tank body is fixedly connected with a discharging port.

[0012] Compared with the prior art, the application has the beneficial effects that:

[0013] 1. The drainage plate of the application guides the formaldehyde solution at the bottom of the tank body into the first rotating drum, the solution in the first rotating drum moves upwards under the action of the spiral blades and pours out from the top of the second rotating drum, the solution at the bottom of the tank body is sent to the upper side of the solution, so that the formaldehyde solution and the polymerization inhibitor are mixed more quickly and uniformly, and the mixing efficiency is improved.

[0014] 2. The application throws out the just-mixed solution through the flow guide ring and the flow guide grooves, so that the polymerization inhibitor flows into the formaldehyde solution and is quickly dispersed in the formaldehyde solution, the local concentration of the polymerization inhibitor in the formaldehyde solution is prevented from being too high, the uniformity and stability of the solution are affected, and the overall performance of the solution is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is an internal structure sectional view of the application;

[0016] Figure 2 It is an inner gear structure schematic view of the application;

[0017] Figure 3 It is a drainage plate structure schematic view of the application;

[0018] Figure 4The utility model discloses a whole structure schematic view.

[0019] The figure mark is: 1, tank body, 2, rotating shaft, 3, spiral blade, 4, first gear, 5, second gear, 6, internal gear, 7, fixed block, 8, limiting plate, 9, fixed link, 10, second rotating cylinder, 11, flow guide ring, 12, flow guide groove, 13, stirring plate, 14, fixed disc, 15, first rotating cylinder, 16, opening, 17, drainage plate, 18, flow around plate, 19, guide pipe, 20, metering pump, 21, discharge port, 22, inlet. DETAILED DESCRIPTION

[0020] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the range of protection of the utility model.

[0021] Embodiment: as Figure 1 The utility model discloses a kind of technical schemes of stirring and mixing device for formaldehyde production, including tank body 1, rotating installation is rotated in the tank body 1 inside rotating shaft 2, rotating shaft 2 outer side is fixedly connected with spiral blade 3, spiral blade 3 outer side is provided with the second rotating cylinder 10 compatible with spiral blade 3, rotating shaft 2 bottom end is fixedly connected with fixed disc 14, and fixed disc 14 top is fixedly connected with first rotating cylinder 15, and multiple openings 16 are set in the bottom of first rotating cylinder 15, and multiple opening 16 side is fixedly connected with drainage plate 17, and the top of first rotating cylinder 15 inner wall is rotatably connected with second rotating cylinder 10, and the solution at the bottom of second rotating cylinder 10 is transported to the top of second rotating cylinder 10 by spiral blade 3 and second rotating cylinder 10.

[0022] As Figure 1 , Figure 2 And Figure 4 The top of rotating shaft 2 is fixedly connected with first gear 4, and the outer side of first gear 4 is engagedly connected with three second gears 5, and three second gears 5 are rotatably installed in the top inside tank body 1, and fixed block 7 is arranged between every two of three second gears 5, and the top of three fixed blocks 7 is fixedly connected with tank body 1, and the bottom of three fixed blocks 7 is fixedly connected with limiting plate 8, and the outer side of three second gears 5 is engagedly connected with internal gear 6, and internal gear 6 is rotatably connected to the top of limiting plate 8.

[0023] As Figure 1 , Figure 3 And Figure 4As shown, the inner gear 6 bottom fixedly connected with a plurality of fixed rods 9, a plurality of the fixed rods 9 bottom with the second rotary drum 10 fixedly connected, the second rotary drum 10 top outside fixedly connected with the flow guide ring 11, the flow guide ring 11 top is set to the conical surface, the flow guide ring 11 top is circularly arrayed and is provided with a plurality of flow guide grooves 12, flow guide ring 11 and flow guide groove 12 pour out the solution at the top of the second rotary drum 10 to the four around, the second rotary drum 10 outside is circularly arrayed and is fixedly connected with a plurality of stirring plates 13, a plurality of the stirring plates 13 are staggered, the tank body 1 inner wall is circularly arrayed and is fixedly connected with a plurality of flow around plates 18, the tank body 1 top fixedly connected with metering pump 20, the metering pump 20 output end fixedly connected with guide pipe 19, the guide pipe 19 penetrates tank body 1 and is fixedly connected with tank body 1, the guide pipe 19 bottom with the flow guide ring 11 conical surface position corresponding, when the polymerization inhibitor flows to the flow guide ring 11 conical surface, together with the solution of the flow guide ring 11 and flow guide groove 12 top is thrown to the solution above the tank body 1 inside, the tank body 1 top is provided with one side fixedly connected with inlet 22, the inlet 22 penetrates tank body 1 and is connected with tank body 1, the tank body 1 inside bottom is set to funnel shape, the tank body 1 bottom center fixedly connected with discharge port 21.

[0024] The utility model discloses in using time: formaldehyde solution from inlet 22 enters the tank body 1 inside, starts motor and metering pump 20, the motor work makes rotating shaft 2 drive first gear 4 rotation, first gear 4 drives the inner gear 6 reverse rotation through second gear 5, the inner gear 6 drives second rotary drum 10 rotation through fixed rod 9, at this moment, a plurality of stirring plates 13 of second rotary drum 10 outside are to formaldehyde solution and are stirred, while the first gear 4 rotation drives fixed disc 14 rotation, fixed disc 14 drives first rotary drum 15 and a plurality of drainage plates 17 rotation, a plurality of drainage plates 17 install with the first rotary drum 15 outer wall and present a certain angle, can pass through drainage plate 17 and be guided into the formaldehyde solution of tank body 1 bottom to first rotary drum 15 inside, rotating shaft 2 rotation drives helical blade 3 rotation, the solution in first rotary drum 15 is moved upwards under the action of helical blade 3 and pours out from the top of second rotary drum 10, through the rotation of drainage plate 17 and helical blade 3, the solution of tank body 1 bottom is sent to the solution above, so that formaldehyde solution and polymerization inhibitor mix more quickly and evenly, improve mixing efficiency.

[0025] The working mode of the metering pump 20 is the existing mature technology, which will not be described in detail here. The metering pump 20 can uniformly and quantitatively pump the formaldehyde polymerization inhibitor into the guide pipe 19, and the polymerization inhibitor flows to the guide ring 11 along the guide pipe 19 and mixes with the formaldehyde solution overflowing from the top of the second rotating cylinder 10. The mixed solution is thrown out through the guide ring 11 and the guide groove 12, so that the mixed solution returns to the inside of the tank body 1 for stirring. The guide ring 11 and the guide groove 12 can make the polymerization inhibitor flow into the formaldehyde solution and quickly spread in the formaldehyde solution, prevent the local concentration of the polymerization inhibitor in the formaldehyde solution from being too high, affect the uniformity and stability of the solution, ensure the overall performance of the solution, and prevent the local concentration of the polymerization inhibitor in the formaldehyde solution from being too high. The multiple flow baffles 18 installed in the tank body 1 can block the stirred solution, increase the turbulence degree of the solution, and thus improve the mixing efficiency. After mixing, the uniformly mixed solution is collected from the discharge port 21.

[0026] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims.

Claims

1. A stirring and mixing device for formaldehyde production, characterized by: The utility model provides a kind of rotary drum dryer, including tank body (1), the rotary shaft (2) is rotatably installed inside the tank body (1), the rotary shaft (2) outside is fixedly connected with helical blade (3), the helical blade (3) outside is provided with the second rotating drum (10) compatible with helical blade (3), the rotary shaft (2) bottom is fixedly connected with fixed disc (14), the fixed disc (14) top is fixedly connected with first rotating drum (15), the first rotating drum (15) bottom is provided with multiple openings (16), multiple the opening (16) one side is fixedly connected with drainage plate (17), the first rotating drum (15) inner wall top is rotatably connected with second rotating drum (10).

2. The stirring and mixing device for formaldehyde production according to claim 1, characterized in that: The tank body (1) top is fixedly connected with motor, and the motor output end is fixedly connected with the rotary shaft (2), and the rotary shaft (2) top is fixedly connected with first gear (4), and the first gear (4) outside is engagedly connected with three second gears (5), and three The second gear (5) is rotatably installed in the tank body (1) inside top.

3. The stirring and mixing device for formaldehyde production according to claim 2, characterized in that: Three The second gear (5) is rotatably installed in the tank body (1) inside top.

4. The stirring and mixing device for formaldehyde production according to claim 3, characterized in that: The inner gear (6) bottom is fixedly connected with multiple fixed rods (9), and multiple The fixed rod (9) bottom is fixedly connected with the second rotating drum (10), and the second rotating drum (10) top outside is fixedly connected with the flow guide ring (11), and the flow guide ring (11) top is set as conical surface, and the flow guide ring (11) top is circularly arranged and is provided with multiple flow guide grooves (12).

5. The stirring and mixing device for formaldehyde production according to claim 4, characterized in that: The second rotating drum (10) outside is circularly arranged and is fixedly connected with multiple stirring plates (13), and multiple The stirring plate (13) is staggered, and the tank body (1) inner wall is circularly arranged and is fixedly connected with multiple flow around plates (18).

6. The stirring and mixing device for formaldehyde production according to claim 1, characterized in that: The tank body (1) top is fixedly connected with metering pump (20), and the metering pump (20) output end is fixedly connected with guide pipe (19), and the guide pipe (19) penetrates tank body (1) and is fixedly connected with tank body (1), and the guide pipe (19) bottom is corresponding with the flow guide ring (11) conical surface position.

7. The stirring and mixing device for formaldehyde production according to claim 1, characterized in that: The tank body (1) top is fixedly connected with inlet (22) on one side, and the inlet (22) penetrates tank body (1) and is connected with tank body (1), and the tank body (1) inside bottom is funnel-shaped, and the tank body (1) bottom center is fixedly connected with outlet (21).

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