CN218803318U

CN218803318U - Resin drying equipment

Info

Publication number: CN218803318U
Application number: CN202222858107.2U
Authority: CN
Inventors: 叶锐; 何志强; 邓博琳; 温晓雨; 钟诚
Original assignee: CHENGDU YULONG CHEMICAL CO LTD
Current assignee: CHENGDU YULONG CHEMICAL CO LTD
Priority date: 2022-10-28
Filing date: 2022-10-28
Publication date: 2023-04-07
Anticipated expiration: 2032-10-28

Abstract

The utility model discloses a resin drying equipment, include: the side wall of one side of the box body is provided with a box door which can be opened and closed; vertical plates are symmetrically arranged on two sides in the box body, and an air return cavity is formed between the outer wall of each vertical plate and the inner wall of the box body; a plurality of placing screens are arranged between the two vertical plates; a through hole is formed in the vertical plate and is communicated with the air return cavity; a concentration cavity is arranged at the top in the box body, and two sides of the concentration cavity are communicated with the return air cavity; the air spraying unit comprises an air spraying assembly, a ventilation pipe of the air spraying assembly is connected with an air distribution pipe, and the air distribution pipe is connected with an air heater; a heat exchange box; an air outlet at the bottom of the heat exchange box is connected with an air inlet end of the air heater; a heat exchange tube is arranged in the heat exchange box, the bottom end of the heat exchange tube is connected with the air return tube, and the top end of the heat exchange tube penetrates out of the heat exchange box; the return air pipe is connected with the concentration cavity through an exhaust fan. The utility model provides a resin drying equipment dries evenly, and heat utilization rate is high, and is energy-concerving and environment-protective.

Description

Resin drying equipment

Technical Field

The utility model relates to a resin production technical field especially relates to a resin drying equipment.

Background

The resin is generally an organic polymer which has a softening or melting range after being heated, tends to flow under an external force when softened, is solid, semisolid or liquid at normal temperature, and is classified into natural resins and synthetic resins. The natural resin refers to amorphous organic substances obtained from animal and plant secretions in nature, such as rosin, amber, shellac, and the like. The synthetic resin refers to a resin product obtained by chemical synthesis of simple organic matters or chemical reaction of some natural products, such as phenolic resin, polyvinyl chloride resin and the like, wherein the synthetic resin is a main component of plastics. Resin need carry out the stoving operation to it in process of production, and the operation of drying is carried out to most drying equipment at present to utilize hot-blastly, is about to place resin on a plurality of dishes of placing in the oven, utilizes hot-blastly that the air heater produced to dry the resin in blowing in the oven.

Patent document CN217257564U discloses a constant temperature stoving case is used in phenolic resin production relates to resin stoving technical field, and it includes stoving case body, the inside of stoving case body is equipped with rotary mechanism, rotary mechanism's below is equipped with stoving mechanism, the outer surface mounting of stoving case body has two symmetrical air-out valves, the outer surface mounting of stoving case body has the bin outlet, the below of stoving case body is equipped with the base, the last fixed surface of base is connected with articulated seat, the upper end of articulated seat is articulated mutually with the bottom surface of stoving case body, be equipped with pushing mechanism between base and the stoving case body, the surface of stoving case body articulates there is articulated door. The utility model discloses an air heater is opened in the cooperation design of air heater, communicating pipe and air outlet, and the hot-blast inside of arranging to stoving case body through the air outlet that the air heater produced can be dried the resin of placing above the stoving dish. However, hot moisture generated in the drying box in the patent is directly discharged through the air outlet valve, heat of the hot moisture cannot be utilized, and the heat is not recycled, so that heat loss is caused, and energy consumption is high.

SUMMERY OF THE UTILITY MODEL

An object of the present invention is to solve at least the above problems and/or disadvantages and to provide at least the advantages which will be described later.

In order to solve the deficiency of the prior art, the utility model provides a resin drying equipment, include:

the side wall of one side of the box body is provided with a box door which can be opened and closed; vertical plates are symmetrically arranged on two sides in the box body, and an air return cavity is formed between the outer wall of each vertical plate and the inner wall of the box body; a plurality of placing screens are arranged between the two vertical plates; through holes are formed in vertical plates positioned at two sides below the bottommost placing sieve, and the through holes are communicated with the air return cavity; a concentration cavity is arranged at the top in the box body, and two sides of the concentration cavity are communicated with the return air cavity;

the air injection unit comprises air injection assemblies with the number consistent with that of the placing screens, any air injection assembly is positioned above the placing screens, a ventilation pipe of the air injection assembly penetrates through the air return cavity to be connected with an air distribution pipe, and the middle part of the air distribution pipe is connected with the air heater through a connecting pipe;

the heat exchange box is provided with an air inlet pipe at the top and is fixed at the top of the box body; an air outlet at the bottom of the heat exchange box is connected with an air inlet end of the air heater; a heat exchange tube is arranged in the heat exchange box, the bottom end of the heat exchange tube is connected with a return air tube, and the top end of the heat exchange tube penetrates out of the heat exchange box; the return air pipe is connected with the top of the concentration cavity through an exhaust fan.

Preferably, the air injection assembly comprises an outer edge air pipe, an inner ring air pipe and a plurality of branch pipes arranged between the outer edge air pipe and the inner ring air pipe in a surrounding manner, and two ends of any branch pipe are respectively communicated with the outer edge air pipe and the inner ring air pipe; the bottom surfaces of the outer edge air pipe and the inner annular air pipe are both provided with air outlet holes, and the inner annular air pipe is connected with the ventilation pipe on the axis of the inner annular air pipe through a connecting branch pipe.

Preferably, a dehumidification box is installed on the air inlet pipe, and a pair of filter screens and adsorption filler filled between the filter screens are installed in the dehumidification box.

Preferably, the placing sieve comprises a sieve mesh and surrounding plates arranged around the sieve mesh, outer frames are arranged on two sides of the surrounding plates, sliding strips are arranged on the bottom wall of each outer frame, supporting plates are arranged at positions corresponding to the vertical plates, and sliding rails in sliding fit with the sliding strips are arranged on the supporting plates.

Preferably, a plurality of partition plates are respectively arranged on the inner walls of the two sides in the heat exchange box, the partition plates divide the interior of the heat exchange box to form bent air channels, and the heat exchange tubes are bent and arranged along the bent air channels.

Preferably, the air distribution pipe and the connecting pipe are respectively wrapped with an insulating layer.

Preferably, a heat insulation layer is arranged outside the box body.

The utility model discloses at least, include following beneficial effect: the box body is used for providing a drying environment place, and the box door and the box body are closed to form a sealed drying environment, so that the heat of hot air is prevented from being greatly dissipated; a plurality of placing sieves are arranged between the two vertical plates and used for placing resin to be dried, hot air generated by an air heater is sprayed out through the air spraying component after passing through the connecting pipe, the air distribution pipe and the ventilation pipe, the air spraying component is arranged above the placing sieves, so that the sprayed hot air is vertically blown to the resin placed on the placing sieves, the drying speed is high, the number of the air spraying components is consistent with that of the placing sieves, so that the resin on each layer of placing sieves is uniformly heated, and the drying is more uniform and sufficient; the outer wall of the vertical plate and the inner wall of the box body form a return air cavity, hot and wet air generated by hot air drying of resin in the box body enters the return air cavity through the through hole under the action of the exhaust fan, and the temperature of the vertical plate and the side wall of the box body is increased while the hot and wet air flows upwards in the return air cavity, so that the heat preservation of the box body is facilitated, the drying of the resin is accelerated, the drying efficiency is improved, and the primary utilization of the heat of the hot and wet air is realized; in hot moisture discharged to the heat exchange pipe through concentrating the chamber, external fresh air entered into the heat exchange incasement and absorbed the heat with the heat exchange tube contact, the air after having absorbed hot moisture waste heat had initial temperature, realized preheating to fresh air, and the time that the air after preheating enters into the air heater after heating to required temperature shortens, has reduced the energy consumption, realizes energy-concerving and environment-protective purpose.

The utility model has the advantages that the hot air is vertically blown to the resin through the arrangement of the air spraying component, the drying speed is improved, and each layer of placing sieve is in one-to-one correspondence with the air spraying component, so that the drying is uniform and sufficient; through the common cooperation of return air chamber and heat transfer case, realize the utilization twice of the hot humid air heat of box, improved the utilization efficiency to the energy, when reducing the loss of heat energy, also promote the inside air cycle circulation of box, do benefit to and guarantee the stoving effect, and hot humid air discharges and avoids the moisture to gather in the box for a long time effectively and influence the drying quality of resin.

Drawings

Fig. 1 is the structure schematic diagram of the resin drying equipment of the utility model.

Fig. 2 is a schematic structural diagram of the box body of the present invention.

Fig. 3 is a schematic view of the top structure of the placing screen of the present invention.

Fig. 4 is a schematic bottom view of the air injection assembly of the present invention.

Reference numerals: 1-box body, 11-box door, 2-vertical plate, 21-return air cavity, 22-through hole, 23-concentration cavity, 24-return air pipe, 3-placing sieve, 31-screen, 32-surrounding plate, 33-outer frame, 331-slide bar, 4-air spraying unit, 41-air spraying component, 411-outer edge air pipe, 412-inner annular air pipe, 413-branch pipe, 414-air outlet hole, 415-connecting branch pipe, 42-ventilation pipe, 5-air distribution pipe, 51-connecting pipe, 6-hot air blower, 7-heat exchange box, 71-air inlet pipe, 72-heat exchange pipe, 73-partition plate, 74-bent air duct, 8-exhaust fan, 9-dehumidification box, 91-filter screen, 92-adsorption filler, 10-support plate and 101-slide rail.

Detailed Description

The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.

It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.

Fig. 1-4 show the utility model discloses a resin drying equipment, include:

the side wall of one side of the box body 1 is provided with an openable box door 11, the box body 1 provides a drying environment place, and the box door 11 and the box body 1 are closed to form a sealed drying environment, so that the heat loss of hot air is avoided; vertical plates 2 are symmetrically arranged on two sides in the box body 1, and air return cavities 21 are formed by the outer walls of the vertical plates 2 and the inner wall of the box body 1; a plurality of placing screens 3 are arranged between the two vertical plates 2; through holes 22 are formed in the vertical plates 2 positioned on two sides below the bottommost placing sieve 3, and the through holes 22 are communicated with the air return cavity 21; a concentration cavity 23 is formed in the top of the box body 1, and two sides of the concentration cavity 23 are communicated with the air return cavity 21;

the air injection unit 4 comprises air injection components 41 with the number consistent with that of the placing screens 3, any air injection component 41 is positioned above the placing screens 3, a ventilation pipe 42 of the air injection component 41 penetrates through the air return cavity 21 to be connected with an air distribution pipe 5, and the middle part of the air distribution pipe 5 is connected with the air heater 6 through a connecting pipe 51;

the heat exchange box 7 is provided with an air inlet pipe 71 at the top and is fixed at the top of the box body 1; an air outlet at the bottom of the heat exchange box 7 is connected with an air inlet end of the air heater 6; a heat exchange tube 72 is arranged in the heat exchange box 7, the bottom end of the heat exchange tube 72 is connected with the air return tube 24, and the top end of the heat exchange tube passes through the heat exchange box 7; the return air pipe 24 is connected with the top of the concentration cavity 23 through an exhaust fan 8.

In the technical scheme, the placing screen 3 is used for placing the resin to be dried, and the placing screen 3 is used for placing the resin and is beneficial to hot air to flow through the placing screen 3; the arrangement that the air injection assemblies 41 are positioned above the placing screen 3 enables the sprayed hot air to be vertically blown to the resin placed on the placing screen 3, the drying speed is high, the number of the air injection assemblies 41 is consistent with that of the placing screen 3, so that the resin on each layer of the placing screen 3 is heated consistently, and the drying is more uniform and sufficient; under the action of the exhaust fan 8, hot and humid air generated by hot air drying of resin in the box body 1 enters the bottom of the air return cavity 21 through the through hole 22, so that the hot and humid air in the box body 1 is timely exhausted, the phenomenon that the drying quality of the resin is influenced due to the fact that the humid air gathers in the box body 1 for a long time is avoided, the temperature of the vertical plate 2 and the side wall of the box body 1 is increased while the hot and humid air entering the air return cavity flows upwards in the air return cavity 21, the heat preservation of the box body 1 is facilitated, the drying of the resin is accelerated, the drying efficiency is improved, and the primary utilization of the heat of the hot and humid air is realized; hot moisture is discharged into the heat exchange tube 72 through the concentration cavity 23, external fresh air enters the heat exchange box 7 to contact with the heat exchange tube 722 to absorb heat, the air which absorbs waste heat of the hot moisture has initial temperature, preheating of the fresh air is achieved, the time for the preheated air to reach the required temperature after entering the air heater 6 is shortened, energy consumption is reduced, and the purposes of energy conservation and environmental protection are achieved. Through the common cooperation of return air chamber 21 and heat transfer case 7, realize the twice utilization to the inside hot humid air heat of box 1, improved the utilization efficiency to the energy, when reducing the loss of heat energy, also promote the inside air cycle circulation of box 1, do benefit to and guarantee the stoving effect, and hot humid air discharge avoids the moisture to gather the oven-dry mass who influences the resin in box 1 for a long time effectively.

The working principle is as follows: placing resin to be dried on a placing screen 3, closing a box door 11, starting an air heater 6, allowing outside air to enter the air heater 6 through an air inlet pipe 71 and a heat exchange box 7, allowing hot air generated by the air heater 6 to pass through a connecting pipe 51, an air distribution pipe 5 and a ventilation pipe 42 in sequence and then be sprayed out through an air spraying assembly 41, allowing the sprayed hot air to blow towards the resin vertically so as to dry the resin, opening an exhaust fan 8 at the moment, generating negative pressure in a concentration cavity 23 and an air return cavity 21 under the action of the exhaust fan 8, so that hot moisture in the box body 1 is sucked into the air return cavity 21 through a through hole 22, allowing the hot moisture to flow into the concentration cavity 23 from bottom to top along the air return cavity 21, primarily utilizing heat of the hot moisture in the process, allowing the hot moisture to enter a heat exchange pipe 72 through the air return pipe 24, allowing the outside fresh air to enter the inside of the heat exchange box 7 through the air inlet pipe 71 to contact with the heat exchange pipe 72 for heat transfer, allowing the heat of the outside fresh air with the initial temperature after being preheated to flow out of the heat exchange box 7 and then enter the inside of the hot air heater 6 to heat exchange box body 1; the hot moisture in the heat exchange tube 72 is discharged out of the heat exchange tube 72, collected in a centralized manner, subjected to waste gas treatment and discharged.

In order to improve the drying uniformity, the air injection assembly 41 comprises an outer edge air pipe 411, an inner ring air pipe 412 and a plurality of branch pipes 413 arranged between the outer edge air pipe 411 and the inner ring air pipe 412 in a surrounding manner, wherein two ends of any branch pipe 413 are respectively communicated with the outer edge air pipe 411 and the inner ring air pipe 412; the bottom surfaces of the outer edge air pipe 411 and the inner annular air pipe 412 are both provided with air outlet holes 414, and the inner annular air pipe 412 is connected with the ventilation pipe 42 on the axis thereof through a connecting branch pipe 415. Outer fringe tuber pipe 411 is fixed in order to fix outer fringe tuber pipe 411 through connecting rod and riser 2 lateral wall, and hot-blast process connecting pipe 51, the air distribution pipe 5 that air heater 6 produced enter into ventilation pipe 42 in, then hot-blast entering outer fringe tuber pipe 411, the inside blowout through exhaust vent 414 at last of interior ring tuber pipe 412 have increased hot-blast blowout area, have further improved the resin homogeneity of being heated to the reinforcing is dried evenly.

A dehumidifying box 9 is installed on the pipeline of the air inlet pipe 71, a pair of filter screens 91 and an adsorption filler 92 filled between the filter screens 91 are installed in the dehumidifying box 9, the filter screens 91 filter and intercept impurities in air, and it is ensured that hot air entering the box body 1 is clean so as to avoid resin pollution; the adsorption filler 92 can be made of activated carbon, absorbent cotton and other materials, as long as moisture in the outside air can be absorbed, and the adsorption filler 92 absorbs moisture, so that the hot air blower 6 can heat the adsorption filler.

The utility model discloses in the in-service use in-process, getting of resin is put and is had inconveniently, for the ease of getting to put the resin, it includes screen cloth 31 and encloses to place sieve 3 and establishes screen cloth 31 bounding wall 32 all around, bounding wall 32 prevent that the resin from dropping from screen cloth 31, the both sides of bounding wall 32 are equipped with frame 33, be equipped with draw runner 331 on the frame 33 diapire be equipped with backup pad 10 on the riser 2 corresponds the position, be equipped with in the backup pad 10 with draw runner 331 sliding fit's slide rail 101, draw runner 331 slide to be installed on slide rail 101, the producer of being convenient for pushes in screen cloth 31, releases to do benefit to place the resin on screen cloth 31, will load the sieve 3 of placing that has the resin and push into inside the box, do benefit to the fixed sieve 3 of placing simultaneously.

Be equipped with a plurality of baffles 73 on the inner wall of both sides respectively in heat exchange case 7, baffle 73 will heat exchange case 7 is inside to be cut apart and to form the shape wind channel 74 of buckling, heat exchange tube 72 is the nature of buckling and follows the shape wind channel 74 of buckling arranges, and the setting in the nature of buckling wind channel 74 has prolonged the flow path and the flow time of external fresh air in heat exchange case 7, and heat exchange tube 72 is the nature of buckling simultaneously and follows the setting that the shape wind channel 74 of buckling arranged has prolonged the route and the time of hot moisture flow in heat exchange tube 72, has increased the area of contact of external air with heat exchange tube 72 effectively, does benefit to and improves heat exchange efficiency, improves the utilization efficiency to hot moisture heat.

Preferably, the air distribution pipe 5 and the connecting pipe 51 are respectively wrapped with a heat insulation layer (not shown), the heat insulation layers belong to the products in the prior art, and the heat insulation layers are favorable for heat insulation, so that the heat of hot air conveyed by the air distribution pipe 5 and the connecting pipe 51 is prevented from being greatly dissipated. Box 1 is equipped with the insulating layer (not shown) outward, and the insulating layer belongs to the prior art product, and the insulating layer does benefit to the heat preservation, reduces 1 inside heats of box and scatters and disappears, avoids simultaneously that the staff mistake touches the box and causes the scald because of high temperature, protection personnel safety.

While the embodiments of the invention have been described in detail in this specification and illustrated in the accompanying drawings, it is not intended to limit the invention to the exact construction and operation illustrated, and it is to be understood that all such modifications and variations that will be apparent to those skilled in the art may be made therein without departing from the spirit and scope of the invention.

Claims

1. A resin drying apparatus, comprising:

the refrigerator comprises a box body (1), wherein a box door (11) capable of opening and closing is arranged on one side wall of the box body; vertical plates (2) are symmetrically arranged on two sides in the box body (1), and air return cavities (21) are formed by the outer walls of the vertical plates (2) and the inner wall of the box body (1); a plurality of placing screens (3) are arranged between the two vertical plates (2); through holes (22) are formed in the vertical plates (2) on two sides below the bottommost placing sieve (3), and the through holes (22) are communicated with the air return cavity (21); a concentration cavity (23) is formed in the top of the box body (1), and two sides of the concentration cavity (23) are communicated with the air return cavity (21);

the air spraying unit (4) comprises air spraying assemblies (41) with the number being consistent with that of the placing screens (3), any air spraying assembly (41) is positioned above the placing screens (3), a ventilation pipe (42) of each air spraying assembly (41) penetrates through the air return cavity (21) to be connected with the air distribution pipe (5), and the middle part of the air distribution pipe (5) is connected with the air heater (6) through a connecting pipe (51);

the heat exchange box (7) is provided with an air inlet pipe (71) at the top and is fixed at the top of the box body (1); an air outlet at the bottom of the heat exchange box (7) is connected with an air inlet end of the air heater (6); a heat exchange pipe (72) is arranged in the heat exchange box (7), the bottom end of the heat exchange pipe (72) is connected with the air return pipe (24), and the top end of the heat exchange pipe penetrates out of the heat exchange box (7); the air return pipe (24) is connected with the top of the concentration cavity (23) through an exhaust fan (8).

2. The resin drying equipment according to claim 1, wherein the air injection assembly (41) comprises an outer edge air pipe (411), an inner annular air pipe (412) and a plurality of branch pipes (413) arranged between the outer edge air pipe (411) and the inner annular air pipe (412) in a surrounding manner, and two ends of any branch pipe (413) are respectively communicated with the outer edge air pipe (411) and the inner annular air pipe (412); the bottom surfaces of the outer edge air pipe (411) and the inner annular air pipe (412) are respectively provided with an air outlet (414), and the inner annular air pipe (412) is connected with the ventilation pipe (42) on the axis through a connecting branch pipe (415).

3. The resin drying equipment according to claim 1, wherein a dehumidifying box (9) is installed on the pipeline of the air inlet pipe (71), and a pair of filter screens (91) and an adsorption filler (92) filled between the filter screens (91) are installed in the dehumidifying box (9).

4. The resin drying equipment according to claim 1, wherein the placing sieve (3) comprises a screen (31) and enclosing plates (32) arranged around the screen (31), outer frames (33) are arranged on two sides of the enclosing plates (32), sliding strips (331) are arranged on the bottom walls of the outer frames (33), support plates (10) are arranged on corresponding positions of the vertical plates (2), and sliding rails (101) in sliding fit with the sliding strips (331) are arranged on the support plates (10).

5. The resin drying equipment according to claim 1, wherein a plurality of partition plates (73) are respectively arranged on the inner walls of two sides in the heat exchange box (7), the partition plates (73) divide the interior of the heat exchange box (7) into bent air channels (74), and the heat exchange tubes (72) are bent and arranged along the bent air channels (74).

6. The resin drying equipment according to claim 1, wherein the air distribution pipe (5) and the connecting pipe (51) are respectively wrapped with an insulating layer.

7. Resin drying equipment according to claim 1, characterized in that a thermal insulation layer is arranged outside the box body (1).