CN113405334B

CN113405334B - Uniform heating equipment for tube bundle dryer

Info

Publication number: CN113405334B
Application number: CN202110755986.3A
Authority: CN
Inventors: 彭锋; 张文利
Original assignee: Jiangsu Grand Drying Concentrating Equipment Co ltd
Current assignee: Jiangsu Grand Drying Concentrating Equipment Co ltd
Priority date: 2021-07-05
Filing date: 2021-07-05
Publication date: 2022-11-08
Anticipated expiration: 2041-07-05
Also published as: CN113405334A

Abstract

The invention discloses uniform heating equipment for a tube bundle dryer, which comprises a drying shell and a drying cover hinged with the drying shell, wherein a rotor is arranged in the drying shell, the rotor comprises two hollow rotating shafts, one end, close to each other, of each hollow rotating shaft is fixedly connected with a left rotating disc and a right rotating disc respectively, steam cavities are arranged in the left rotating disc and the right rotating disc respectively, third steam holes communicated with the hollow rotating shafts are formed in the inner walls of the steam cavities, and a plurality of first steam holes are formed in the opposite sides of the left rotating disc and the right rotating disc in a corresponding annular array mode. According to the invention, the plurality of tube bundles are detachably connected between the left rotating disc and the right rotating disc, when the tube bundles are required to be replaced or the angle of the shoveling plate is changed, the left rotating disc and the right rotating disc are driven to move back and forth through the rotation of the bidirectional threaded rod, so that the tube bundles can be easily disassembled and assembled, and the problems that the whole rotor is required to be replaced when one tube bundle is damaged and the equipment cost is increased in the traditional technology are solved.

Description

Uniform heating equipment for tube bundle dryer

Technical Field

The invention relates to the technical field of tube bundle dryers, in particular to uniform heating equipment for a tube bundle dryer.

Background

The tube bundle dryer is most commonly a rotary tube-array dryer, and a rotor of the rotary tube-array dryer is composed of hollow shafts at two ends, a seal head and a plurality of tube bundles. The head and the tube bundle in the existing rotary tube array type dryer are connected in a fixed and non-detachable mode, and once one tube bundle is damaged, the whole rotor needs to be replaced, so that the problem of high replacement cost exists.

To this end, we propose a uniform heating device for a tube bundle dryer to solve the above problems.

Disclosure of Invention

The invention aims to provide a uniform heating device for a tube bundle dryer, which solves the problem that once one tube bundle is damaged, the whole rotor needs to be replaced, and the replacement cost is high.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides an even firing equipment for tube bank desiccator, includes dry shell and articulated dry lid with it, be equipped with the rotor in the dry shell, the rotor includes two cavity pivots, two the one end that the cavity pivot is close to each other is fixedly connected with left turn table and right turn table respectively, and all is equipped with the steam chamber in left turn table and the right turn table, the third steam hole with cavity pivot intercommunication is seted up to the inner wall in steam chamber, a plurality of first steam holes have been seted up to the corresponding annular array in one side that left turn table is relative with the right turn table, and the position corresponds but is located two of left turn table and right turn table respectively can dismantle between the first steam hole and be connected with the tube bank, the lateral surface fixedly connected with flight of tube bank, two the cavity pivot has all cup jointed the side outward and is square bearing frame, bearing frame and dry shell sealing sliding connection.

Preferably, when the drying cover is buckled on the drying shell, a drying cavity is formed between the drying cover and the drying shell, the inner diameter of the drying cavity decreases gradually from left to right, and a spiral material shifting plate is fixedly connected to the outer surface of the right rotating disc.

Preferably, two the one end outer wall that the cavity pivot was kept away from each other all is located outside the drying shell and rotates to cup joint the clutch plate, two the one end inner wall that the cavity pivot was kept away from each other rotates and is connected with the bellows, two the lower extreme symmetry fixedly connected with backup pads of drying shell, two horizontal fixedly connected with is dull and stereotyped between the backup pad, two the common rotation of backup pad is connected with the two-way threaded rod, and two backup pad symmetry screw threads cup joint on the two-way threaded rod.

Preferably, a worm wheel is coaxially and fixedly sleeved on the bidirectional threaded rod between the two supporting plates, a second motor is fixedly installed at the lower end of the flat plate, and the output end of the second motor penetrates through the flat plate and is fixedly connected with a worm meshed with the worm wheel.

Preferably, one side of the first steam hole close to the tube bundle is provided with a step groove, and the inner circumferential surface of the step groove is provided with a plurality of clamping grooves in an annular array.

Preferably, a medial surface that the left-hand rotary table is close to a plurality of first steam holes uses the blind shaft to seal and rotate the connection valve plate, the embedded third motor that is used for the drive blind shaft that is equipped with of left-hand rotary table, annular array has seted up a plurality of second steam holes on the valve plate, and the figure in second steam hole is the same with the figure in first steam hole, the outer wall fixedly connected with stopper of valve plate, the inner wall in steam chamber seted up with stopper sliding connection's spacing groove, the drying is covered and is installed the humidity transducer who is used for detecting dry intracavity material humidity, the surface of drying lid runs through and installs the feeding frame.

Preferably, be equipped with the electromagnetic heating circle between dry shell and the dry lid, the electromagnetic heating circle is including inlaying a plurality of lower heating circles of dress in dry shell and inlaying a plurality of upper heating circles of dress in dry lid, and upper heating circle is the same with the figure of lower heating circle, each the both ends electric connection of lower heating circle has electric socket, the both ends electric connection of upper heating circle has electric inserted bar, electric socket and electric inserted bar electric connection one by one, the both ends of electromagnetic heating circle are connected with the power through electromagnetic heater.

Preferably, the outer wall of one of the hollow rotating shafts is fixedly sleeved with a first gear, the side surface of the drying shell is fixedly provided with a first motor, the output end of the first motor is fixedly connected with a second gear meshed with the first gear, and the thickness of the first gear is larger than that of the second gear.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, the plurality of tube bundles are detachably connected between the left rotating disc and the right rotating disc, when the tube bundles are required to be replaced or the angle of the shoveling plate is changed, the left rotating disc and the right rotating disc are driven to move back and forth through the rotation of the bidirectional threaded rod, so that the tube bundles can be easily disassembled and assembled, and the problems that the whole rotor is required to be replaced when one tube bundle is damaged and the equipment cost is increased in the traditional technology are solved;

2. according to the invention, the humidity inside the drying cavity is monitored by the temperature sensor, the flow entering the tube bundle is adjusted according to the humidity, namely the communication area of the first steam hole and the second steam hole is adjusted, and in addition, the steam pressure is adjusted, so that the drying efficiency is accelerated;

3. according to the invention, through the electromagnetic heating ring and the electromagnetic heater, after the drying shell is buckled with the drying cover, the tube bundle can be subjected to heat preservation or reheating through electromagnetic heating, so that the action time of steam is prolonged.

Drawings

Fig. 1 is a schematic structural diagram of a drying cover of a uniform heating device for a tube bundle dryer in an open state, which is viewed from the front.

Fig. 2 is a partially enlarged structural view of fig. 1.

Fig. 3 is a schematic structural view of the drying cover of the uniform heating device for the tube bundle dryer shown in an open state from the back side.

Fig. 4 is a schematic structural diagram of a left rotary disc of a uniform heating device for a tube bundle dryer according to the present invention.

Fig. 5 is a structural cross-sectional view of the side surface of a left rotary disc of the uniform heating device for the tube bundle dryer, which is provided by the invention.

Fig. 6 is a structural sectional view of the rear side of the drying shell and the drying cover of the uniform heating device for the tube bundle dryer, which are connected according to the present invention.

In the figure: the device comprises a drying shell 1, a drying cover 2, a hollow rotating shaft 3, a bearing seat 4, a left rotating disc 5, a right rotating disc 6, a tube bundle 7, a shoveling plate 8, a spiral material shifting plate 9, a first steam hole 10, a step groove 11, a clamping groove 12, a humidity sensor 13, a valve plate 14, a second steam hole 15, a limiting block 16, a limiting groove 17, a corrugated tube 18, a first gear 19, a second gear 20, a first motor 21, a two-way threaded rod 22, a supporting plate 23, a flat plate 24, a second motor 25, a worm 26, a worm wheel 27, an electric inserted rod 28, an electric inserted slot 29, an upper heating ring 30, a lower heating ring 31, a feeding frame 32 and a clutch plate 33.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-6, an even heating apparatus for tube bundle dryer, including dry shell 1 and articulated dry lid 2 with it, be equipped with the rotor in the dry shell 1, the rotor includes two cavity pivot 3, the one end that two cavity pivot 3 are close to each other is fixedly connected with left carousel 5 and right carousel 6 respectively, and all be equipped with the steam chamber in left carousel 5 and the right carousel 6, the third steam hole with cavity pivot 3 intercommunication is seted up to the inner wall in steam chamber, a plurality of first steam holes 10 have been seted up to the corresponding annular array of one side of left carousel 5 and right carousel 6, the position corresponds but can dismantle between two first steam holes 10 that lie in left carousel 5 and right carousel 6 respectively and is connected with tube bundle 7, because tube bundle 7 can dismantle, so in case one of them tube bundle 7 takes place to damage, can replace, need not to change whole rotor, save equipment cost, the lateral surface fixedly connected with shoveling plate 8 of tube bundle 7, all cup joint the bearing frame 4 that the side is square outside two cavity pivot 3, bearing frame 4 and dry shell 1 sealing sliding connection.

When the drying cover 2 is buckled on the drying shell 1, a drying cavity is formed between the drying cover 2 and the drying shell 1, the inner diameter of the drying cavity from left to right is gradually reduced, and the outer surface of the right rotating disc 6 is fixedly connected with a spiral material shifting plate 9. According to the invention, the materials entering the drying cavity can gradually slide from left to right in the rotation process of the rotor, and the spiral material stirring plate 9 continuously shovels the materials to left in the sliding process, so that most of the materials are positioned under the tube bundles 7, and the efficiency is improved. It should be noted that the right side of the drying shell 1 is also provided with a discharge pipe with a valve for discharging the dried material.

One side that first steam hole 10 is close to tube bank 7 has seted up stepped groove 11, a plurality of screens groove 12 have been seted up to the inner peripheral surface annular array of stepped groove 11, the one end outer wall of tube bank 7 is equipped with the screens piece with a plurality of screens groove 12 joints equally, the external diameter of tube bank 7 is less than the internal diameter of stepped groove 11, the internal diameter of tube bank 7 is greater than the internal diameter of first steam hole 10, guarantee that tube bank 7 can be contradicted by stepped groove 11, and avoid causing the influence to the flow of high temperature steam, sealed pad that guarantees to seal is closed on stepped groove 11, when tube bank 7 contradicts with stepped groove 11, can avoid high temperature steam to leak, the joint cooperation of screens groove 12 and screens piece, can avoid tube bank 7 to take place to deflect in the rotation process, maintain the position of shoveling plate 8 for tube bank 7, when dry material granule is different, can rotate tube bank 7 as required, make shoveling plate 8 different with the contained angle that the axis of pivot 3 formed, avoid the material card to take place between shoveling plate 8 and dry shell 1.

The outer wall of one hollow rotating shaft 3 is fixedly sleeved with a first gear 19, the side surface of the drying shell 1 is fixedly provided with a first motor 21, the output end of the first motor 21 is fixedly connected with a second gear 20 meshed with the first gear 19, and the first motor 21 transmits torque to one hollow rotating shaft 3 through the second gear 20 and the first gear 19 which are mutually meshed.

In the invention, high-temperature steam flows from left to right and sequentially passes through the hollow rotating shaft 3 positioned on the left side, the third steam hole, the steam cavity of the left rotating disc 5, each tube bundle 7, the steam cavity of the right rotating disc 6, the third steam hole and the hollow rotating shaft 3 positioned on the right side, in the process, the first motor 21 transmits torque to one hollow rotating shaft 3 through the second gear 20 and the first gear 19 which are meshed with each other, the tube bundles 7 and the shoveling plate 8 connected with the tube bundles are indirectly driven to rotate, the shoveling plate 8 shovels materials to be dried at the bottom in the drying shell 1 and contacts with the tube bundles 7 in the rotating process, and moisture in the materials is evaporated under the heat conduction effect, so that the aim of drying the materials is fulfilled.

The one end outer wall that two cavity pivot 3 kept away from each other all is located dry shell 1 and rotates and cup jointed clutch plate 33, the one end inner wall that two cavity pivot 3 kept away from each other rotates and is connected with bellows 18, bellows 18 is scalable, the clutch plate 33 that the removal took place to the adaptation, two backup pads 23 of the lower extreme symmetry fixedly connected with of dry shell 1, horizontal fixedly connected with is dull and stereotyped 24 between two backup pads 23, two backup pads 23 rotate jointly and are connected with two-way threaded rod 22, and two backup pad 23 symmetry screw threads cup joint on two-way threaded rod 22. A worm wheel 27 is coaxially and fixedly sleeved on the bidirectional threaded rod 22 positioned between the two support plates 23, a second motor 25 is fixedly installed at the lower end of the flat plate 24, the output end of the second motor 25 penetrates through the flat plate 24 and is fixedly connected with a worm 26 meshed with the worm wheel 27, and the second motor 25 transmits torque to the bidirectional threaded rod 22 through the worm 26 and the worm wheel 27 which are mutually meshed. And the thickness of the first gear 19 is larger than that of the second gear 20, the first gear 19 can still be ensured to be meshed with the second gear 20 during the moving process.

In the invention, once one of the tube bundles 7 is damaged or the position of each shoveling plate 8 relative to the inner wall of the drying shell 1 needs to be adjusted, the distance between the left rotating disk 5 and the right rotating disk 6 needs to be increased, specifically, as follows, the second motor 25 transmits torque to the bidirectional threaded rod 22 through the worm 26 and the worm wheel 27 which are meshed with each other, the rotation of the bidirectional threaded rod 22 is converted into the back-to-back movement of the two clutch plates 33, the distance between the left rotating disk 5 and the right rotating disk 6 is increased, so that the tube bundles 7 are separated, the two bearing seats 4 move back to back, but the first gear 19 is always meshed with the second gear 20 in the moving process, and the situation that teeth need to be aligned after the disassembly and assembly is finished is avoided.

In addition, as a modification, the depth of the stepped groove 11 in the left-hand tray 5 and the right-hand tray 6 may be designed to be different, and then the tube bundle 7 may be retained in the stepped groove 11 having a deeper depth at the time of detachment or installation, so as to be attached and detached.

A left side carousel 5 is close to a medial surface of a plurality of first steam holes 10 and uses blind shaft seal to rotate and connect valve plate 14, the embedded third motor that is used for driving the blind shaft that is equipped with of left side carousel 5, annular array has seted up a plurality of second steam holes 15 on the valve plate 14, and the figure of second steam hole 15 is the same with the figure of first steam hole 10, the outer wall fixedly connected with stopper 16 of valve plate 14, the spacing groove 17 with 16 sliding connection of stopper is seted up to the inner wall in steam chamber, at valve plate 14 pivoted in-process, stopper 16 slides in spacing groove 17, thereby restrict valve plate 14's turned angle, install the humidity transducer 13 that is used for detecting dry intracavity material humidity on the dry lid 2, the surface through mounting of dry lid 2 has feeding frame 32, be convenient for the outflow of feeding and steam.

In the invention, the humidity sensor 13 is responsible for monitoring the humidity in the drying cavity, when the humidity is higher, the flow entering each tube bundle 7 in unit time can be increased, the steam pressure at the other end can be increased, and the third motor can drive the valve plate 14 to rotate, so that the communication area between the second steam holes 15 and the first steam holes 10 at the corresponding positions is gradually increased, thereby accelerating the drying efficiency of the material.

Be equipped with the electromagnetic heating circle between dry shell 1 and the dry lid 2, the electromagnetic heating circle is including inlaying a plurality of lower heating circles 31 of inlaying in dry shell 1 and inlaying a plurality of upper heating circles 30 of inlaying in dry lid 2, and upper heating circles 30 is the same with lower heating circles 31's figure, each lower heating circles 31 both ends electric connection has electric socket 29, upper heating circles 30 both ends electric connection has electric inserted bar 28, electric socket 29 and electric inserted bar 28 electric connection one by one, the both ends of electromagnetic heating circle are connected with the power through electromagnetic heater, the preparation material of tube bank 7 contains the iron material.

In the invention, when the drying shell 1 and the drying cover 2 are in an open state, the upper heating ring 30 and the lower heating ring 31 which are in corresponding positions are in a disconnected state, when materials need to be dried, the drying shell 1 and the drying cover 2 which are in a buckled state, the electric plug grooves 29 and the electric plug rods 28 are in one-to-one corresponding electric plug-in connection, under the action of an external electromagnetic heater, a power supply is converted into high-frequency high-voltage current, the current can generate an alternating magnetic field which changes at a high speed when flowing through the coils, eddy current is generated in the tube bundle 7, the eddy current enables current carriers of the tube bundle 7 to move randomly at a high speed, the current carriers collide and rub with each other to generate heat energy, condensed water is heated to form water vapor, and the use efficiency of the steam is improved.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. Uniform heating device for tube bundle dryers, comprising a drying shell (1) and a drying cover (2) hinged thereto, characterized in that: the drying shell (1) is internally provided with a rotor, the rotor comprises two hollow rotating shafts (3), one ends of the two hollow rotating shafts (3) close to each other are fixedly connected with a left rotating disc (5) and a right rotating disc (6) respectively, steam cavities are arranged in the left rotating disc (5) and the right rotating disc (6), the inner wall of each steam cavity is provided with a third steam hole communicated with the hollow rotating shaft (3), one side of the left rotating disc (5) opposite to the right rotating disc (6) corresponds to the annular array and is provided with a plurality of first steam holes (10), positions of the left rotating disc (5) and the right rotating disc (6) correspond to each other and are respectively positioned between the two first steam holes (10) and are detachably connected with a tube bundle (7), the outer side surface of the tube bundle (7) is fixedly connected with shoveling plates (8), the two hollow rotating shafts (3) are respectively sleeved with a bearing seat (4) with a square side surface, the bearing seats (4) are in sealing sliding connection with the drying shell (1), one side of the first steam holes (10) close to the tube bundle (7) is provided with a clamping groove (11), one end of the hollow rotating shaft (11) sleeved with the annular array is provided with a plurality of clamping grooves (11), one end of the outer wall of the inner wall of the tube bundle (3) is provided with a plurality of the clamping blocks (12), and one end of the clamping grooves (33) far away from the drying shell (3), two the one end inner wall that cavity pivot (3) kept away from each other rotates and is connected with bellows (18), two backup pad (23) of the symmetrical fixedly connected with of lower extreme of dry shell (1), two horizontal fixedly connected with is dull and stereotyped (24), two between backup pad (23) rotate jointly and are connected with two-way threaded rod (22), and two backup pad (23) symmetry screw thread cup joints on two-way threaded rod (22), is located coaxial fixed cover on two-way threaded rod (22) between two backup pad (23) and has connect worm wheel (27), the lower extreme fixed mounting of dull and stereotyped (24) has second motor (25), the output of second motor (25) runs through worm (26) dull and stereotyped (24) and fixedly connected with and worm wheel (27) meshing.

2. A uniform heating apparatus for a tube bundle dryer according to claim 1, characterized in that: when dry lid (2) lock is on dry shell (1), form the dry chamber between dry lid (2) and dry shell (1), the dry chamber reduces from a left side to the internal diameter on the right side gradually, the outer fixed surface of right carousel (6) is connected with spiral switch plate (9).

3. A uniform heating apparatus for a tube bundle dryer according to claim 1, characterized in that: the utility model discloses a drying device, including left side rotary table (5), valve plate (14) is connected to the sealed rotation of blind shaft of medial surface that is close to a plurality of first steam holes (10) of left side rotary table (5), the embedded third motor that is used for driving the blind shaft that is equipped with in left side rotary table (5), annular array has seted up a plurality of second steam holes (15) on valve plate (14), and the figure of second steam hole (15) is the same with the figure of first steam hole (10), the outer wall fixedly connected with stopper (16) of valve plate (14), spacing groove (17) with stopper (16) sliding connection are seted up to the inner wall in steam chamber, install humidity transducer (13) that are used for detecting dry intracavity material humidity on dry lid (2), the surface of dry lid (2) runs through and installs feeding frame (32).

4. A uniform heating apparatus for a tube bundle dryer according to claim 1, characterized in that: be equipped with the electromagnetic heating circle between dry shell (1) and dry lid (2), the electromagnetic heating circle is including inlaying a plurality of lower heating circles (31) of inlaying in dry shell (1) and inlaying a plurality of heating circles (30) of going up of inlaying in dry lid (2), and goes up heating circle (30) and the figure of heating circle (31) is the same down, each the both ends electric connection of heating circle (31) has electric socket (29) down, the both ends electric connection of going up heating circle (30) has electric inserted bar (28), electric socket (29) and electric inserted bar (28) electric connection one by one, the both ends of electromagnetic heating circle are connected with the power through electromagnetic heater.

5. A uniform heating apparatus for a tube bundle dryer according to claim 1, characterized in that: one of them the fixed cover of outer wall of cavity pivot (3) has connect first gear (19), the side fixed mounting of dry shell (1) has first motor (21), the output fixedly connected with of first motor (21) and first gear (19) meshing second gear (20), and the thickness of first gear (19) is greater than the thickness of second gear (20).