CN210862137U

CN210862137U - Movable three-temperature-zone dryer

Info

Publication number: CN210862137U
Application number: CN201921575218.4U
Authority: CN
Inventors: 郭伟民
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-21
Filing date: 2019-09-21
Publication date: 2020-06-26
Anticipated expiration: 2029-09-21

Abstract

The utility model belongs to the technical field of drying-machine, a three temperature zones of portable drying-machine is disclosed, including drying-machine case, boiler and heat exchanger, wherein it advances the pipe to be connected with the high temperature flue gas between drying-machine case and the boiler, it is connected with steam return pipe and high temperature flue gas return pipe to advance between the end of drying-machine case and heat exchanger, it changes the trachea to be connected with the heat between the play end of drying-machine case and heat exchanger, at least welding has a temperature control inner box in the drying-machine case, every temperature control inner box all forms a temperature control region, and the temperature control inner box includes that the top has seted up the box and the drive component of bleeder vent, the top and the bottom of box are equipped with inlet pipe and discharging pipe respectively, and the inside of box installs spiral pay; based on above-mentioned accuse temperature inner box for the warm area in the drying-machine is independent each other, thereby reduces the temperature interference between the adjacent warm area, makes the control by temperature change among the drying process more accurate.

Description

Movable three-temperature-zone dryer

Technical Field

The utility model belongs to the technical field of the drying-machine, concretely relates to three portable warm area drying-machines.

Background

In a patent of utility model CN206504583U, a mobile three-temperature-zone dryer is disclosed, which forms three zones of high temperature, medium temperature and low temperature based on valve control to meet the drying requirement of the material, and realizes the heat recovery of the moisture-discharging gas and the tail gas based on heat exchange; however, when the heat energy recovery heat exchanger is performed, the exhaust moisture is mixed with the exhaust gas, the exhaust moisture contains a large amount of moisture, the exhaust gas contains a part of dry smoke particles, and when the moisture is mixed with the dry smoke particles, the moisture of the smoke particles is increased, so that the smoke particles are easily attached to the inner wall of the recovery heat exchanger, the heat exchange efficiency is affected, and the service life of the recovery heat exchanger is shortened.

In addition, when the temperature control of the three temperature zones is performed, because the internal space of the whole dryer is conducted, the temperatures between the temperature zones can interfere with each other, and the zone detection cannot be accurately performed, only the heating temperature of the heating pipe can be controlled and adjusted, and in the actual drying process, along with the movement and the drying of the materials, the steam evaporated from the materials below can be in contact with the materials above, so that the materials above are further heated, and in addition, the internal space of the dryer can be further heated by matching with a waste heat recovery device, so that the actual temperatures of the three temperature zones are higher than the temperature control temperature in the temperature control process, the accurate temperature control cannot be realized, and the problem that the materials are excessively dried and are burnt still exists.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a three portable warm area drying-machines to solve the problem that proposes in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: a movable three-temperature-zone dryer comprises a drying case, a boiler and a heat exchanger, wherein a high-temperature flue gas inlet pipe is connected between the drying case and the boiler, a steam return pipe and a high-temperature flue gas return pipe are connected between the drying case and the inlet end of the heat exchanger, a heat exchange gas pipe is connected between the drying case and the outlet end of the heat exchanger, a temperature control inner box is welded in the drying case, each temperature control inner box forms a temperature control area, and the temperature control inner box comprises a box body and a driving member, the top of the box body is provided with air holes;

the top end and the bottom end of the box body are respectively provided with a feeding pipe and a discharging pipe so as to realize the connection between the adjacent temperature control inner boxes, a spiral feeding rod and a heat conducting plate are arranged in the box body, the heat conducting plate is positioned below the spiral feeding rod, a heating pipe is fixed at the bottom of the heat conducting plate, and the inlet end and the outlet end of the heating pipe are respectively connected with a high-temperature flue gas inlet pipe and a high-temperature flue gas return pipe;

the driving component is fixed on the outer wall of one side of the drying cabinet and mainly comprises a driving motor, and the driving motor drives the spiral feeding rod through a rotating shaft.

Preferably, one screw feeding rod is arranged and fixed in the box body in the same screw direction; the driving component further comprises a gear box, and the driving motor synchronously drives the plurality of spiral feeding rods through the gear box.

Preferably, the bottom of the box body is provided with a plurality of vent holes, the box wall of the box body is internally provided with an air guide clamping cavity with a U-shaped structure, and the vent holes are communicated with the bottom of the air guide clamping cavity.

Preferably, the heat exchanger comprises a shell with an air inlet pipe and a heat exchange pipe at two ends, a sealing plate is welded inside the shell, the shell is divided into two sub-cavities through the sealing plate, and the two sub-cavities are both provided with an air inlet end and an air outlet end; two divide the intracavity all to be equipped with and divide the pipe, two the inlet end of branch pipe is connected with the intake-tube on the casing, and the play end is connected with the heat exchange pipe on the casing, and divide and all be connected with the three-way valve between pipe and intake-tube and the heat exchange pipe.

Preferably, the heat exchanger further comprises a base, the heat exchanger is embedded in the base, and the bottom end of the base is provided with a roller.

Compared with the prior art, the utility model, following beneficial effect has:

(1) the utility model discloses the temperature control inner box has been set up for three temperature region mutual independence in the drying-machine, thereby reduce the temperature interference between the adjacent warm area, make the control by temperature change among the drying process more accurate, in addition, carry out material transfer based on the screw feeding rod in the temperature control inner box, can also carry out the material upset meanwhile, make the material drying in-process be heated more evenly.

(2) The top and the bottom of above-mentioned accuse temperature inner box all are equipped with the air vent to in realizing the emission of stoving in-process steam, be equipped with air guide clamp chamber in the tank wall of accuse temperature inner box simultaneously, make the steam discharge in-process form the contact with the tank wall of accuse temperature inner box, thereby further rise the temperature of accuse temperature inner box, have certain energy-conserving effect when the control by temperature change.

(3) The utility model discloses set up the heat exchanger of cellular-type, utilized the closing plate to form two spaces with the inside partition of heat exchanger to realize retrieving switching on respectively of steam and tail gas, cooperate the three-way valve to realize the reposition of redundant personnel of leading the air simultaneously again, make the leading air divide into two the tunnel, and produce the heat exchange with steam and tail gas respectively, when guaranteeing effectively to retrieve the waste heat, avoid appearing the phenomenon that dry smoke and dust granule mixes in steam moisture and the tail gas.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view taken at A in FIG. 1;

FIG. 3 is a schematic structural view of the temperature-controlled inner box of the present invention;

FIG. 4 is a schematic structural diagram of a heat exchanger according to the present invention;

in the figure: 1-drying machine box, 2-temperature control inner box, 21-box body, 22-spiral feeding rod, 23-air guide clamping cavity, 24-discharging pipe, 25-heat conducting plate, 26-heating pipe, 27-gear box, 28-driving motor, 29-feeding pipe, 3-base, 4-steam return pipe, 5-boiler, 6-high temperature flue gas inlet pipe, 7-heat exchanger, 71-shell, 72-branch pipe, 73-sealing plate, 74-branch cavity, 75-three-way valve and 8-high temperature flue gas return pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

For solving the problem of the accurate control by temperature change of unable subregion, the utility model discloses an this embodiment:

referring to fig. 1-3, the present invention provides the following technical solutions: a movable three-temperature-zone dryer comprises a drying case 1, a boiler 5 and a heat exchanger 7, wherein a high-temperature flue gas inlet pipe 6 is connected between the drying case 1 and the boiler 5, a steam return pipe 4 and a high-temperature flue gas return pipe 8 are connected between the drying case 1 and the inlet end of the heat exchanger 7, a heat exchange pipe is connected between the drying case 1 and the outlet end of the heat exchanger 7, a temperature control inner case 2 is welded in the drying case 1, each temperature control inner case 2 forms a temperature control area, and each temperature control inner case 2 comprises a case body 21 and a driving member, the top of each case body is provided with a vent hole;

the top end and the bottom end of the box body 21 are respectively provided with a feeding pipe 29 and a discharging pipe 24 so as to realize the connection between the adjacent temperature control inner boxes 2, the inside of the box body 21 is provided with a spiral feeding rod 22 and a heat conducting plate 25, wherein the heat conducting plate 25 is positioned below the spiral feeding rod 22, the bottom of the heat conducting plate 25 is fixed with a heating pipe 26, and the inlet end and the outlet end of the heating pipe 26 are respectively connected with the high-temperature flue gas inlet pipe 6 and the high-temperature flue gas return pipe 8;

the driving member is fixed on the outer wall of one side of the drying cabinet 1, and the driving member mainly includes a driving motor 28, and the driving motor 28 drives the screw feeding rod 22 through a rotating shaft.

Referring to fig. 1, in this embodiment, three (a/b/c) temperature control inner boxes 2 are set to form three temperature control regions including a high temperature (a), a medium temperature (b), and a low temperature (c), and a specific temperature control manner is implemented by a temperature sensor and a PCL programming controller, where the temperature sensor is installed inside the temperature control inner box 2 to ensure accuracy of temperature control.

In this embodiment, preferably, there is one screw feeding rod 22, and the screw feeding rods are fixed inside the box 21 in the same screw direction; the drive means further comprises a gear box 27, and a drive motor 28 drives the plurality of screw feed rods 22 synchronously via the gear box 27.

In this embodiment, preferably, the bottom of the box body 21 is provided with a plurality of vent holes, the wall of the box body 21 is provided with an air guide clamping cavity 23 having a U-shaped structure, and the vent holes are communicated with the bottom of the air guide clamping cavity 23.

In this embodiment, when the drying is performed according to the above structure, the material enters through the feeding pipe 29 of the temperature control inner box 2a, and is driven by the corresponding driving member, so that the material entering the temperature control inner box 2a moves from the feeding pipe 29 to the discharging pipe 24, and at the same time, high temperature flue gas is generated in the boiler 5 and enters the heating pipe 26 through the high temperature flue gas inlet pipe 6, specifically, referring to CN206504583U, a corresponding valve may be arranged at the connection between the high temperature flue gas inlet pipe 6 and the heating pipe 26, so as to realize temperature distribution of a/b/c temperature zone during heating, and the temperature of the heat conduction plate 25 is raised after the high temperature flue gas enters the heating pipe 26, so as to heat and dry the material on the heat conduction plate 25;

in the process, the moving speed of the material can be changed by adjusting the driving speed of the driving motor 28, and meanwhile, the material is fed and overturned by the spiral feeding rod 22, so that the uniformity of the heated material can be effectively ensured;

and the steam that produces during the stoving then upwards circulates, if the top has accuse temperature inner box 2, then in this accuse temperature inner box 2 is got into through the air vent, take a/b as the example: the whole generated in the temperature control inner box 2b enters the air guide clamping cavity 23 through the air vent at the bottom of the temperature control inner box 2a, and then is discharged to the upper part of the temperature control inner box 2a through the air guide clamping cavity 23, and steam is contacted with the box body 21 of the temperature control inner box 2a in the process, so that the temperature of the temperature control inner box 2a is further raised, and the energy consumption generated when the temperature control inner box 2a reaches the preset temperature is saved.

Example 2

For solving the problem that the humidity is apt to appear after dry smoke and dust granule and the steam moisture mix, the utility model discloses a this embodiment:

referring to fig. 2 and 4 in combination with embodiment 1, in this embodiment, preferably, the heat exchanger 7 includes a housing 71 having an air inlet pipe and a heat exchange pipe at two ends, a sealing plate 73 is welded inside the housing 71, the interior of the housing 71 is partitioned by the sealing plate 73 to form two sub-chambers 74, and each of the two sub-chambers 74 has an air inlet end and an air outlet end;

the branch pipes 72 are arranged in the two branch cavities 74, the inlet ends of the two branch pipes 72 are connected with the air inlet pipe on the shell 71, the outlet ends of the two branch pipes 72 are connected with the heat exchange pipe on the shell 71, and three-way valves 75 are connected between the branch pipes 72 and the air inlet pipe and between the branch pipes 72 and the heat exchange pipe.

In this embodiment, preferably, the dryer further comprises a base 3, the heat exchanger 7 is embedded in the base, and the bottom end of the base 3 is provided with a roller, so that the whole dryer can be guaranteed to be effectively moved.

In the present embodiment, when drying is performed according to the above-mentioned structure, the steam generated by drying flows back through the steam return pipe 4, passes through the boiler 5 and is guided into one sub-chamber 74 of the heat exchanger 7; the flue gas generated by drying flows back through the high-temperature flue gas return pipe 8 and flows into another sub-cavity 74 of the heat exchanger 7; meanwhile, air is introduced into an air inlet pipe at one end of the shell 71, two paths are formed through a three-way valve 75 respectively and are guided into the two branch pipes 72, the two branch pipes 72 respectively generate heat exchange in the two branch cavities 74, steam and smoke are discharged through air outlet ends corresponding to the branch cavities 74 after the heat exchange, high-temperature air obtained through the heat exchange in the two branch pipes 72 is mixed into a heat exchange pipe through the three-way valve 75 and is guided into the drying machine case 1 again, and the heating principle of the high-temperature air is the same as that of the steam.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a three warm area drying-machines of portable, includes drying cabinet (1), boiler (5) and heat exchanger (7), wherein it advances pipe (6) to be connected with the high temperature flue gas between drying cabinet (1) and boiler (5), it is connected with steam return pipe (4) and high temperature flue gas return pipe (8) to advance between the end of drying cabinet (1) and heat exchanger (7), be connected with heat exchanging pipe, its characterized in that between the play end of drying cabinet (1) and heat exchanger (7): the drying machine is characterized in that a temperature control inner box (2) is welded in the drying machine case (1), each temperature control inner box (2) forms a temperature control area, and each temperature control inner box (2) comprises a box body (21) and a driving component, wherein the top of the box body is provided with an air hole;

the top end and the bottom end of the box body (21) are respectively provided with a feeding pipe (29) and a discharging pipe (24) so as to realize the connection between the adjacent temperature control inner boxes (2), a spiral feeding rod (22) and a heat conducting plate (25) are arranged inside the box body (21), the heat conducting plate (25) is positioned below the spiral feeding rod (22), the bottom of the heat conducting plate (25) is fixedly provided with a heating pipe (26), and the inlet end and the outlet end of the heating pipe (26) are respectively connected with a high-temperature flue gas inlet pipe (6) and a high-temperature flue gas return pipe (8);

the driving component is fixed on the outer wall of one side of the drying cabinet (1), and mainly comprises a driving motor (28), and the driving motor (28) drives the spiral feeding rod (22) through a rotating shaft.

2. The mobile three-temperature-zone dryer according to claim 1, wherein: at least one spiral feeding rod (22) is arranged and fixed in the box body (21) in the same spiral direction; the driving component further comprises a gear box (27), and the driving motor (28) synchronously drives the plurality of spiral feeding rods (22) through the gear box (27).

3. The mobile three-temperature-zone dryer according to claim 2, wherein: the bottom of the box body (21) is provided with a plurality of vent holes, the wall of the box body (21) is internally provided with an air guide clamping cavity (23) with a U-shaped structure, and the vent holes are communicated with the bottom of the air guide clamping cavity (23).

4. The mobile three-temperature-zone dryer according to claim 1, wherein: the heat exchanger (7) comprises a shell (71) with air inlet pipes and heat exchange pipes at two ends, a sealing plate (73) is welded inside the shell (71), the shell (71) is internally divided into two sub-cavities (74) through the sealing plate (73), and the two sub-cavities (74) are respectively provided with an air inlet end and an air outlet end;

divide all to be equipped with in chamber (74) and divide pipe (72), two the end of advancing of branch pipe (72) is connected with the intake pipe on casing (71), and the hot trachea of changing on output and casing (71) is connected, and divide and all be connected with three-way valve (75) between pipe (72) and intake pipe and the hot trachea of changing.

5. The mobile three-temperature-zone dryer according to claim 4, wherein: still include base (3), inside heat exchanger (7) embedding in the base, and the gyro wheel is installed to base (3) bottom.