CN110425839A - Gypsum line heat reclaiming system - Google Patents

Abstract

The invention provides a heat energy recovery system for gypsum lines, which includes a plurality of partitioned drying boxes that are continuously arranged to dry the gypsum lines in sections. The heat energy recovery channel of the partitioned drying box is provided with a heat energy pumping device for pumping the drying airflow. The partitioned drying box is provided with a heat recovery channel connected from the rear end to the front end, and the heat pumping device continuously pumps the heat from the multiple partitioned drying boxes located in the rear part of the partitioned drying box to the front-end partitioned drying box, so that The front partition drying box is at a higher temperature after receiving the drying airflow in the rear partition drying box, and at the same time concentrates the moisture precipitated in the gypsum line to the front partition drying box, keeping the gypsum line in a high-temperature and high-humidity environment The cooking environment makes the molecular environment inside the gypsum line change, and the state of the powder particles of the gypsum line changes, which improves the product quality of the gypsum line.

Description

Gypsum Line Heat Recovery System

technical field

The invention relates to the technical field of building material equipment, and more specifically, to a heat recovery system for gypsum lines.

Background technique

Gypsum thread is a house decoration material, mainly used for interior decoration. The surface of gypsum thread can have various patterns, which is practical and beautiful for interior decoration. Effect.

After the gypsum thread is formed by gypsum injection molding, the gypsum thread needs to be dried, ventilated, and dried to remove moisture to obtain the finished gypsum thread. Since the plaster line is formed by injection molding, it requires a long drying time and takes up a lot of space. The gypsum line can be dried in a drying box. The drying quality of the drying box has an important impact on the quality of the gypsum line. During the drying process of the drying box, the drying quality is guaranteed by maintaining the high temperature of the drying box. Therefore, the drying box Making full use of heat and reducing heat loss are problems to be solved urgently by those skilled in the art.

Contents of the invention

In view of this, the present invention provides a gypsum line heat recovery system to fully utilize the heat of the drying box.

In order to achieve the above object, the present invention provides the following technical solutions:

A gypsum line heat energy recovery system, comprising a plurality of partitioned drying boxes that are continuously arranged to dry the gypsum line in sections, and the multiple partitioned drying boxes are provided with a The thermal energy recovery channel of the partitioned drying box is provided with a thermal energy pumping device for pumping the drying airflow.

Preferably, in the above-mentioned gypsum line heat energy recovery system, the heat energy recovery channel includes a plurality of the rear ends of the partitioned drying boxes sequentially connected to their front ends, connecting two adjacent partitioned drying boxes.

Preferably, in the above-mentioned gypsum line heat energy recovery system, the heat energy pumping device is a first ventilation fan arranged on the heat energy recovery channel.

Preferably, in the above-mentioned gypsum line heat energy recovery system, the inner wall of the partitioned drying box is arranged with a ventilation duct communicating with the inner drying space, and the top of the partitioned drying box is arranged with a ventilation duct connected with the ventilation duct. , and a heating chamber for heating the ventilation airflow in the ventilation air duct; a second ventilation fan for driving the ventilation air flow in the ventilation air duct is arranged in the heating chamber.

Preferably, in the above-mentioned gypsum line heat energy recovery system, the first side wall of the partitioned drying box is provided with a channel air outlet plate that communicates with the air outlet channel of the ventilation duct, and the partitioned drying box The second side wall of the second side wall is provided with a channel return air plate that communicates with the return air duct of the ventilation duct; on the channel air outlet plate, a plurality of channel air outlets that communicate with the drying space are evenly distributed, and the A plurality of channel return air ports communicating with the drying space are evenly distributed on the channel return air plate.

Preferably, in the above-mentioned gypsum line heat energy recovery system, the channel air outlet includes a plurality of air outlet slits arranged at intervals along the height direction of the channel air outlet plate and protruding laterally, and the channel air return port is multiple A channel return air hole evenly distributed on the channel return air plate.

Preferably, in the above-mentioned gypsum line heat energy recovery system, the ventilation air flow directions of the ventilation air ducts of any two adjacent partitioned drying boxes are arranged in opposite directions.

Preferably, in the gypsum line heat energy recovery system described above, the channel inlet of the heat energy recovery channel is connected to the return air channel.

Preferably, in the above-mentioned gypsum line heat energy recovery system, the plurality of partitioned drying boxes include consecutively arranged first zone drying boxes, second zone drying boxes, third zone drying boxes, and fourth zone drying boxes. box, the drying box in the fifth zone and the drying box in the sixth zone; the heat recovery channel includes three heat recovery channels arranged between the drying box in the second zone and the drying box in the fifth zone.

Preferably, in the above-mentioned gypsum line heat energy recovery system, the drying box in the first zone is a normal temperature drying box, and the return air duct of the first ventilation channel of the drying box in the first zone is connected to the first The drying box in the second zone; the top of the drying box in the sixth zone is provided with a heat exchange device for heat exchange with the heat in it, and the heat exchange device includes a heat exchanger and an exhaust gas that is heat exchanged with the heat exchanger water heater.

The gypsum line heat energy recovery system provided by the present invention includes a plurality of partitioned drying boxes that are continuously arranged to dry the gypsum line in sections. The heat energy recovery channel of the dry box is provided with a heat energy pumping device for pumping the drying airflow. When the gypsum line is drying, it is dried in sections in multiple partitioned drying boxes arranged continuously. A heat recovery channel connected from the rear end to the front end is set on the partitioned drying box, and the gypsum line enters the partitioned drying box. After the inside, the heat pumping device continuously pumps the heat from the multiple partitioned drying boxes located in the rear part of the partitioned drying box to the front partitioned drying box, so that the front partitioned drying box receives the rear partitioned drying box At the same time, the moisture precipitated in the gypsum line is concentrated in the front-end partition drying box, and the gypsum line is placed in a high-temperature and high-humidity cooking environment, so that the molecular environment inside the gypsum line changes, and the gypsum line The state of the wire powder changes, which improves the product quality of the gypsum wire.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is the schematic diagram of the cross-sectional structure of the partition drying box in the gypsum line heat energy recovery system provided by the present invention;

Fig. 2 is a partial enlarged view of place A in Fig. 1;

Fig. 3 is a cross-sectional view of the internal structure of the drying box in the first zone in the gypsum line heat energy recovery system provided by the present invention;

Fig. 4 is a cross-sectional view of the internal structure of the drying box in the second zone in the gypsum line heat recovery system provided by the present invention;

Fig. 5 is a cross-sectional view of the internal structure of the drying box in the third zone in the gypsum line heat energy recovery system provided by the present invention;

Fig. 6 is a cross-sectional view of the internal structure of the drying box in the fourth zone of the gypsum line heat energy recovery system provided by the present invention;

Fig. 7 is a cross-sectional view of the internal structure of the fifth zone drying box in the gypsum line heat energy recovery system provided by the present invention;

Fig. 8 is a cross-sectional view of the internal structure of the drying box in the sixth zone of the gypsum line heat energy recovery system provided by the present invention.

Detailed ways

The invention discloses a gypsum line heat energy recovery system, which realizes the full utilization of the heat of a drying box.

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

As shown in Figures 1-8, Figure 1 is a cross-sectional structural schematic diagram of a partitioned drying box in a gypsum line heat recovery system provided by the present invention; Figure 2 is a partial enlarged view of A in Figure 1; Figure 3 is a schematic diagram of the present invention The sectional view of the internal structure of the drying box in the first zone in the provided gypsum line heat recovery system; Figure 4 is the sectional view of the internal structure of the drying box in the second zone in the gypsum line heat recovery system provided by the present invention; Sectional view of the internal structure of the drying box in the third area of the gypsum line heat recovery system; Figure 6 is a cross-sectional view of the internal structure of the drying box in the fourth area of the gypsum line heat recovery system provided by the present invention; Figure 7 is a sectional view of the gypsum line provided by the present invention Sectional view of the internal structure of the drying box in the fifth zone of the heat energy recovery system; Figure 8 is a sectional view of the internal structure of the drying box in the sixth zone of the gypsum line heat recovery system provided by the present invention.

This embodiment provides a heat recovery system for gypsum lines, including a plurality of partitioned drying boxes 1 that are continuously arranged to dry the gypsum lines in sections, and multiple partitioned drying boxes 1 are provided with a rear-end partitioned drying box. It is connected to the heat energy recovery channel 301 of the front partition drying box, and the heat energy recovery channel 301 is provided with a heat energy pumping device 302 for pumping the drying airflow. When the gypsum line is drying, it is dried in sections in a plurality of partitioned drying boxes 1 arranged continuously. A heat recovery channel 301 connected from the rear end to the front end is set on the partitioned drying box 1, and the gypsum line enters the partition After the drying box 1 is inside, the heat energy pumping device 302 continuously pumps the heat in the multiple partition drying boxes 1 located in the rear part of the partition drying box 1 to the front partition drying box 1, so that the front partition drying box 1 After receiving the drying airflow in the back-end partition drying box 1, it is at a higher temperature, and at the same time, the moisture precipitated from the gypsum line is concentrated in the front-end partition drying box, and the gypsum line is placed in a high-temperature and high-humidity cooking environment, so that The molecular environment inside the gypsum thread changes, and the powder state of the gypsum thread changes, from β powder to α powder. The gypsum thread has higher density and strength, which improves the product quality of the gypsum thread

In a specific embodiment of the present case, the heat energy recovery channel 301 includes multiple partitioned drying boxes 1 sequentially connected from the rear end to the front end thereof, connecting two adjacent partitioned drying boxes 1 . The heat energy recovery channel 301 adopts the form of continuous arrangement, and the heat energy recovery channel 301 is installed between two adjacent partition drying boxes 1. When the heat energy is recovered to the front partition drying box 1, the partition drying at the rear end The partition drying cabinet 1 at the front end of the box 1 carries out the pumping and backflow of the drying air step by step, so that the temperature of the partition drying cabinet 1 arranged continuously increases gradually from the rear end to the front end, and the air flow containing moisture in the partition drying cabinet 1 at the rear end Continuous pumping to the front-end partition drying box 1, so as to ensure that the gypsum line enters a high-temperature and high-humidity cooking environment after entering the drying box, which is beneficial to the change of powder quality in the gypsum line and further ensures the quality stability of the gypsum line.

Specifically, the thermal energy pumping device 302 is a first ventilation fan arranged on the thermal energy recovery channel 301 .

In a specific embodiment of this case, the inner wall of the partition drying box 1 is arranged with a ventilation duct 2 communicating with the inner drying space, and the top of the partition drying box 1 is arranged with a communication ventilation duct 2, and the ventilation duct 2 is arranged on the inner wall of the partition drying box 1. A heating chamber 101 for heating the ventilation airflow in the passage 2; a second ventilation fan 103 for driving the ventilation airflow in the ventilation passage 2 is arranged in the heating chamber 101 . After the gypsum line is installed on three gypsum racks, it is sent into the drying box for drying. Because there are many gypsum lines on the gypsum rack 3 and the gaps between the gypsum lines are small, the steam in the drying process is easy to gather in the middle of the gypsum rack 3, so that the drying degree of the inner and outer gypsum lines on it is different.

By setting a ventilation duct 2 on the partition drying box 1, the ventilation duct 2 is connected to the drying space of the partition drying box 1, and a heating chamber 101 is arranged on the partition drying box, and the heating chamber 101 is connected with the ventilation duct 2. Connected, the second ventilation fan 104 is set in the ventilation duct 2 to pump the ventilation airflow in the ventilation duct 2, thereby forming a circulating blowing airflow in the drying space of the partition drying box 1, and the ventilation airflow is formed by After blowing out from the ventilation duct 2, it enters the drying space of the partitioned drying box 1. The ventilation air passes between the gypsum lines, and the air between the gypsum lines is pumped back to the heating chamber 101, and a combustion chamber is arranged in the heating chamber 101. 102, after the combustion chamber 102 heats the ventilation airflow circulating in the heating chamber 101, it is circulated and sent between the gypsum lines, so that the airflow in the partition drying box 1 forms a circulation heated and blown ventilation airflow, ensuring that the gypsum The consistency of temperature and humidity between the inner and outer gypsum lines of frame 3 ensures the quality stability of the gypsum lines.

In a specific embodiment of the case, the first side wall of the partition drying box 1 is provided with a channel air outlet plate 23 connected to the air outlet duct 21 of the ventilation duct 2, and the second side wall of the partition drying box 1 A channel return air plate 24 connected to the return air duct 22 of the ventilation duct 2 is arranged on the top; a plurality of channel air outlets 231 connected to the drying space are evenly distributed on the channel air outlet plate 23, and a plurality of channel air outlets 231 connected to the drying space are evenly distributed on the channel return air plate 24. Multiple channel return air outlets connected to the drying space. The continuous heating of the airflow in the partitioned drying box 1 easily leads to higher temperature and humidity at the top of the drying space, which affects the inconsistent drying conditions of the upper and lower parts of the gypsum line.

The air exchange duct 2 is pumped by the top air duct 20 to the air exchange air from the return air duct 22 and heated by the heating chamber 101, and then sent back to the drying space of the partition drying box 1 by the outlet air duct 21, and the partition drying The first side wall and the second side wall of the dry box 1 are respectively provided with a channel air outlet plate 23 and a channel air return plate 24, the channel air outlet plate 23 is provided with a channel air outlet, and the channel air return plate 23 is provided with a channel air return port, The channel air outlets are evenly distributed on the channel air outlet plate 23, so that a uniform ventilation airflow can be blown in the direction of the height of the gypsum line, corresponding to the channel air return ports evenly arranged on the channel return air plate 24, so that the drying of the partition drying box 1 The dry space forms a uniform blowing airflow in the height direction to ensure that the high-temperature and high-humidity airflow is evenly distributed in the height direction of the gypsum line to ensure the consistency of the drying quality of the gypsum line.

In a specific embodiment of this case, the channel air outlet includes a plurality of air outlet slits 231 arranged at intervals along the height direction of the channel air outlet plate and extending laterally, and the channel air return port is a plurality of air return ports evenly distributed on the channel return air plate 24 The upper channel return air hole. The channel air outlet is provided with air outlet slits 231 protruding along the width direction of the channel air outlet plate. The air outlet slits 231 include multiple air outlet slits and are arranged at intervals in the height direction of the channel air outlet plate 23 . The channel return air outlet is set as a channel return air hole structure, and the channel return air holes are evenly distributed on the plate surface of the channel return air plate 24, and the channel air outlet is evenly distributed along the height direction of the partition drying box 1, and the channel return air plate 24 The channel return air holes on the top are evenly distributed on the board surface, the airflow in the inner space of the partition drying box 1 can pump the airflow in the height direction, maintain the horizontal flow airflow inside the partition drying box, and realize the uniformity of the airflow inside the gypsum line flow. Preferably, an air deflector 232 for adjusting the width of the air outlet slit 231 is provided on the inner side of the air outlet slit 231 to adjust the airflow intensity of the air outlet slit 231 and adjust the airflow velocity on the surface of the gypsum line.

In a specific embodiment of the present case, the ventilation air flow directions of the ventilation air passages 2 of any two adjacent partitioned drying boxes 1 are arranged in opposite directions. Due to the high-temperature and high-humidity environment in the partitioned drying box 1, the ventilation duct 2 is used to circulate the air inside the partitioned drying box 1, which may easily cause the temperature and humidity of the gypsum frame 3 at the lateral ends of the partitioned drying box 1 to be inconsistent. , It is easy to cause inconsistent drying degrees of plaster lines on both sides of the plaster frame 3 in the width direction. Arrange the direction of the ventilation airflow of the ventilation duct 2 of any two adjacent partition drying boxes 1 in reverse, so that the ventilation airflow on both sides of the plaster frame 3 in its width direction is transferred to the adjacent partition for drying. After the box, the drying humidity and temperature environment of the gypsum line on both sides of the width direction of the gypsum frame 3 are kept consistent to further ensure the drying quality.

In a specific embodiment of the present case, the channel inlet of the heat recovery channel 301 is connected to the return air channel 22 . The heating chamber 101 is connected to the air exchange duct 2, and the air flow returned by the channel return air plate 24 flows into the return air duct 22, and after being heated in the heating chamber 101, it is sent to the air outlet duct 21, and the passage of the heat recovery channel 301 The inlet is connected to the return air duct 22, and the airflow pumped through the heat energy recovery channel 301 includes the heat energy not fully absorbed by the gypsum line in the partitioned drying box and the water vapor precipitated in the gypsum line.

In a specific embodiment of this case, the plurality of zone drying boxes 1 include a first zone drying box 1-1, a second zone drying box 1-2, a third zone drying box 1-3, a The four-zone drying box 1-4, the fifth zone drying box 1-5 and the sixth zone drying box 1-6; Three heat recovery channels between dry box 1-5.

Specifically, the drying box 1-1 in the first zone is a normal temperature drying box, and the return air duct of the first ventilation channel of the drying box 1-1 in the first zone is connected to the drying box 1-2 in the second zone; The top of the drying box 1-6 in the sixth zone is provided with a heat exchange device 106 for heat exchange with the internal heat. The heat exchange device 106 includes a heat exchanger 107 and an exhaust water heater 108 matched with the heat exchanger 107 for heat exchange.

The partition drying box 1 includes six consecutively arranged ones, the first one is a room temperature drying box, and the gypsum line is sent into the drying box after injection molding, and the drying box 1-1 in the first zone is dried and finalized at a low temperature to avoid other Analysis of internal water affects the surface quality of gypsum lines. The second district drying box 1-2, the third district drying box 1-3, the fourth district drying box 1-4 and the fifth district drying box 1-5 are provided with a heating chamber 101, and the adjacent two Heat energy recovery channels 301 are set between them, and heat energy pumping devices 302 are arranged on each heat energy recovery channel 301, so that the fourth drying boxes 1-4 and the fifth drying boxes 1-4 at the rear of multiple partition drying boxes 1 5. The internal heat and water vapor are ventilated and pumped to the drying box 1-2 in the second zone and the drying box 1-3 in the third zone, forming a high-temperature and high-humidity cooking environment in the two.

With the drying of the gypsum thread, the water vapor precipitated from the gypsum thread in the drying box 1 in the last part of the zone has gradually decreased, and the gypsum thread with improved powder quality can be obtained by drying the gypsum thread in the last sixth zone drying box 1-6. Gypsum line, the drying box 1-6 in the sixth area is mainly used for drying the gypsum line, so no heat recovery channel is set to return the drying air flow inside it, but there is still high heat in it, in order to reduce energy waste, a heat exchange system 106 is arranged on it, heat exchange is performed with heat exchanger 107 and the heat in the drying box 1-6 of the sixth zone, and the heat energy is used to heat the water stored in the exhaust water heater 108, and the exhaust gas water heater 108 stores The water is continuously heated, and the distilled water can be continuously obtained. Connecting it to the gypsum powder mixing box of the gypsum line can provide the mixing quality of the gypsum powder and further improve the product quality of the gypsum line.

The above description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. a kind of gypsum line heat reclaiming system, which is characterized in that carry out the more of segmentation drying to gypsum line including continuously arranging A subregion drying box is provided with the subregion drying box as described in rear end in multiple subregion drying boxes and is connected to subregion described in front end The thermal energy recovery approach of drying box is provided with the thermal energy pumped to drying air-flow on the thermal energy recovery approach and pumps dress It sets.

2. gypsum line heat reclaiming system according to claim 1, which is characterized in that the thermal energy recovery approach include by The rear end of multiple subregion drying boxes is linked in sequence to its front end, connects the multiple of two adjacent subregion drying boxes.

3. gypsum line heat reclaiming system according to claim 2, which is characterized in that the thermal energy pumping device is setting The first ventilating fan on the thermal energy recovery approach.

4. gypsum line heat reclaiming system according to claim 1, which is characterized in that the subregion drying chamber interior wall arrangement Having has the connection ventilation air duct with the ventilation air duct that drying space is connected in it, the top layout of the subregion drying box, and The heating room that ventilating air stream in the ventilation air duct is heated；The heating interior is provided with the driving ventilation air duct Second ventilating fan of interior ventilation airflow.

5. gypsum line heat reclaiming system according to claim 4, which is characterized in that the first side of the subregion drying box It is provided with the channel air outlet plate for being connected to the exhaust air flue in the ventilation air duct on wall, is set in the second sidewall of the subregion drying box It is equipped with the channel return air plate for being connected to the return airway in the ventilation air duct；Multiple connection institutes are uniformly distributed in the channel air outlet plate The channel air outlet in drying space is stated, the channel return air in multiple connections drying space is uniformly distributed on the channel return air plate Mouthful.

6. gypsum line heat reclaiming system according to claim 5, which is characterized in that the channel air outlet includes multiple Along the short transverse arranged for interval of the channel air outlet plate, and the air outlet slit crossed out, the channel return air inlet are multiple The channel return air hole being uniformly distributed on the channel return air plate.

7. gypsum line heat reclaiming system according to claim 6, which is characterized in that two subregions of arbitrary neighborhood The ventilation air-flow circulating direction reversed arrangement in the ventilation air duct of drying box.

8. gypsum line heat reclaiming system according to claim 7, which is characterized in that the channel of the thermal energy recovery approach Entrance is connected to the return airway.

9. gypsum line heat reclaiming system according to claim 8, which is characterized in that multiple subregion drying boxes include First area's drying box for continuously arranging, second area's drying box, third area drying box, the 4th area's drying box, the 5th area's drying box and 6th area's drying box；The thermal energy recovery approach includes being arranged in second area's drying box to three articles of heat between the 5th area's drying box It can recovery approach.

10. gypsum line heat reclaiming system according to claim 9, which is characterized in that firstth area drying box is normal The return airway of warm drying box, the first ventilation channel of firstth area drying box is connected to secondth area drying box；It is described The heat-exchange device that heat exchange is carried out with heat in it is provided at the top of 6th area's drying box, the heat-exchange device includes heat Exchanger and the tail gas water heater cooperated with heat exchanger heat exchange.