Tail gas waste heat recovery device for calcium formate production

Abstract

The utility model discloses a tail gas waste heat recovery device for calcium formate production, which comprises a dust removal module used for removing dust from tail gas and comprising a machine body; the dust removal channel is arranged in the machine body, and the machine body is provided with an input pipe used for guiding tail gas into the dust removal channel and an output pipe used for discharging the tail gas out of the dust removal channel; the dust screen is fixedly arranged in the dust removal channel of the machine body; the heat pump module is used for carrying out dehumidification, heat exchange and temperature rise on the dedusted tail gas and outputting high-temperature tail gas, and the dedusting module is arranged, so that the tail gas output from the dryer can be dedusted through the dedusting module and then subjected to waste heat recovery, and the tail gas is recycled; the problems that dust enters the tail gas waste heat recovery device through tail gas, blockage is caused, the system efficiency is affected, equipment is damaged, and the heat exchange efficiency and the recycling quality of the tail gas are affected are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of calcium formate production, and particularly relates to a tail gas waste heat recovery device for calcium formate production. Background Technique

[0002] Calcium formate is an inorganic compound, usually in the form of a white crystal or powder. It is widely used in industrial production such as chemical industry, building materials, leather making, and petroleum. When calcium formate is used as a chemical raw material, it can be used as a catalyst for certain chemical reactions, thereby promoting the progress of the reaction and improving the reaction efficiency in some organic synthesis processes. It can also be used as an intermediate for manufacturing other chemicals, such as a raw material when preparing other calcium salts or organic compounds.

[0003] When preparing calcium formate, one method is to add lime milk into the reaction kettle. Under stirring conditions, formic acid is put into the reaction kettle, and the reaction is carried out under specified conditions. After the reaction is complete, the material is filtered through a filter to remove residues and then put into the crystallization kettle for standby. The mother liquor is put into the crystallization kettle for evaporation and concentration crystallization, and the crystals are continuously fished out and put into a rotary drum centrifuge for dewatering treatment. The dewatered wet material is sent to a dryer, and the dried material is pulverized, tested, metered, and packaged to obtain the finished product.

[0004] When the dryer dries the wet material, it will dry the wet material through steam. Therefore, during the drying process, the dryer will generate a large amount of tail gas, and there is a lot of waste heat in the tail gas. Therefore, a tail gas waste heat recovery device is needed to recycle the tail gas generated by the dryer.

[0005] Since some dust will be generated during the drying process of the wet material, if the dust enters the tail gas waste heat recovery device through the tail gas, it will cause the dust to block in the tail gas waste heat recovery device, resulting in blockage, affecting the system efficiency, and easily causing equipment damage, as well as affecting the heat exchange efficiency and the quality of tail gas recovery and utilization. Summary of the Invention

[0006] To solve the above technical problems, the utility model provides the following technical solutions. A tail gas waste heat recovery device for calcium formate production includes:

[0007] A dust removal module, which is used for removing dust from the tail gas. The dust removal module includes a body;

[0008] A dust removal channel. The body has a dust removal channel, and the body is provided with an input pipe for introducing the tail gas into the dust removal channel and an output pipe for discharging the tail gas from the dust removal channel;

[0009] A dust-proof net, which is fixedly arranged in the dust removal channel of the body;

[0010] An installation component, wherein the dust screen is connected to the machine body through the installation component;

[0011] A collecting component, wherein the machine body is provided with a collecting component for collecting dust;

[0012] The heat pump module is used to dehumidify the exhaust gas after dust removal, heat it up, and output high-temperature exhaust gas.

[0013] Furthermore, the installation component includes:

[0014] The installation frame is a frame body, and the dustproof net is located in the frame body of the installation frame and is fixedly connected to the inner circle of the installation frame;

[0015] A mounting groove, wherein the body is provided with a mounting groove for inserting the mounting frame from the outside, and the mounting groove is connected to the dust removal channel;

[0016] Wherein, after the installation frame is inserted into the machine body through the installation slot, the dustproof net is located in the dust removal channel, and the front side of the installation frame blocks the installation slot.

[0017] Furthermore, the dustproof nets are arranged in two groups at intervals on the left and right sides of the installation frame, and two installation slots are provided on the front side of the machine body.

[0018] Furthermore, it also includes:

[0019] The cover body is hollow, one end of the cover body is rotatably connected to the outer surface of the body, and the other end of the cover body is magnetically connected to the outer surface of the body;

[0020] Wherein, the cover body is arranged on two installation grooves.

[0021] Furthermore, the collection component includes:

[0022] A collection box having at least two receiving slots;

[0023] A through slot is provided through the machine body, and its contour matches the collection box;

[0024] The collecting box is slidably arranged in the through slot of the machine body, the lower end of the dust removal channel near the input pipe end is connected with the upper end of the through slot, and when one of the receiving slots of the collecting box is located in the through slot of the machine body and corresponds to the dust removal channel, the other receiving slot of the collecting box is exposed to the outside of the machine body;

[0025] Furthermore, it also includes:

[0026] A sealing cover, wherein an opening is provided at the lower end of the collecting box, the opening is connected to the receiving groove, and the sealing cover is spirally arranged in the opening to seal the opening;

[0027] Wherein, the lower surface of the cover is parallel to the lower surface of the collection box.

[0028] Furthermore, it further includes:

[0029] A handle, handles are fixedly arranged at the front and rear ends of the collection box, the front end of the installation frame, and the outside of the cover body, and the cover body covers the handle on the installation frame.

[0030] Furthermore, the air outlet of the input pipe is inclined downward and faces the upper part of the dust-proof net.

[0031] The beneficial effects of the present utility model are as follows:

[0032] 1. By providing a dust removal module, the tail gas output from the dryer can first pass through the dust removal module for dust removal and then for waste heat recovery, recycling the tail gas, and preventing dust from entering the waste heat recovery device of the tail gas through the tail gas, avoiding problems such as blockage, affecting system efficiency, causing equipment damage, affecting heat exchange efficiency, and the quality of tail gas recovery and utilization.

[0033] 2. By providing an installation frame and an installation groove, the dust-proof net is detachably connected to the machine body. After the dust-proof net accumulates dust after long-term use, the dust on the upper part of the dust-proof net can be cleaned by removing the installation frame, preventing the dust-proof net from being blocked. At the same time, if the dust-proof net is damaged, a new dust-proof net can also be replaced by disassembling the installation frame, making the overall use effect better.

[0034] 3. By providing two groups of dust-proof nets, the dust removal effect is better. At the same time, if one of the dust-proof nets needs to be cleaned, after one of the installation frames is removed, the tail gas can still pass through the other group of dust-proof nets for dust removal, making it more convenient to remove one of the installation frames to clean the dust-proof net while the machine body is working, and the dust removal effect will not be affected when cleaning the dust-proof net.

[0035] 4. By covering the installation groove part of the machine body with the cover body, it can protect the installation frame and the installation groove, preventing the installation groove from deforming due to impact, so that the installation frame cannot be inserted. At the same time, it can also prevent misoperation. The cover body is rotated and opened when the installation frame needs to be replaced, and it can also prevent powder from leaking from the installation frame and the installation groove.

[0036] 5. By providing a collection box and opening a receiving groove, the receiving groove can collect the dust in the dust removal channel, preventing dust from accumulating in the dust removal channel. At the same time, multiple receiving grooves are provided. By pulling the collection box to switch different receiving grooves to correspond to the dust removal channel, after the dust has accumulated in one receiving groove for a period of time, the collection box can be pulled to switch to another receiving groove that has not accumulated dust to correspond to the dust removal channel to collect dust, playing a role in quick switching. At the same time, when cleaning the dust in the receiving groove, it does not affect the dust collection.

[0037] 6. By providing an opening and a cover, it is convenient to open the cover to clean the dust in the receiving groove and remove the dust through the opening. A container can be placed below the opening to catch the dust, making the overall cleaning more labor-saving.

[0038] 7. Since the air outlet of the input pipe is inclined downward and faces the upper part of the dust-proof net, the entering direction of the tail gas can be guided through the air outlet of the input pipe, thereby blowing out an obliquely downward airflow. The tail gas introduced by the input pipe can wash the dust-proof net from top to bottom, washing the dust on the dust-proof net into the receiving groove, preventing dust from accumulating on the dust-proof net, making the overall use effect better and the service life longer. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] FIG Figure 1 is a schematic flow chart when the tail gas waste heat recovery device is working;

[0040] FIG Figure 2 is a structural diagram of the dust removal module;

[0041] FIG Figure 3 is a cross-sectional view of the dust removal module;

[0042] FIG Figure 4 is a cross-sectional structural diagram of the dust removal module;

[0043] FIG Figure 5 is a structural diagram when the cover is opened;

[0044] FIG Figure 6 is a structural diagram when the mounting frame is taken out of the mounting groove;

[0045] FIG Figure 7 is a structural diagram of the collection box;

[0046] FIG Figure 8 is a structural diagram when the cover is separated from the bottom of the collection box;

[0047] FIG Figure 9 is a bottom view structural diagram of the machine body;

[0048] Description of the reference numerals in the drawings: 1. Body, 2. Dust removal channel, 3. Input pipe, 4. Output pipe, 5. Dust-proof net, 6. Installation frame, 7. Installation groove, 8. Cover body, 9. Collection box, 10. Accommodation groove, 11. Through groove, 12. Sealing cover, 13. Opening, 14. Handle, 15. Dryer, 16. Evaporator, 17. High-temperature compressor, 18. Condenser, 19. Induced draft fan. Detailed implementation manners

[0049] The following will clearly describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application. In the description of the present application, it should be noted that the terms used herein are only for the purpose of describing specific implementation manners and are not intended to limit the exemplary embodiments of the present application. For the convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationship. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings. Embodiment 1

[0050] This embodiment provides a tail gas waste heat recovery device for calcium formate production, including:

[0051] A dust removal module, which is used for dust removal of the tail gas. The dust removal module includes a body 1;

[0052] A dust removal channel 2. There is a dust removal channel 2 in the body 1. The body 1 is provided with an input pipe 3 for introducing the tail gas into the dust removal channel 2 and an output pipe 4 for discharging the tail gas from the dust removal channel 2;

[0053] A dust-proof net 5, which is fixedly arranged in the dust removal channel 2 of the body 1;

[0054] An installation component, through which the dust-proof net 5 is connected to the body 1;

[0055] A collection component, which is arranged on the body 1 for collecting dust;

[0056] A heat pump module, which is used to dehumidify and heat-exchange and raise the temperature of the tail gas after dust removal, and output high-temperature tail gas. The heat-exchange working medium in the heat pump module can be carbon dioxide.

[0057] In this technical solution, the heat pump module includes an evaporator 16, a high-temperature compressor 17, and a condenser 18;

[0058] The evaporator 16 is used to heat-exchange and dehumidify the tail gas output by the dust removal module;

[0059] The high-temperature compressor 17 is used to compress and heat the heat-transfer working medium of the evaporator 16;

[0060] The condenser 18 is used to heat-exchange and raise the temperature of the tail gas dehumidified by the evaporator 16 through the heat-transfer working medium compressed and heated by the high-temperature compressor 17;

[0061] Among them, the body 1 of the dust removal module has an input pipe 3 and an output pipe 4, and a dryer 15 is also provided outside it (the evaporator 16, the high-temperature compressor 17, the condenser 18, and the dryer 15 are all prior arts and will not be elaborated here), which is used to dry the wet material of calcium formate and discharge the tail gas carrying dust at the same time. The dryer 15 has a steam inlet for introducing high-temperature steam, a tail gas output end, and a recovery input end. The tail gas output end of the dryer 15 is connected to the input pipe 3 of the body 1 of the dust removal module;

[0062] The evaporator 16 has a tail gas input end, a tail gas output end, a working medium input end, and a working medium output end;

[0063] The high-temperature compressor 17 has a working medium input end and a working medium output end;

[0064] The condenser 18 has a tail gas input end, a tail gas output end, a working medium input end, and a working medium output end;

[0065] The output pipe 4 of the body 1 is connected to the tail gas input end of the evaporator 16, the tail gas output end of the evaporator 16 is connected to the tail gas input end of the condenser 18, the working medium output end of the evaporator 16 is connected to the working medium input end of the high-temperature compressor 17, the working medium output end of the high-temperature compressor 17 is connected to the working medium input end of the condenser 18, the working medium output end of the condenser 18 is fixedly connected to the working medium input end of the evaporator 16, and the tail gas output end of the condenser 18 is connected to the recovery input end of the dryer 15;

[0066] Among them, the heat-exchange working medium circulates among the evaporator 16, the high-temperature compressor 17, and the condenser 18.

[0067] After the dryer 15 discharges the tail gas with dust, it will enter the dust removal channel 2 of the machine body 1 through the input pipe 3 of the machine body 1 via a pipeline. A draft fan 19 can be installed between the pipeline of the dryer 15 and the machine body 1 to transmit the tail gas;

[0068] After the tail gas with dust enters the dust removal channel 2 of the machine body 1, it will pass through the dust-proof net 5 in the dust removal channel 2, enabling the dust-proof net 5 to intercept the dust contained in the tail gas, preventing the tail gas output by the machine body 1 from carrying dust, thus achieving a dust removal effect;

[0069] The dedusted tail gas enters the evaporator 16, where it evaporates and exchanges heat with the heat transfer working fluid inside the evaporator 16. While evaporating and exchanging heat with the tail gas, it also achieves a dehumidification effect, removing the moisture contained in the tail gas. The evaporator 16 is connected to a condensate tank, and the condensate water obtained after dehumidifying the tail gas will flow into the condensate tank.

[0070] After the heat transfer working fluid inside the evaporator 16 absorbs the heat of the tail gas, it will enter the high-temperature compressor 17 and be compressed into a high-temperature and high-pressure refrigerant and enter the condenser 18;

[0071] At the same time, the tail gas output end of the evaporator 16 is connected to the tail gas inlet end of the condenser 18 via a pipeline. A draft fan 19 can be installed on the pipeline to transmit the tail gas. The tail gas cooled by heat exchange in the evaporator 16 is output from the tail gas output end of the evaporator 16 and enters the condenser 18;

[0072] At this time, in the condenser 18, the tail gas that has been cooled and dehumidified continues to exchange heat with the refrigerant compressed at high temperature, thereby heating the tail gas to obtain dry and high-temperature tail gas;

[0073] Then the condenser 18 outputs the dried high-temperature tail gas, which enters the recovery input end of the dryer 15 through the tail gas output end of the condenser 18, and then enters the inside of the dryer 15 to cooperate with steam to dry the wet material, realizing the waste heat recovery and recycling of the tail gas, making the drying effect of the dryer 15 better.

[0074] At the same time, the low-temperature working fluid after heat exchange in the condenser 18 is output from the working fluid output end of the condenser 18 and enters the evaporator 16 again, thereby exchanging heat with the high-temperature tail gas entering the evaporator 16 to achieve an overall cycle.

[0075] Through this structural design, by setting up a dust removal module, the tail gas output from the dryer 15 can first be dusted by the dust removal module, then the waste heat can be recovered, and the tail gas can be recycled, preventing dust from entering the waste heat recovery device of the tail gas through the tail gas, which may cause problems such as blockage, affecting the system efficiency, causing equipment damage, affecting the heat exchange efficiency, and the quality of the tail gas recovery and utilization. Embodiment 2

[0076] This embodiment provides a tail gas waste heat recovery device for calcium formate production. In addition to including the technical solutions of the above embodiment, it also has the following technical features.

[0077] Furthermore, the installation assembly includes:

[0078] An installation frame 6, which is a frame body, and the dust-proof net 5 is located inside the frame body of the installation frame 6 and fixedly connected to the inner ring of the installation frame 6;

[0079] An installation groove 7 is provided on the machine body 1 for inserting the installation frame 6 from the outside, and the installation groove 7 is communicated with the dust removal channel 2;

[0080] Wherein, after the installation frame 6 is inserted into the machine body 1 through the installation groove 7, the dust-proof net 5 is located in the dust removal channel 2, and the front side of the installation frame 6 seals the installation groove 7.

[0081] In this technical solution, the dust-proof net 5 can be detachably connected to the machine body 1 through the cooperation of the installation frame 6 and the installation groove 7. When the dust-proof net 5 needs to be installed, the installation frame 6 is inserted towards the installation groove 7. After insertion, the front side of the installation frame 6 seals the installation groove 7 to prevent dust leakage. At the same time, after the installation frame 6 is completely inserted into the installation groove 7, the dust-proof net 5 will also be located in the dust removal channel 2, and the tail gas passing through the dust-proof net 5 has a dust removal effect;

[0082] Through this structural design, by setting the installation frame 6 and the installation groove 7, the dust-proof net 5 is detachably connected to the machine body 1, so that after the dust-proof net 5 accumulates dust after long-term use, the dust on the upper part of the dust-proof net 5 can be cleaned by taking out the installation frame 6 to prevent the dust-proof net 5 from being blocked. At the same time, if the dust-proof net 5 is damaged, a new dust-proof net 5 can also be replaced by disassembling the installation frame 6, making the overall use effect better. Embodiment 3

[0083] This embodiment provides a tail gas waste heat recovery device for calcium formate production. In addition to including the technical solutions of the above embodiment, it also has the following technical features.

[0084] Furthermore, two groups of the dust-proof net 5 and the installation frame 6 are arranged at intervals left and right, and two installation grooves 7 are provided on the front side of the machine body 1.

[0085] In this technical solution, by setting two groups of dust-proof nets 5, the dust removal effect is better. At the same time, if one of the dust-proof nets 5 needs to be cleaned, after one of the installation frames 6 is taken out, the tail gas can still be dust-removed through the other group of dust-proof nets 5, so that one of the installation frames 6 can be taken out to clean the dust-proof net 5 while the machine body 1 is working, which is more convenient and does not affect the dust removal effect when cleaning the dust-proof net 5.

[0086] In another embodiment, it can be set as a group of dust-proof nets 5 and a group of filter nets (not shown in the figure). The filter net is used to filter impurities in the tail gas, and the dust-proof net 5 is used to remove dust in the tail gas, so that the quality of the tail gas output by the machine body 1 is better. Embodiment 4

[0087] This embodiment provides a waste heat recovery device for tail gas in calcium formate production. In addition to including the technical solutions of the above embodiments, it also has the following technical features.

[0088] Furthermore, it further includes:

[0089] A cover body 8, which is hollowly arranged. One end of the cover body 8 is rotatably connected to the outer surface of the machine body 1, and the other end of the cover body 8 is magnetically connected to the outer surface of the machine body 1;

[0090] Wherein, the cover body 8 covers two installation grooves 7.

[0091] Through this structural design, by covering the installation groove 7 part of the machine body 1 with the cover body 8, it can protect the installation frame 6 and the installation groove 7, avoid deformation of the installation groove 7 caused by impact, so that the installation frame 6 cannot be inserted. At the same time, it can also prevent misoperation. When the installation frame 6 needs to be replaced, the cover body 8 is rotated and opened, and it can also prevent powder from leaking from the installation frame 6 and the installation groove 7. Embodiment 5

[0092] This embodiment provides a waste heat recovery device for tail gas in calcium formate production. In addition to including the technical solutions of the above embodiments, it also has the following technical features.

[0093] Furthermore, the collection assembly includes:

[0094] A collection box 9, which has at least two accommodation grooves 10;

[0095] A through groove 11, which is penetrated through the machine body 1, and its contour matches that of the collection box 9;

[0096] Wherein, the collection box 9 is slidably arranged back and forth in the through groove 11 of the machine body 1. The lower end of the area near the input pipe 3 of the dust removal channel 2 is communicated with the upper end of the through groove 11. When one of the accommodation grooves 10 of the collection box 9 is located in the through groove 11 of the machine body 1 and corresponds to the dust removal channel 2, the other accommodation groove 10 of the collection box 9 is exposed outside the machine body 1;

[0097] In this technical solution, due to the provision of the collection box 9, the collection box 9 is slidably arranged in the through groove 11 of the machine body 1 in a pull-out manner. When one of the receiving grooves 10 of the collection box 9 is located in the through groove 11 of the machine body 1 and corresponds to the dust removal channel 2, the other receiving groove 10 of the collection box 9 is exposed outside the machine body 1. During the dust removal process of the tail gas, since the lower end of the area near the input pipe 3 of the dust removal channel 2 is communicated with the upper end of the through groove 11, when the dust falls due to its own weight, it will fall into the receiving groove 10 of the collection box 9 currently located in the through groove 11, thus preventing the dust from accumulating in the dust removal channel 2. After the receiving groove 10 in the through groove 11 has collected dust for a period of time, pull the collection box 9 to drive the other receiving groove 10 into the through groove 11. At this time, the original receiving groove 10 located in the through groove 11 will be exposed outside the machine body 1, and at this time, the receiving groove 10 originally located in the through groove 11 and filled with dust can be cleaned, and the dust in the receiving groove 10 originally located in the through groove 11 can be cleaned out;

[0098] Then, after the machine body 1 continues to remove dust for a certain period of time, pull the collection box 9 again to make the cleaned receiving groove 10 enter the through groove 11 to collect dust, and then clean the exposed receiving groove 10, and so on in a cycle;

[0099] Through this structural design, by providing the collection box 9 and opening the receiving groove 10, the receiving groove 10 can collect the dust in the dust removal channel 2, preventing the dust from accumulating in the dust removal channel 2. At the same time, multiple receiving grooves 10 are provided. By pulling the collection box 9 to switch different receiving grooves 10 to correspond to the dust removal channel 2, after a certain period of dust accumulation in one receiving groove 10, by pulling the collection box 9 to switch another receiving groove 10 without dust accumulation to correspond to the dust removal channel 2 to collect dust, it plays a role of rapid switching, and at the same time, it does not affect the dust collection when cleaning the dust in the receiving groove 10.

[0100] The collected dust can be reused to avoid waste of resources. Embodiment 6

[0101] This embodiment provides a tail gas waste heat recovery device for calcium formate production. In addition to including the technical solution of the above embodiment, it also has the following technical features.

[0102] Furthermore, it further includes:

[0103] A cover 12, an opening 13 is provided at the lower end of the collection box 9, the opening 13 is communicated with the receiving groove 10, and the cover 12 is spirally arranged in the opening 13 for plugging the opening 13;

[0104] Among them, the lower surface of the cover 12 is parallel to the lower surface of the collection box 9.

[0105] With this structural design, by providing the opening 13 and the cover 12, it is convenient to clean the dust in the receiving groove 10. The cover 12 can be opened, and the dust can be cleaned out through the opening 13. A container can be placed below the opening 13 to catch the dust, making the overall cleaning more labor-saving. Embodiment 7

[0106] This embodiment provides a device for recovering waste heat from tail gas in calcium formate production. In addition to including the technical solutions of the above embodiments, it also has the following technical features.

[0107] Furthermore, it further includes:

[0108] A handle 14 is fixedly provided at the front and rear ends of the collection box 9, the front end of the installation frame 6, and the outside of the cover body 8. The cover body 8 covers the handle 14 of the installation frame 6.

[0109] With this structural design, by providing the handle 14, it is convenient to pull the collection box 9 to move back and forth, convenient to take out the installation frame 6, and convenient to rotate and open the cover body 8. Embodiment 8

[0110] This embodiment provides a device for recovering waste heat from tail gas in calcium formate production. In addition to including the technical solutions of the above embodiments, it also has the following technical features.

[0111] Furthermore, the air outlet of the input pipe 3 is inclined downward and faces the upper part of the dust-proof net 5.

[0112] With this structural design, since the air outlet of the input pipe 3 is inclined downward and faces the upper part of the dust-proof net 5, the entering direction of the tail gas can be guided through the air outlet of the input pipe 3, thereby blowing out a downward-slanting air flow. The tail gas introduced by the input pipe 3 can wash the dust-proof net 5 from top to bottom, washing the dust on the dust-proof net 5 into the receiving groove 10, avoiding the accumulation of dust on the dust-proof net 5, making the overall use effect better and the service life longer.

[0113] The embodiments of the present application have been described above in conjunction with the accompanying drawings. Without conflict, the embodiments in the specification of the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all of them belong to the protection scope of the present application.

Claims

1. A tail gas waste heat recovery device for calcium formate production, characterized in that: include: A dust removal module, used for removing dust from exhaust gas, the dust removal module comprising a body (1); A dust removal passage (2), wherein the machine body (1) has a dust removal passage (2), and the machine body (1) has an input pipe (3) for introducing exhaust gas into the dust removal passage (2) and an output pipe (4) for discharging exhaust gas from the dust removal passage (2); A dustproof net (5) fixedly arranged in the dust removal passage (2) of the machine body (1); An installation component, wherein the dust screen (5) is connected to the machine body (1) via the installation component; A collecting component, wherein the machine body (1) is provided with a collecting component for collecting dust; The heat pump module is used to dehumidify the exhaust gas after dust removal, heat it up, and output high-temperature exhaust gas.

2. The tail gas waste heat recovery device for calcium formate production according to claim 1, characterized in that: The installation assembly includes: An installation frame (6), which is a frame body, wherein the dustproof net (5) is located inside the frame body of the installation frame (6) and is fixedly connected to the inner ring of the installation frame (6); A mounting groove (7), wherein the body (1) is provided with a mounting groove (7) for inserting the mounting frame (6) from the outside, and the mounting groove (7) is arranged to be in communication with the dust removal passage (2); Wherein, after the installation frame (6) is inserted into the machine body (1) through the installation groove (7), the dustproof net (5) is located in the dust removal channel (2), and the front side of the installation frame (6) blocks the installation groove (7).

3. A tail gas waste heat recovery device for calcium formate production according to claim 2, characterized in that: The dustproof screen (5) and the installation frame (6) are arranged in two groups at intervals on the left and right, and two installation slots (7) are provided on the front side of the machine body (1).

4. The tail gas waste heat recovery device for calcium formate production according to claim 3, characterized in that: Also includes: A cover body (8) is hollow, one end of the cover body (8) is rotatably connected to the outer surface of the body (1), and the other end of the cover body (8) is magnetically connected to the outer surface of the body (1); Wherein, the cover body (8) is arranged on the two installation grooves (7).

5. The tail gas waste heat recovery device for calcium formate production according to claim 4, characterized in that: The collection component comprises: A collecting box (9) having at least two receiving slots (10); A through slot (11) is formed through the body (1) and has a contour matching that of the collecting box (9); The collecting box (9) is slidably arranged in a through groove (11) of the machine body (1) in a forward and backward manner, and the lower end of the dust removal passage (2) in a region close to the end of the input pipe (3) is connected to the upper end of the through groove (11). When one of the receiving grooves (10) of the collecting box (9) is located in the through groove (11) of the machine body (1) and corresponds to the dust removal passage (2), the other receiving groove (10) of the collecting box (9) is exposed to the outside of the machine body (1).

6. The tail gas waste heat recovery device for calcium formate production according to claim 5, characterized in that: Also includes: A sealing cover (12), wherein the lower end of the collecting box (9) is provided with an opening (13), the opening (13) is arranged to be in communication with the containing groove (10), and the sealing cover (12) is spirally arranged in the opening (13) to seal the opening (13); Wherein, the lower surface of the sealing cover (12) is parallel to the lower surface of the collecting box (9).

7. A waste heat recovery device for tail gas used in calcium formate production according to any one of claims 5-6, characterized in that: Also includes: A handle (14) is fixedly provided at the front and rear ends of the collection box (9), the front end of the installation frame (6), and the outer side of the cover body (8), and the cover body (8) is covered on the handle (14) of the installation frame (6).

8. The tail gas waste heat recovery device for calcium formate production according to claim 7, characterized in that: The air outlet of the input pipe (3) is inclined downward and faces the upper part of the dustproof net (5).

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