A heating constant temperature system for preventing smoke dust from condensing in a bag-type dust collector

Abstract

This invention relates to the field of dust removal equipment and discloses a heating and temperature control system for preventing smoke and dust condensation in a baghouse dust collector. The system includes a dust collector with a dust collection bag assembly installed inside. A shell heating groove is provided inside the dust collector's casing. An inlet pipe and a return pipe are connected to the dust collector, both communicating with the shell heating groove. A heating box is connected to one end of the return pipe, and two branch pipes are connected to one end of the inlet pipe. These branch pipes are respectively connected to the output end of a hot air fan and the output end of a cooling fan. The input end of the hot air fan is connected to the heating box. A temperature sensor is installed inside the inlet pipe. This invention, by providing a shell heating groove for circulating hot air within the dust collector's casing, and simultaneously introducing hot air into the shell heating groove through the heating box and the hot air fan, while simultaneously introducing cold air through the cooling fan, facilitates the adjustment of the dust collector's heating temperature.

Description

Technical Field

[0001] This invention belongs to the field of dust removal equipment, specifically a heating and temperature control system for preventing smoke and dust condensation in bag filters. Background Technology

[0002] Baghouse dust collectors are widely used dust purification equipment in industrial production. With advantages such as high filtration efficiency, wide applicability to various dust types, and stable operation, they are widely used in flue gas purification in industries such as metallurgy, chemicals, building materials, and power. Their core working principle is to separate flue gas from dust by filtering and trapping dust particles in the flue gas through filter bags, thereby purifying the flue gas and achieving emission standards. The filtration performance of the filter bags directly determines the purification effect and service life of the baghouse dust collector. A baghouse dust collector consists of a shell, inlet and outlet pipes, a dust hopper, filter bags, a negative pressure pump, and a backflushing pipe. The negative pressure pump controls the flow direction of the filtered gas, and the filter bags filter the dust in the gas. However, the following drawbacks still exist: Since industrial flue gas usually contains a certain amount of water vapor, when the flue gas temperature drops below the dew point temperature, the water vapor will condense on the surface of the filter bag, inside the dust collector shell and inside the pipe to form condensate. This will cause the dust and condensate to mix and form a viscous dust paste, which will hinder subsequent filtration and affect the filtration efficiency. Summary of the Invention

[0003] In view of the above situation and to overcome the defects of the prior art, the present invention provides a heating and temperature control system for preventing smoke and dust condensation in bag filters, which effectively solves the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a heating and constant temperature system for preventing smoke and dust condensation in a bag filter, comprising a dust collector, wherein a dust collector bag assembly is installed inside the dust collector, and a shell heating groove is provided inside the shell of the dust collector; The dust collector is equipped with an air inlet pipe and a return pipe. Both the air inlet pipe and the return pipe are connected to the heating tank in the shell. A heating box is installed at one end of the return pipe, and two branch pipes are installed at one end of the air inlet pipe. The two branch pipes are respectively connected to the output end of the hot air blower and the output end of the cold air blower. The input end of the hot air blower is connected to the heating box. A temperature sensor is installed inside the air inlet pipe. The dust collector bag assembly includes a fixing ring fixedly installed on the top wall of the dust collector, a ring tube provided below the fixing ring, longitudinal tubes installed at equal angles between the fixing ring and the ring tube, a dust collector cloth installed between two adjacent longitudinal tubes, the upper and lower ends of the dust collector cloth being connected to the fixing ring and the ring tube respectively, and a bottom baffle fixedly installed on the inner side of the ring tube. The fixing ring, the ring tube and each longitudinal tube are combined to form a bag frame, and combined with each dust collector cloth to form a bag. A negative pressure exhaust pump is installed at the top of the dust collector. The negative pressure exhaust pump creates negative pressure inside the filter bag. An air inlet longitudinal pipe is coaxially arranged inside the filter bag. Heating backflushing components are evenly arranged on the air inlet longitudinal pipe. The air inlet longitudinal pipe is connected to the air inlet pipe. The heated backflushing assembly includes a distribution branch pipe fixedly installed on the outer wall of the intake longitudinal pipe. A heat radiation pipe is fixedly installed at one end of the distribution branch pipe. The heat radiation pipe is located close to the dust removal cloth, and both ends of the heat radiation pipe are respectively connected to the longitudinal pipes on both sides of the corresponding dust removal cloth. The longitudinal pipes are connected to the annular pipe. An exhaust side pipe is installed on one side of the longitudinal pipe and is connected to the return pipe. A flow control component is installed on the distribution branch pipe. The flow control component includes a spherical shell fixed on the distribution branch pipe. A spherical valve core is rotatably installed inside the spherical shell. A central groove is opened inside the spherical valve core. Side grooves are opened on both sides and the bottom of the central groove. The side grooves on both sides are connected to the distribution branch pipe. Backflushing cleaning components are arranged on the upper and lower sides of the spherical shell. A working drive component is arranged on the back of the spherical shell.

[0005] Preferably, a movable groove is provided on the side groove at the bottom, and a movable block is movably installed inside the movable groove. A straight connecting groove is provided inside the movable block, and the top end of the straight connecting groove extends to the bottom end of the movable block. An L-shaped connecting groove is provided at equal angles around the straight connecting groove, and one end of the L-shaped connecting groove extends to the bottom end of the movable block. The bottom end of the L-shaped connecting groove is closed by the inner bottom wall of the movable groove. A first spring is installed at equal angles on the top end of the movable block, and the top end of the first spring is fixedly connected to the inner top wall of the movable groove.

[0006] Preferably, the backflushing cleaning component includes connecting pipes fixedly installed at the upper and lower ends of the spherical shell. The connecting pipes are connected to the inner cavity of the spherical shell. A U-shaped frame is fixedly installed at the end of the connecting pipe away from the spherical shell. A rotating head is provided on the inner side of the U-shaped frame. An air outlet backflushing head is fixedly installed on the side of the rotating head near the dust removal cloth. The side of the air outlet backflushing head near the dust removal cloth is set as an air outlet. The air outlet backflushing head is connected to the rotating head.

[0007] Preferably, a fixing pipe is fixedly installed on one side of the U-shaped frame, one end of the fixing pipe is inserted into the inside of the rotating head, so that the rotating head and the fixing pipe are rotatably connected, a rotating sealing ring is provided between the rotating head and the fixing pipe, and a connecting hose is installed between the other end of the fixing pipe and the connecting pipe.

[0008] Preferably, a rotating shaft is fixedly installed on the side of the rotating head away from the fixed tube, the rotating shaft is coaxially arranged with the fixed tube, and a side gear is coaxially installed on one end of the rotating shaft.

[0009] Preferably, the working drive component includes a fixed box fixedly installed on the back of the spherical shell, an elliptical cam rotatably installed on the inner side of the fixed box, the elliptical cam being fixedly connected to the output shaft of the drive motor, the drive motor being installed on the fixed box, and two pressure plates being provided inside the fixed box, the two pressure plates being symmetrically arranged on the upper and lower sides of the elliptical cam, and a toothed plate being installed on the side of the two pressure plates that are far apart from each other, the two toothed plates being meshed with the upper and lower side gears respectively.

[0010] Preferably, two sliding grooves are symmetrically opened on one side of the fixed box, and a slider is fixedly installed on one side of the pressure plate. The slider is slidably connected to the sliding groove. A connecting plate is provided on one side of the fixed box, and two connecting rods are symmetrically hinged on one side of the connecting plate. The ends of the two connecting rods are respectively hinged to the two sliders.

[0011] Preferably, guide rods are symmetrically installed on one side of the fixed box, the connecting plate is slidably connected to the guide rods, and a second spring is installed between the connecting plate and the fixed box.

[0012] Preferably, a first rotating shaft is coaxially mounted on the back of the spherical valve core, and a small gear is coaxially mounted on the first rotating shaft. A second rotating shaft is coaxially mounted on one side of the elliptical cam, and a large gear is coaxially mounted on the second rotating shaft. The small gear and the large gear are meshed and connected.

[0013] Compared with the prior art, the beneficial effects of the present invention are: (1) In this invention, a shell heating groove for circulating hot air is provided inside the shell of the dust collector to heat the inside of the dust collector and achieve the effect of preventing condensation. At the same time, hot air is introduced into the shell heating groove through the heating box and hot air fan, while cold air is introduced into the shell heating groove through the matching cold air fan, so as to facilitate the adjustment of the heating temperature of the dust collector. (2) In this invention, a filter bag is formed by combining a fixed ring, a ring tube, various longitudinal tubes and various dust removal cloths. At the same time, hot air is introduced into the heating groove of the shell and simultaneously enters the longitudinal tube and the ring tube. Meanwhile, the dust removal cloth is close to the inner side of the filter bag and heat radiation tubes are set at equal intervals along its length to generate heat radiation on the dust removal cloth and heat the dust removal cloth, thereby avoiding condensation on the dust removal cloth and ensuring the filtration and dust removal effect. (3) In this invention, when the two L-shaped connecting grooves are connected to the distribution branch pipe, hot air circulation is realized to heat the dust removal cloth and prevent condensation. When the two side grooves are connected to the two connecting pipes respectively, air can be blown out from the upper and lower air outlet back-blowing heads toward the dust removal cloth to achieve back-flushing cleaning. At the same time, pulse back-flushing is realized through the continuous rotation of the ball valve core. (4) In this invention, when the movable slot is set at the bottom of the middle slot, the end of the L-shaped connecting slot on the movable block is closed by the bottom wall of the movable slot, which facilitates the flow of hot air. When the spherical valve core rotates to the side of the movable slot close to the intake longitudinal pipe, the air can push the movable block to move, which facilitates the intake of air into the two connecting pipes for backflush. (5) In this invention, the upper and lower toothed plates are driven to move longitudinally and reciprocally by rotating the elliptical cam, which in turn drives the air outlet back-blowing head to swing back and forth, expanding the back-blowing range and improving the cleaning effect. At the same time, with the cooperation of the large gear and the small gear, the elliptical cam rotates once and drives the spherical valve core to rotate multiple times, so that when the spherical valve core is in the back-blowing state, the air outlet back-blowing head can stay at multiple angles for back-blowing. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0015] In the attached diagram: Figure 1 This is a schematic diagram of the heating and temperature control system for preventing smoke and dust condensation in a bag filter according to the present invention; Figure 2 This is a schematic diagram of the dust collector housing structure of the present invention; Figure 3 This is a schematic diagram of the dust collector bag assembly structure of the present invention; Figure 4 This is a schematic diagram of the internal structure of the bag of the present invention; Figure 5 This is a schematic diagram of the heating and recoil assembly structure of the present invention; Figure 6 This is a schematic diagram of the flow control component structure of the present invention; Figure 7 This is a schematic diagram of the working drive component structure of the present invention; Figure 8 This is a schematic diagram of the backflushing cleaning component structure of the present invention; Figure 9 This is a schematic diagram of the connection structure between the spherical valve core and the elliptical cam of the present invention; In the diagram: 1. Dust collector; 2. Inlet pipe; 3. Return pipe; 4. Heating box; 5. Hot air fan; 6. Cooling fan; 7. Shell heating groove; 8. Dust collector bag assembly; 81. Fixing ring; 82. Ring pipe; 83. Longitudinal pipe; 84. Dust collector cloth; 85. Exhaust side pipe; 86. Inlet longitudinal pipe; 87. Heating backflushing assembly; 871. Distribution branch pipe; 872. Heat radiation pipe; 873. Flow control component; 8731. Spherical shell; 8732. Spherical valve core; 8733. Central groove; 8734. Side groove; 8735. Movable groove; 8736. Movable block; 8737. Straight connecting groove; 8738. L-shaped connecting groove; 87 39. First spring; 874. Working drive component; 8741. Fixed box; 8742. Pressure plate; 8743. Toothed plate; 8744. Elliptical cam; 8745. Drive motor; 8746. Slide groove; 8747. Slider; 8748. Connecting plate; 8749. Connecting rod; 87410. Second spring; 87411. Guide rod; 875. Backflushing cleaning component; 8751. Connecting pipe; 8752. U-shaped frame; 8753. Rotating head; 8754. Air outlet backflushing head; 8755. Fixed pipe; 8756. Connecting hose; 8757. Rotating shaft; 8758. Side gear; 876. Small gear; 877. Large gear. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0017] Example 1, by Figures 1-2 This invention relates to a heating and temperature control system for preventing condensation of smoke and dust in a baghouse dust collector. The system includes a dust collector 1, with a dust collector bag assembly 8 installed inside. A shell heating groove 7 is provided inside the casing of the dust collector 1. An inlet pipe 2 and a return pipe 3 are connected to the dust collector 1, both communicating with the shell heating groove 7. A heating box 4 is connected to one end of the return pipe 3. Two branch pipes are connected to one end of the inlet pipe 2, respectively connected to the output end of a hot air fan 5 and the output end of a cooling fan 6. The input end of the hot air fan 5 is connected to the heating box 4. A temperature sensor is installed inside the inlet pipe 2. The shell heating groove 7, which circulates hot air within the casing of the dust collector 1, heats the interior of the dust collector 1, thus preventing condensation. Simultaneously, hot air is introduced into the shell heating groove 7 through the heating box 4 and the hot air fan 5, while cold air is supplied proportionally through the cooling fan 6, facilitating temperature adjustment of the dust collector 1.

[0018] Depend on Figures 3-4 The dust collector bag assembly 8 includes a fixing ring 81 fixedly installed on the inner top wall of the dust collector 1. A ring pipe 82 is provided below the fixing ring 81. A longitudinal pipe 83 is installed at an equal angle between the fixing ring 81 and the ring pipe 82. A dust collector cloth 84 is installed between two adjacent longitudinal pipes 83. The upper and lower ends of the dust collector cloth 84 are connected to the fixing ring 81 and the ring pipe 82, respectively. A bottom baffle is fixedly installed on the inner side of the ring pipe 82. The fixing ring 81, the ring pipe 82, and each longitudinal pipe 83 form a bag frame and are combined with each dust collector cloth 84 to form a bag. A negative pressure exhaust pump is installed at the top of the dust collector 1. The negative pressure exhaust pump creates a negative pressure inside the bag. An air inlet longitudinal pipe 86 is coaxially arranged on the inner side of the bag. Heating backflushing components 87 are evenly arranged on the air inlet longitudinal pipe 86. The air inlet longitudinal pipe 86 is connected to the air inlet pipe 2.

[0019] Depend on Figure 5 The heating backflushing assembly 87 includes a distribution branch pipe 871 fixedly installed on the outer wall of the intake longitudinal pipe 86. A heat radiation pipe 872 is fixedly installed at one end of the distribution branch pipe 871. The heat radiation pipe 872 is positioned close to the dust collection cloth 84, and both ends of the heat radiation pipe 872 are respectively connected to the longitudinal pipes 83 on both sides of the corresponding dust collection cloth 84. The longitudinal pipes 83 are connected to the ring pipe 82. The fixed ring 81, ring pipe 82, each longitudinal pipe 83, and each dust collection cloth 84 are combined to form a filter bag. As air is introduced into the heating tank 7 of the housing, it simultaneously enters the longitudinal pipe 83 and the annular pipe 82. At the same time, the dust removal cloth 84 is close to the inner side of the bag and the heat radiation pipes 872 are equidistantly arranged along its length to generate heat radiation on the dust removal cloth 84 and heat the dust removal cloth 84, thereby preventing condensation on the dust removal cloth 84 and ensuring the filtration and dust removal effect. An exhaust side pipe 85 is installed on one side of the longitudinal pipe 83, and the exhaust side pipe 85 is connected to the return pipe 3. A flow control component 873 is installed on the distribution branch pipe 871.

[0020] Depend on Figure 6The flow control component 873 includes a spherical housing 8731 fixed on a distribution branch pipe 871. A spherical valve core 8732 is rotatably mounted inside the spherical housing 8731. A central groove 8733 is formed inside the spherical valve core 8732. Side grooves 8734 are formed on both sides and at the bottom of the central groove 8733. The side grooves 8734 on both sides are connected to the distribution branch pipe 871. Backwash cleaning components 875 are provided on the upper and lower sides of the spherical housing 8731. A working drive component 874 is provided on the back of the spherical housing 8731. A movable groove 8735 is formed on the side groove 8734 at the bottom. A movable block 8736 is movably mounted inside the movable groove 8735. A straight connecting groove 8737 is formed inside the movable block 8736. The top end of the straight connecting groove 8737 extends through the movable block 8736. At the bottom, an L-shaped connecting groove 8738 is formed at equal angles around the circumference of the straight connecting groove 8737. One end of the L-shaped connecting groove 8738 extends to the bottom of the movable block 8736. The bottom end of the L-shaped connecting groove 8738 is closed by the inner bottom wall of the movable groove 8735. A first spring 8739 is installed at equal angles on the top of the movable block 8736. The top of the first spring 8739 is fixedly connected to the inner top wall of the movable groove 8735. When the movable groove 8735 is located at the bottom of the middle groove 8733, the end of the L-shaped connecting groove 8738 on the movable block 8736 is closed by the inner bottom wall of the movable groove 8735, which facilitates the flow of hot air. When the ball valve core 8732 rotates to the side of the movable groove 8735 near the intake longitudinal pipe 86, the air can push the movable block 8736 to move, which facilitates the intake of air into the two connecting pipes 8751 for backflow.

[0021] Depend on Figure 8The backwash cleaning component 875 includes connecting pipes 8751 fixedly installed at the upper and lower ends of a spherical housing 8731. The connecting pipes 8751 are connected to the inner cavity of the spherical housing 8731. When the two L-shaped connecting slots 8738 are connected to the distribution branch pipes 871, hot air circulation is achieved to heat the dust removal cloth 84 and prevent condensation. When the two side slots 8734 are respectively connected to the two connecting pipes 8751, air can be blown out from the upper and lower air outlet back-blowing heads 8754 towards the dust removal cloth 84 to achieve backwash cleaning. Simultaneously, pulse backwashing is achieved through the continuous rotation of the spherical valve core 8732. A U-shaped frame 8752 is fixedly installed at the end of the connecting pipe 8751 away from the spherical housing 8731. A rotating head 8753 is provided on the inner side of the U-shaped frame 8752. The rotating head 8753 is close to the dust removal cloth 84. An air-blowing head 8754 is fixedly installed on the side, with the air-blowing head 8754 having an air outlet on the side closest to the dust removal cloth 84. The air-blowing head 8754 is connected to the rotating head 8753. A fixed pipe 8755 is fixedly installed on one side of the U-shaped frame 8752. One end of the fixed pipe 8755 is inserted into the rotating head 8753, making the rotating head 8753 rotatably connected to the fixed pipe 8755. A rotating sealing ring is provided between the rotating head 8753 and the fixed pipe 8755. A connecting hose 8756 is installed between the other end of the fixed pipe 8755 and the connecting pipe 8751. A rotating shaft 8757 is fixedly installed on the side of the rotating head 8753 away from the fixed pipe 8755. The rotating shaft 8757 is coaxially arranged with the fixed pipe 8755. A side gear 8758 is coaxially installed on one end of the rotating shaft 8757.

[0022] Depend on Figure 7 The drive unit 874 includes a fixed housing 8741 fixedly mounted on the back of a spherical housing 8731. An elliptical cam 8744 is rotatably mounted inside the fixed housing 8741. The elliptical cam 8744 is fixedly connected to the output shaft of a drive motor 8745. The drive motor 8745 is mounted on the fixed housing 8741. Two pressure plates 8742 are provided inside the fixed housing 8741. The two pressure plates 8742 are symmetrically arranged on the upper and lower sides of the elliptical cam 8744. A toothed plate 8743 is mounted on the side of the two pressure plates 8742 that is far apart from each other. The two toothed plates 8743 mesh with upper and lower side gears 8758 respectively. Next, two sliding grooves 8746 are symmetrically opened on one side of the fixed box 8741. A slider 8747 is fixedly installed on one side of the pressure plate 8742. The slider 8747 is slidably connected to the sliding groove 8746. A connecting plate 8748 is provided on one side of the fixed box 8741. Two connecting rods 8749 are symmetrically hinged on one side of the connecting plate 8748. The ends of the two connecting rods 8749 are respectively hinged to the two sliders 8747. A guide rod 87411 is symmetrically installed on one side of the fixed box 8741. The connecting plate 8748 is slidably connected to the guide rod 87411. A second spring 87410 is installed between the connecting plate 8748 and the fixed box 8741.

[0023] Depend on Figure 9 As shown, a first rotating shaft is coaxially mounted on the back of the spherical valve core 8732, and a small gear 876 is coaxially mounted on the first rotating shaft. A second rotating shaft is coaxially mounted on one side of the elliptical cam 8744, and a large gear 877 is coaxially mounted on the second rotating shaft. The small gear 876 meshes with the large gear 877. The rotation of the elliptical cam 8744 drives the upper and lower toothed plates 8743 to move longitudinally back and forth, thereby driving the air outlet back-blowing head 8754 to swing back and forth, expanding the back-flushing range and improving the cleaning effect. At the same time, with the cooperation of the large gear 877 and the small gear 876, the elliptical cam 8744 rotates once, causing the spherical valve core 8732 to rotate multiple times. This allows the air outlet back-blowing head 8754 to stay at multiple angles for back-flushing when the spherical valve core 8732 is in the back-flushing state.

[0024] Working principle: When the negative pressure exhaust pump is turned on during use, a negative pressure is formed in the filter bag formed by the fixed ring 81, the ring pipe 82, each longitudinal pipe 83 and each dust removal cloth 84. After the gas containing smoke and dust is introduced into the dust collector 1, the gas flows towards the dust removal bag assembly 8 and is filtered at the dust removal cloth 84. During dust removal, the heating box 4 heats the air, which is then input into the heating tank 7 of the housing through the hot air fan 5 and the air inlet pipe 2. At the same time, a temperature sensor is installed in the air inlet pipe 2, and cold air is sent into the air inlet pipe 2 by the cold air fan 6 to make the hot air and cold air mix. The temperature sensor controls the temperature of the air sent into the heating tank 7 of the housing at the required temperature. Meanwhile, the air in the heating tank 7 of the housing flows back to the heating box 4 through the return pipe 3 to achieve a reciprocating cycle. The high temperature air in the heating tank 7 of the housing keeps the inside of the dust collector 1 warm and prevents the dust-laden gas from condensing when it enters the dust collector 1. Another portion of the hot air is distributed to each distribution branch pipe 871 through the intake longitudinal pipe 86, and then enters the longitudinal pipe 83 through the heat radiation pipe 872. Finally, it enters the return pipe 3 from the exhaust side pipe 85 on one side of the ring pipe 82 and flows back. The heat radiation pipe 872 is set along the longitudinal length of the dust removal cloth 84. When the hot air flows through the heat radiation pipe 872, it generates heat radiation on the dust removal cloth 84, so that the temperature of the dust removal cloth 84 is also at a high level, thereby preventing the dust-laden air from condensing after contacting the dust removal cloth 84. In this state, the side grooves 8734 on both sides of the ball valve core 8732 are connected to the distribution branch pipe 871. After dust removal is completed, all equipment is turned off, and the air cooler 6 is turned on. The drive motor 8745 drives the elliptical cam 8744 to rotate, which in turn drives the ball valve core 8732 to rotate continuously through the large gear 877 and the small gear 876. It is necessary to control the ball valve core 8732 to rotate to the side where the movable groove 8735 faces the air intake longitudinal pipe 86, and then the drive motor 8745 stops for a period of time. The other two side grooves 8734 are connected to the two connecting pipes 8751 respectively. During this process, the cold air exerts pressure on the end face of the movable block 8736, pushing it to move and opening the end of the L-shaped connecting groove 8738. At this time, the cold air smoothly enters into the middle groove 8733, and then enters the upper and lower connecting pipes 8751 from the other two side grooves 8734 respectively. Then it blows out from the upper and lower air outlet back-blowing heads 8754 toward the dust removal cloth 84 to achieve back-flushing. At the same time, the rotation of the ball valve core 8732 achieves pulse back-flushing. During the rotation of the elliptical cam 8744, under the action of the elliptical cam 8744 and the second spring 87410, the upper and lower toothed plates 8743 move longitudinally back and forth. The toothed plates 8743 mesh with the side gear 8758, thereby driving the air-blowing head 8754 to swing back and forth, expanding the backwash range and improving the backwash cleaning effect. The diameter of the large gear 877 connected to the elliptical cam 8744 is larger than that of the small gear 876 connected to the ball valve core 8732, so that the elliptical cam 8744 can drive the ball valve core 8732 to rotate multiple times for one rotation. When the distribution branch pipe 871 corresponds to the side groove 8734 with the movable block 8736, the air-blowing head 8754 can be at different angles.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0026] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heating and temperature control system for preventing condensation of smoke and dust in a baghouse dust collector, comprising a dust collector (1), characterized in that: The dust collector (1) is equipped with a dust collector bag assembly (8) inside, and a shell heating groove (7) is opened inside the shell of the dust collector (1). The dust collector (1) is connected to an air inlet pipe (2) and a return pipe (3). Both the air inlet pipe (2) and the return pipe (3) are connected to the heating tank (7) of the shell. A heating box (4) is connected to one end of the return pipe (3). Two branch pipes are connected to one end of the air inlet pipe (2). The two branch pipes are connected to the output end of the hot air blower (5) and the output end of the cold air blower (6), respectively. The input end of the hot air blower (5) is connected to the heating box (4). A temperature sensor is installed inside the air inlet pipe (2). The dust collector bag assembly (8) includes a fixing ring (81) fixedly installed on the inner top wall of the dust collector (1), a ring tube (82) is provided below the fixing ring (81), a longitudinal tube (83) is installed at equal angles between the fixing ring (81) and the ring tube (82), a dust collector cloth (84) is installed between two adjacent longitudinal tubes (83), the upper and lower ends of the dust collector cloth (84) are connected to the fixing ring (81) and the ring tube (82) respectively, and a bottom baffle is fixedly installed on the inner side of the ring tube (82). The fixing ring (81), the ring tube (82) and each longitudinal tube (83) are combined to form a bag frame, and combined with each dust collector cloth (84) to form a bag. A negative pressure exhaust pump is installed at the top of the dust collector (1). The negative pressure exhaust pump creates negative pressure inside the filter bag. An air inlet longitudinal pipe (86) is coaxially arranged inside the filter bag. Heating backflushing components (87) are evenly arranged on the air inlet longitudinal pipe (86). The air inlet longitudinal pipe (86) is connected to the air inlet pipe (2). The heating backflushing assembly (87) includes a distribution branch pipe (871) fixedly installed on the outer wall of the intake longitudinal pipe (86). A heat radiation pipe (872) is fixedly installed at one end of the distribution branch pipe (871). The heat radiation pipe (872) is located close to the dust removal cloth (84), and both ends of the heat radiation pipe (872) are respectively connected to the longitudinal pipes (83) on both sides of the corresponding dust removal cloth (84). The longitudinal pipes (83) are connected to the ring pipe (82). An exhaust side pipe (85) is installed on one side of the longitudinal pipe (83). The exhaust side pipe (85) is connected to the return pipe (3). A flow control component (873) is installed on the distribution branch pipe (871). The flow control component (873) includes a spherical housing (8731) on a fixed distribution branch pipe (871). A spherical valve core (8732) is rotatably installed inside the spherical housing (8731). A central groove (8733) is opened inside the spherical valve core (8732). Side grooves (8734) are opened on both sides and the bottom of the central groove (8733). The side grooves (8734) on both sides are connected to the distribution branch pipe (871). Backwash cleaning components (875) are provided on the upper and lower sides of the spherical housing (8731). A working drive component (874) is provided on the back of the spherical housing (8731).

2. The heating and temperature control system for preventing smoke and dust condensation in a bag filter according to claim 1, characterized in that: A movable groove (8735) is provided on the side groove (8734) at the bottom. A movable block (8736) is movably installed inside the movable groove (8735). A straight connecting groove (8737) is provided inside the movable block (8736). The top end of the straight connecting groove (8737) extends to the bottom end of the movable block (8736). An L-shaped connecting groove (8738) is provided at equal angles around the straight connecting groove (8737). One end of the L-shaped connecting groove (8738) extends to the bottom end of the movable block (8736). The bottom end of the L-shaped connecting groove (8738) is closed by the inner bottom wall of the movable groove (8735). A first spring (8739) is installed at equal angles on the top end of the movable block (8736). The top end of the first spring (8739) is fixedly connected to the inner top wall of the movable groove (8735).

3. A heating and temperature control system for preventing smoke and dust condensation in a baghouse dust collector according to claim 2, characterized in that: The backflushing cleaning component (875) includes a connecting pipe (8751) fixedly installed at the upper and lower ends of the spherical shell (8731). The connecting pipe (8751) is connected to the inner cavity of the spherical shell (8731). A U-shaped frame (8752) is fixedly installed at the end of the connecting pipe (8751) away from the spherical shell (8731). A rotating head (8753) is provided on the inner side of the U-shaped frame (8752). An air outlet backflushing head (8754) is fixedly installed on the side of the rotating head (8753) near the dust removal cloth (84). The side of the air outlet backflushing head (8754) near the dust removal cloth (84) is set as an air outlet. The air outlet backflushing head (8754) is connected to the rotating head (8753).

4. A heating and temperature control system for preventing smoke and dust condensation in a baghouse dust collector according to claim 3, characterized in that: A fixing tube (8755) is fixedly installed on one side of the U-shaped frame (8752). One end of the fixing tube (8755) is inserted into the rotating head (8753) so that the rotating head (8753) and the fixing tube (8755) are rotatably connected. A rotating sealing ring is provided between the rotating head (8753) and the fixing tube (8755). A connecting hose (8756) is installed between the other end of the fixing tube (8755) and the connecting tube (8751).

5. A heating and temperature control system for preventing smoke and dust condensation in a baghouse dust collector according to claim 4, characterized in that: A rotating shaft (8757) is fixedly installed on the side of the rotating head (8753) away from the fixed tube (8755). The rotating shaft (8757) is coaxially arranged with the fixed tube (8755), and a side gear (8758) is coaxially installed on one end of the rotating shaft (8757).

6. A heating and temperature control system for preventing smoke and dust condensation in a baghouse dust collector according to claim 1, characterized in that: The working drive component (874) includes a fixed box (8741) fixedly installed on the back of the spherical shell (8731). An elliptical cam (8744) is rotatably installed on the inner side of the fixed box (8741). The elliptical cam (8744) is fixedly connected to the output shaft of the drive motor (8745). The drive motor (8745) is installed on the fixed box (8741). Two pressure plates (8742) are provided inside the fixed box (8741). The two pressure plates (8742) are symmetrically arranged on the upper and lower sides of the elliptical cam (8744). A toothed plate (8743) is installed on the side of the two pressure plates (8742) that is far away from each other. The two toothed plates (8743) are respectively meshed with the upper and lower side gears (8758).

7. A heating and temperature control system for preventing smoke and dust condensation in a baghouse dust collector according to claim 6, characterized in that: Two sliding grooves (8746) are symmetrically opened on one side of the fixed box (8741). A slider (8747) is fixedly installed on one side of the pressure plate (8742). The slider (8747) is slidably connected to the sliding groove (8746). A connecting plate (8748) is provided on one side of the fixed box (8741). Two connecting rods (8749) are symmetrically hinged on one side of the connecting plate (8748). The ends of the two connecting rods (8749) are respectively hinged to the two sliders (8747).

8. A heating and temperature control system for preventing smoke and dust condensation in a baghouse dust collector according to claim 7, characterized in that: Guide rods (87411) are symmetrically installed on one side of the fixed box (8741), the connecting plate (8748) is slidably connected to the guide rods (87411), and a second spring (87410) is installed between the connecting plate (8748) and the fixed box (8741).

9. A heating and temperature control system for preventing smoke and dust condensation in a baghouse dust collector according to claim 8, characterized in that: The ball valve core (8732) has a first rotating shaft coaxially mounted on its back side, and a small gear (876) is coaxially mounted on the first rotating shaft. The elliptical cam (8744) has a second rotating shaft coaxially mounted on one side, and a large gear (877) is coaxially mounted on the second rotating shaft. The small gear (876) and the large gear (877) are meshed and connected.

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