A dust remover for treating calcination flue gas of sodium sulfide prepared by sodium sulfate

Abstract

The application relates to the technical field of flue gas treatment, and discloses a dust remover for treating calcined flue gas of sodium sulfide prepared from sodium sulfate, which comprises a cloth bag, a framework assembly movably sleeved in the cloth bag, an auxiliary assembly sleeved in the framework assembly, a power assembly arranged at the bottom end of the framework assembly, and a connecting assembly connected with the auxiliary assembly at one end and connected with the power assembly at the other end. The shape of the auxiliary pipe is designed to make the flow velocity of the gas passing through the auxiliary pipe increase suddenly, and the high-speed airflow forms a negative pressure area in the auxiliary pipe to suck clean air around, so that the airflow multiplication effect is achieved. In addition, the power assembly rotates to perform winding and unwinding operations on the connecting assembly, the length of the auxiliary part is dynamically regulated, the amount of airflow escaping outward is reduced, the loss in the process of airflow moving downward is reduced, the airflow sprayed from the auxiliary part can fully clean the cloth bag, and the uniform cleaning effect of the upper and lower parts of the cloth bag is achieved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of flue gas treatment, and particularly relates to a dust remover for treating calcination flue gas of sodium sulfate preparation sodium sulfide. BACKGROUND

[0002] In the calcination process of the sodium sulfate preparation sodium sulfide process, mirabilite and coal are used as raw materials, and the raw material mirabilite and the raw material coal are uniformly mixed at a mass ratio of about 5:1, and are calcined at a high temperature of 1050-1150 DEG C for 80-100 minutes in a converter. After the reaction is completed, the melt is discharged to the lower part of the furnace, and the flue gas is discharged to the collection system.

[0003] The flue gas contains a large amount of harmful gases, such as sulfur dioxide, dust and particulate matter, carbon monoxide, nitrogen oxides and the like. Therefore, the high-temperature flue gas discharged from the converter is generally treated by denitrification, waste heat boiler recycling, flue gas purification, desulfurization, demisting and the like before being discharged into the high altitude, so as to effectively save energy and protect the environment and avoid air pollution.

[0004] The bag dust collector is a kind of purification equipment for capturing and separating solid particles in gas, and is widely used in industrial production process and plays an important role in advanced environmental protection industry. The existing bag dust collector mainly comprises a shell, a bag, a dust cleaning mechanism, an air inlet pipe, an air outlet, and a control system. After the dust-containing flue gas enters the dust collector, the dust particles in the flue gas are intercepted by the fiber layer on the bag, and the clean gas is discharged through the bag. When the dust particles accumulated on the bag are more, the dust cleaning mechanism nozzle arranged above the bag sprays the pulse airflow downward to shake the bag to shake off the dust particles accumulated on the bag.

[0005] However, the existing bag dust collector still has some defects in the use process: since the nozzle of the dust cleaning mechanism is fixedly arranged above the bag, the nozzle is far away from the bottom of the bag due to the length of the bag, and is affected by the air permeability of the bag. In the process of downward transmission of the pulse airflow, the gas strength will continuously attenuate, so that the dust cleaning effect of the lower part of the bag is poorer than that of the upper part of the bag, resulting in uneven dust cleaning effect of the upper and lower parts of the bag. Not only does it lead to more frequent dust cleaning operation, thereby affecting the filtering efficiency of the dust collector, but also more dust is accumulated in the lower part of the bag than in the upper part, which is prone to local damage. SUMMARY

[0006] The application provides a dust remover for treating calcination flue gas of sodium sulfate preparation sodium sulfide, which effectively reduces the loss of pulse airflow and improves the dust cleaning effect of the lower part of the bag, so as to solve the problem of uneven dust cleaning effect of the upper and lower parts of the bag caused by the length of the bag and the air permeability of the bag.

[0007] To achieve the above object, the application adopts the following technical scheme: a dust collector for treating calcined flue gas of sodium sulfate prepared sodium sulfide, comprising:

[0008] A cloth bag is a long column with one open end.

[0009] A skeleton assembly is sleeved in the inside of the cloth bag.

[0010] An auxiliary assembly is sleeved in the inside of the skeleton assembly, the auxiliary assembly comprises an auxiliary pipe and an auxiliary piece, and the bottom end of the auxiliary pipe is fixedly connected with the top end of the auxiliary piece.

[0011] A power assembly is arranged at the bottom end of the skeleton assembly.

[0012] A connecting assembly is connected with the auxiliary assembly at one end and connected with the power assembly at the other end.

[0013] The design of the auxiliary pipe makes the flow rate of the gas increase suddenly when the gas passes through the auxiliary pipe, and then the length of the auxiliary piece is dynamically regulated by the power assembly and the connecting assembly, so that the amount of gas flow escaping outward is reduced, thereby realizing the uniform dust cleaning effect of the upper and lower parts of the cloth bag.

[0014] Further, it further comprises a shell mechanism, which comprises:

[0015] A working shell is composed of a working cavity and an ash collecting cavity in the inside of the working shell, and the working cavity is located above the ash collecting cavity.

[0016] A repair plate is fixedly connected with the top end of the working shell through bolts.

[0017] A cleaning plate is fixedly connected with the bottom end of the working shell through bolts.

[0018] An air inlet pipe is fixedly communicated with the middle part of one side of the working shell.

[0019] An air outlet pipe is fixedly communicated with the top end of the other side of the working shell.

[0020] A partition plate is fixedly sleeved on one side of the working cavity of the working shell, and the partition plate is opposite to the air inlet pipe.

[0021] A support plate is fixedly sleeved on the top end of the working cavity of the working shell.

[0022] Further, the cloth bag, the skeleton assembly, the auxiliary assembly, the power assembly and the connecting assembly are component parts of a filtering mechanism, a fixed circular hole is formed in the top end of the support plate, the filtering mechanism is fixedly sleeved in the fixed circular hole of the support plate, the number of the filtering mechanism is several, and the several filtering mechanisms are arrayed.

[0023] Further, the ash cleaning mechanism is arranged on the upper part of the shell mechanism, and the ash cleaning mechanism comprises:

[0024] The pulse air pump is arranged on one side of the top end of the working shell.

[0025] The pulse pipe is fixedly communicated with the pulse air pump at one end, and the other end of the pulse pipe penetrates through the side wall of the working shell and is fixedly arranged above the support plate, and the number of the pulse pipes is equal to the longitudinal number of the filtering mechanisms.

[0026] The pulse nozzle is fixedly communicated with the pulse pipe at the bottom end, and the pulse nozzle is arranged above the filtering mechanism, and the number of the pulse nozzles on one pulse pipe is equal to the transverse number of the filtering mechanisms.

[0027] Further, the skeleton assembly comprises:

[0028] The top ring is fixedly connected with the top end of the support plate at the bottom end, and the top ring is arranged above the open end of the cloth bag, and the top ring is a circular ring.

[0029] The bottom plate is arranged below the top ring, and the bottom plate is arranged inside the closed end of the cloth bag, and the bottom plate is a circular plate.

[0030] A plurality of ring plates are arranged between the top ring and the bottom plate, the top end of the uppermost ring plate is fixedly connected with the bottom end of the top ring, and the bottom end of the lowermost ring plate is fixedly connected with the top end of the bottom plate, the top ring is concentric with the fixed circular hole, and the bottom plate and the ring plate are concentric with the top ring.

[0031] The straight rod is fixedly connected between the two ring plates, and the straight rod is close to the inner wall of the cloth bag, and the number of the straight rods is eight, and the eight skeleton assemblies are evenly arranged around the ring plate.

[0032] Further, the auxiliary assembly further comprises:

[0033] The auxiliary pipe is funnel-shaped with the upper part being wide and the lower part being narrow, and the auxiliary pipe is concentric with the pulse nozzle, the upper end of the auxiliary pipe is fixedly connected with the top ring, and the lower end of the auxiliary pipe is movably sleeved with the ring plate.

[0034] The bottom end of the auxiliary part is in contact with the bottom plate.

[0035] Further, the power assembly comprises:

[0036] The flow divider is fixedly connected with the top end of the bottom plate, and the flow divider is circular table-shaped.

[0037] The application can make the jet gas flow escape along the side wall of the flow distribution piece, strengthen the dust cleaning effect on the lower part of the cloth bag, prevent excessive impact on the bottom end of the cloth bag, make the connection between the cloth bag and the framework assembly more stable, further enhance the sealing between the auxiliary component and the bottom plate, and reduce the probability of dust-containing flue gas discharge after the cloth bag is damaged.

[0038] The rotating motor is embedded in the inside of the flow distribution piece.

[0039] The rotating part passes through the bottom end of the flow distribution piece and is movably connected with the rotating motor, the inside of the bottom plate is provided with a rotating cavity, and the other end of the rotating part is movably arranged in the rotating cavity.

[0040] Further, the number of the connecting assemblies is four, and the four connecting assemblies are uniformly arranged around the auxiliary assembly, and the connecting assembly comprises:

[0041] The one end of the connecting rope is fixedly connected with the outer wall of the auxiliary pipe, and the other end of the connecting rope passes through the bottom plate and is fixedly connected with the rotating part.

[0042] A plurality of connecting blocks are fixedly sleeved on the connecting rope above the bottom plate, one side of the connecting block is fixedly connected with the auxiliary component, the two connecting blocks are connected through a return spring, and the return spring is sleeved outside the connecting rope.

[0043] Further, the filtering mechanism further comprises a fixing assembly, the fixing assembly is fixedly sleeved outside the cloth bag, and the fixing assembly comprises:

[0044] The outer side of the ring plate is provided with a ring groove, and the cloth bag is movably clamped on the ring groove through the clamp.

[0045] Two clamps are arranged in one fixing assembly, the two clamps are fixedly connected through a bolt, and the number of the fixing assemblies is equal to the number of the ring plates.

[0046] The framework assembly is sleeved inside the cloth bag, the cloth bag is supported by the top ring, the bottom plate, the ring plate and the straight rod, the fixing assembly is sleeved outside the cloth bag, and the clamp is fixedly clamped on the ring plate, so that the side wall of the cloth bag is limited in multiple stages, the stability of the cloth bag during filtering and dust cleaning is enhanced, the cloth bag is prevented from being damaged due to excessive deformation of the side wall during work, and the service life of the cloth bag is effectively improved.

[0047] Further, the filtering mechanism further comprises a vibrating assembly, the vibrating assembly is arranged in the ring plate and the straight rod, and the vibrating assembly comprises:

[0048] A ring pipe is fixedly sleeved on the outer side of a group of ring plates, and the outer wall of the ring pipe is in contact with the inner wall of the cloth bag.

[0049] The telescopic bag is internally connected with a reset spring, and the inside of the telescopic bag is filled with gas.

[0050] The connecting pipe is fixedly communicated with the telescopic bag below the ring pipe.

[0051] The movable piece is composed of a movable plate and a movable rod, one side of the movable plate is fixedly connected with one side of the telescopic bag, and the other side of the movable plate is in contact with the connecting block, one end of the movable rod is movably sleeved with the ring plate, and the other end of the movable rod is fixedly connected with the movable plate and penetrates through the telescopic bag.

[0052] The application sets the vibration assembly in the ring plate and the straight rod above the ring plate, and the vibration assembly is composed of the ring pipe, the connecting pipe, the telescopic bag and the movable piece, when the auxiliary piece moves, the connecting block on the side wall of the auxiliary piece intermittently extrudes the telescopic bag and the movable piece, so that the ring pipe communicated with the connecting pipe intermittently expands, the cloth bag outside the auxiliary piece is vibrated, the dust removal effect of the side wall of the cloth bag outside the auxiliary piece is effectively ensured, and the uniform dust removal of the whole cloth bag is realized by cooperating with the use of the auxiliary assembly.

[0053] The application has the following beneficial effects:

[0054] The dust remover for treating sodium sulfide calcination flue gas provided by the application is internally provided with an auxiliary assembly, a power assembly and a connecting assembly, the auxiliary assembly is composed of an auxiliary pipe and an auxiliary piece, part of the connecting assembly is connected with the auxiliary assembly, and the other part of the connecting assembly is connected with the power assembly, when the dust removal mechanism performs the dust removal operation on the cloth bag, firstly, the shape design of the auxiliary pipe is utilized, so that the flow rate of the gas is suddenly increased when the gas passes through the auxiliary pipe, and a negative pressure area is formed in the auxiliary pipe by the high-speed airflow, so that the surrounding clean air is sucked, so that the airflow multiplication effect is achieved, secondly, the power assembly is rotated to perform the winding and unwinding operation on the connecting assembly, the length of the auxiliary piece is dynamically controlled, so that the amount of airflow escaping outward is reduced, the loss in the downward movement of the airflow is reduced, the airflow sprayed from the auxiliary piece can fully remove the dust on the cloth bag, the dust removal on the lower part of the cloth bag is improved, the uniform dust removal effect of the upper and lower parts of the cloth bag is realized, the filtering efficiency of the dust remover is effectively improved, and the service life of the cloth bag is effectively prolonged.

[0055] Generally, if a filter bag is damaged, the machine will stop to prevent the continued flow of dust-laden flue gas. However, due to the inertia of gas flow, some dust particles may enter the filter bag or even leak into the external environment, increasing the risk of air pollution. This application solves this problem by setting auxiliary components, power components, and connecting components inside the frame assembly. When the differential pressure feedback mechanism detects a damaged filter bag, the power component is used to wind up the connecting component and pull down the auxiliary component, so that the bottom end of the auxiliary component is effectively and tightly fitted to the top end of the base plate, thereby sealing the filter bag. This effectively solves the problem of the inability to deal with the damage of the filter bag in time, which affects the dust removal effect and achieves the purpose of environmental protection. Attached Figure Description

[0056] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort:

[0057] Figure 1 This is a three-dimensional structural diagram of the entire invention;

[0058] Figure 2 This is a cross-sectional three-dimensional structural diagram of the entire invention;

[0059] Figure 3 In this invention Figure 2 Enlarged structural diagram at point A;

[0060] Figure 4 In this invention Figure 2 Enlarged structural diagram at point B;

[0061] Figure 5 In this invention Figure 2 Enlarged structural diagram at point C;

[0062] Figure 6 This is a three-dimensional structural diagram of the support plate, dust removal mechanism, and filtration mechanism in this invention;

[0063] Figure 7 This is a three-dimensional structural diagram of the filtration mechanism in this invention;

[0064] Figure 8 This is a partial top-view perspective view of the filter mechanism located in the middle of the straight rod in this invention.

[0065] Figure 9 This is a partial top-view perspective view of the filter mechanism located in the middle of the ring plate in this invention.

[0066] Figure 10 This is a three-dimensional structural diagram of the cloth bag and fixing components in this invention;

[0067] Figure 11 Figure 1 is a perspective view of a fixing assembly in the present application;

[0068] Figure 12 Figure 2 is a perspective view of a skeleton assembly in the present application;

[0069] Figure 13 Figure 3 is a perspective view of an auxiliary assembly, a power assembly and a connecting assembly in the present application;

[0070] Figure 14 Figure 4 is a sectional perspective view of the auxiliary assembly, the power assembly and the connecting assembly in the present application;

[0071] Figure 15 Figure 5 is a perspective view of a ring plate, a straight rod and a vibrating assembly in the present application;

[0072] Figure 16 Figure 6 is a perspective view of the vibrating assembly in the present application;

[0073] Figure 17 Figure 7 is an enlarged view of D in Figure 6. Figure 16

[0074] In the figure: 1, housing mechanism; 11, working housing; 12, repair plate; 13, cleaning plate; 14, air inlet pipe; 15, air outlet pipe; 16, isolation plate; 17, support plate; 2, dust removal mechanism; 21, pulse air pump; 22, pulse pipe; 23, pulse nozzle; 3, filtering mechanism; 31, cloth bag; 4, skeleton assembly; 41, top ring; 42, bottom plate; 43, ring plate; 44, straight rod; 5, fixing assembly; 51, clamp; 52, bolt; 6, auxiliary assembly; 61, auxiliary pipe; 62, auxiliary piece; 7, power assembly; 71, flow divider; 72, rotary motor; 73, rotary piece; 8, connecting assembly; 81, connecting rope; 82, connecting block; 9, vibrating assembly; 91, ring pipe; 92, connecting pipe; 93, stretchable bag; 94, movable piece; 941, movable plate; 942, movable rod. DETAILED DESCRIPTION

[0075] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0076] Embodiment one: a dust remover for treating calcined flue gas of sodium sulfide prepared by sodium sulfate, comprising a working housing 11, such as Figures 1-3 ​The inside of the working shell 11 is composed of a working cavity and an ash collecting cavity, and the working cavity is located above the ash collecting cavity. During working, the working cavity filters dust particles in flue gas, and then the dust particles fall into the ash collecting cavity for subsequent discharge. The top end of the working shell 11 is fixedly connected with the repair plate 12 through bolts, and the repair plate 12 is detachable for maintenance of the dust cleaning mechanism 2, the filtering mechanism 3 and the like located inside the working shell 11. The bottom end of the working shell 11 is fixedly connected with the cleaning plate 13 through bolts, and the cleaning plate 13 is detachable for regular cleaning of dust impurities located inside the working shell 11. The middle part of one side of the working shell 11 is fixedly communicated with the air inlet pipe 14 for passing flue gas containing dust into the working cavity of the working shell 11. The top end of the other side of the working shell 11 is fixedly communicated with the air outlet pipe 15 for discharging clean flue gas out of the working shell 11. The working cavity of the working shell 11 is fixedly sleeved with the isolation plate 16 at one side, and the isolation plate 16 is opposite to the air inlet pipe 14 in position. The isolation plate 16 can block flue gas just entering the working shell 11 to make it downwardly discharge so as to uniformly discharge flue gas to filtering mechanisms 3 at various positions, avoiding that filtering mechanisms 3 close to the air inlet pipe 14 work excessively and filtering mechanisms 3 far away from the air inlet pipe 14 do not work. The working cavity of the working shell 11 is fixedly sleeved with the support plate 17 at the top end. The support plate 17 can provide space conditions for stably installing filtering mechanisms 3 and separate flue gas containing dust from clean flue gas, so that the moving path of flue gas can be effectively planned by the air inlet pipe 14, the air outlet pipe 15, the isolation plate 16 and the support plate 17, flue gas can be effectively filtered and discharged, environmental protection is realized, and atmospheric pollution is avoided. In summary, the working shell 11, the repair plate 12, the cleaning plate 13, the air inlet pipe 14, the air outlet pipe 15, the isolation plate 16 and the support plate 17 jointly constitute the shell mechanism 1 to provide space for dust-containing flue gas purification.

[0077] As Figures 1-3 , the upper part of the shell mechanism 1 is provided with the dust cleaning mechanism 2 for dust cleaning operation of the filtering mechanism 3. The dust cleaning mechanism 2 comprises a pulse air pump 21, a pulse pipe 22 and a pulse spray head 23. As Figure 6 , the pulse air pump 21 is fixedly placed at the top end of one side of the working shell 11. One end of the pulse pipe 22 is fixedly communicated with the pulse air pump 21. The other end of the pulse pipe 22 penetrates through the side wall of the working shell 11 and is fixedly arranged above the support plate 17. The number of the pulse pipe 22 is equal to the longitudinal number of the filtering mechanism 3. The bottom end of the pulse pipe 22 is fixedly communicated with the top end of the pulse spray head 23, and the pulse spray head 23 is located above the filtering mechanism 3. The number of the pulse spray head 23 on one pulse pipe 22 is equal to the transverse number of the filtering mechanism 3. The pulse air pump 21 works, and air flow can be intermittently injected into the filtering mechanism 3 through the pulse pipe 22 and the pulse spray head 23 to clean dust particles adhered to the outside of the cloth bag 31.

[0078] As Figures 1-7The top end of the support plate 17 is provided with a fixed circular hole, and the filter mechanism 3 is fixedly sleeved in the fixed circular hole of the support plate 17. The number of filter mechanisms 3 is several, and the several filter mechanisms 3 are arrayed. The filter mechanism 3 can uniformly and sufficiently filter the flue gas distributed to each area. In addition, a differential pressure feedback mechanism is arranged near the filter mechanism 3. When the differential pressure changes, the specific situation of the filter mechanism 3 can be detected. For example, if the differential pressure slowly rises, the dust layer of the cloth bag 31 is normally thickened. When the differential pressure reaches the set value, the dust cleaning mechanism 2 is started to blow the airflow to realize dust cleaning. If the differential pressure rises sharply, the cloth bag 31 is broken, and the dust cleaning mechanism 2 and the filter mechanism 3 should be detected. If the differential pressure is low, the cloth bag 31 is damaged, and the machine should be stopped to check the leakage. Specifically:

[0079] As Figure 2 , Figure 10 The cloth bag 31 is a long column with one open end, and the cloth bag 31 is made of wear-resistant and high-temperature-resistant materials.

[0080] As Figures 2-5 , Figure 12 , Figure 15 The inside of the cloth bag 31 movably sleeves a skeleton assembly 4 for supporting the cloth bag 31 to avoid excessive contraction of the cloth bag 31 and affect the filtering effect of the dust-containing flue gas. The skeleton assembly 4 includes a top ring 41, a bottom plate 42, a ring plate 43, and a straight rod 44. The bottom end of the top ring 41 is fixedly connected with the top end of the support plate 17, and the top ring 41 is arranged above the open end of the cloth bag 31. The top ring 41 is a circular ring. The bottom plate 42 is arranged below the top ring 41 and inside the closed end of the cloth bag 31, i.e. the bottom plate 42 is arranged at the inside bottom end of the cloth bag 31. The bottom plate 42 is a circular plate. The solid design of the bottom plate 42 prevents the smoke dust gas from entering from the bottom end of the cloth bag 31, and the bottom end of the cloth bag 31 does not need to be cleaned. A plurality of ring plates 43 are arranged between the top ring 41 and the bottom plate 42. The top end of the uppermost ring plate 43 is fixedly connected with the bottom end of the top ring 41, and the bottom end of the lowermost ring plate 43 is fixedly connected with the top end of the bottom plate 42. The top ring 41 and the fixed circular hole are concentric, and the bottom plate 42 and the ring plate 43 are concentric with the top ring 41. The top ring 41 is used as a reference point, and the bottom plate 42 and the ring plate 43 are aligned. The skeleton assembly 4 is arranged concentrically with the fixed circular hole. The straight rod 44 is fixedly connected between two ring plates 43 and close to the inner wall of the cloth bag 31. The number of straight rods 44 is eight, and the eight skeleton assemblies 4 are evenly arranged around the ring plate 43. The top ring 41, the bottom plate 42, the ring plate 43, and the straight rod 44 can support the cloth bag 31, effectively limit the shape of the cloth bag 31, and ensure the stability of the cloth bag 31 during filtering and dust cleaning.

[0081] As Figures 2-5 , Figures 13-14The inner sleeve of the skeleton assembly 4 is sleeved with an auxiliary assembly 6 for enhancing the dust removal effect of the jet flow on the cloth bag 31. The auxiliary assembly 6 comprises an auxiliary pipe 61 and an auxiliary piece 62. The auxiliary pipe 61 is funnel-shaped with a wide upper end and a narrow lower end, and is concentric with the pulse jet head 23. The shape of the auxiliary pipe 61 is designed to make the flow rate of the gas jetted out of the pulse jet head 23 increase suddenly when the gas passes through the auxiliary pipe 61, and the high-speed airflow forms a negative pressure area in the auxiliary pipe 61 to suck clean air around, thereby achieving the effect of airflow multiplication. The upper end of the auxiliary pipe 61 is fixedly connected with the top ring 41, and the lower end of the auxiliary pipe 61 is movably sleeved with the ring plate 43. The connection design of the auxiliary pipe 61 effectively enhances the stability of the auxiliary pipe 61 arranged in the skeleton assembly 4. The bottom end of the auxiliary pipe 61 is fixedly connected with the top end of the auxiliary piece 62, and the bottom end of the auxiliary piece 62 is in contact with the bottom plate 42, that is, the length of the auxiliary piece 62 is effectively limited. The shortest length of the auxiliary piece 62 should be the distance between the bottom end of the auxiliary pipe 61 and the top end of the bottom plate 42. According to actual use requirements, the auxiliary piece 62 is made of wear-resistant, high-temperature-resistant, foldable and air-tight material.

[0082] As Figures 2-5 , Figures 13-14 The bottom end of the skeleton assembly 4 is provided with a power assembly 7 for providing power for the adjusting and connecting assembly 8. The power assembly 7 comprises a flow dividing piece 71, a rotary motor 72 and a rotating piece 73. The top end of the bottom plate 42 is fixedly connected with the flow dividing piece 71 which is circular truncated cone-shaped and can make the jet flow escape outward along the side wall of the flow dividing piece 71, thereby enhancing the dust removal effect on the lower part of the cloth bag 31, preventing excessive impact on the bottom end of the cloth bag 31, making the connection between the cloth bag 31 and the skeleton assembly 4 more stable, further enhancing the air tightness between the auxiliary piece 62 and the bottom plate 42, and reducing the probability of the cloth bag 31 breaking and the dust-containing flue gas discharging from the shell mechanism 1. The rotary motor 72 is embedded in the flow dividing piece 71, and one end of the rotating piece 73 penetrates through the bottom end of the flow dividing piece 71 and is movably connected with the rotary motor 72. The bottom plate 42 is internally provided with a rotating cavity, and the other end of the rotating piece 73 is movably arranged in the rotating cavity. The rotary motor 72 can make the rotating piece 73 rotate forward or reversely.

[0083] As Figures 2-5 , Figures 15-17One end of the connecting component 8 is connected to the auxiliary component 6, and the other end of the connecting component 8 is connected to the power component 7. It is used to adjust the length of the auxiliary component 62. There are four connecting components 8, which are evenly arranged around the auxiliary component 6. They are used to pull the auxiliary component 62 to extend and retract, so as to achieve different functions at different stages. The connecting component 8 includes a connecting rope 81 and a connecting block 82. One end of the connecting rope 81 is fixedly connected to the outer wall of the auxiliary tube 61, and the other end of the connecting rope 81 passes through the base plate 42 and is fixedly connected to the rotating component 73. When the rotating component 73 rotates in the forward direction, the rotating component 73 will wind up the connecting rope 81. When the rotating component 73 rotates in the reverse direction, the rotating component 73 will unwind the connecting rope 81. Several connecting blocks 82 are fixedly sleeved on the connecting rope 81 located above the base plate 42, and one side of the connecting block 82 is connected to the auxiliary component 62. The auxiliary component 62 is fixedly connected, and the two connecting blocks 82 are connected by a return spring. The return spring is sleeved on the outside of the connecting rope 81. When the connecting rope 81 is unwound, the auxiliary component 62 can be folded under the tension of the return spring. When the connecting rope 81 is wound up, the auxiliary component 62 is stretched over the tension of the return spring. Therefore, the power component 7 controls the length of the connecting component 8 to be wound up and down, thereby dynamically adjusting the length of the auxiliary component 62 to reduce the amount of airflow escaping outward and reduce the loss during the downward movement of airflow. Thus, the length of the auxiliary component 62 can be continuously adjusted during the dust removal process to fully clean the walls of the filter bags 31 at different heights, achieving a uniform dust removal effect on the upper and lower parts of the filter bags 31. This not only effectively improves the filtration efficiency of the dust collector but also effectively extends the service life of the filter bags 31.

[0084] By utilizing the design of the auxiliary pipe 61, the flow rate of the gas increases sharply when it passes through the auxiliary pipe 61. Then, by using the power component 7 and the connecting component 8 to dynamically adjust the length of the auxiliary component 62, the amount of airflow escaping outward is reduced, so as to achieve a uniform dust removal effect on the upper and lower parts of the filter bag 31.

[0085] Example 2, based on Example 1, such as Figures 2-5 , Figures 10-11 The filter mechanism 3 also includes a fixing component 5, which is fixedly sleeved on the outside of the filter bag 31 for fastening the filter bag 31. The fixing component 5 includes clamps 51 and bolts 52. The outer side of the ring plate 43 is provided with an annular groove, and the clamps 51 movably clamp the filter bag 31 into the annular groove, effectively enhancing the stability of the filter bag 31. Two clamps 51 are provided in one fixing component 5, and the two clamps 51 are fixedly connected by bolts 52. The number of fixing components 5 is equal to the number of ring plates 43, so that the side wall of the filter bag 31 is restricted in multiple stages, enhancing the stability of the filter bag 31 when performing filtration and dust removal work, preventing the side wall of the filter bag 31 from being damaged due to excessive deformation during operation, and effectively improving the service life of the filter bag 31.

[0086] In Example 3, based on Example 2, the filter mechanism 3 further includes a vibration component 9, such as...Figures 2-5 、 Figures 8-9 、 Figures 15-17 , the vibration assembly 9 is arranged in the ring plate 43 and the straight rod 44, the vibration assembly 9 is used for enhancing the dust removal effect on the cloth bag 31, the vibration assembly 9 comprises a ring pipe 91, a connecting pipe 92, an elastic bag 93 and a movable piece 94, the outer side of a group of ring plates 43 is fixedly sleeved with the ring pipe 91, the outer wall of the ring pipe 91 is in contact with the inner wall of the cloth bag 31, the ring pipe 91 can be slightly expanded and provide conditions for vibrating the cloth bag 31, the side wall of the ring plate 43, which is not the uppermost, is provided with a vertical slot, the connecting block 82 can pass through the vertical slot, the inner wall of the vertical slot is fixedly connected with the elastic bag 93, the inside of the elastic bag 93 is connected with a reset spring, and the inside of the elastic bag 93 is filled with gas, when the elastic bag 93 is extruded, the reset spring is compressed, and the gas in it is transferred, when the elastic bag 93 is not extruded, it is in the original expansion state under the action of the reset spring, so that the gas returns to the elastic bag 93, one end of the connecting pipe 92 is fixedly communicated with the ring pipe 91, and the other end of the connecting pipe 92 is fixedly communicated with the elastic bag 93 located below the ring pipe 91, the gas can be transferred in the elastic bag 93 and the ring pipe 91 according to the extrusion condition of the elastic bag 93, and then the ring pipe 91 is intermittently expanded to vibrate the cloth bag 31 located outside the auxiliary piece 62, so that the dust removal effect of the side wall of the cloth bag 31 located outside the auxiliary piece 62 is effectively ensured, the movable piece 94 is composed of a movable plate 941 and a movable rod 942, one side of the movable plate 941 is fixedly connected with one side of the elastic bag 93, the other side of the movable plate 941 abuts against the connecting block 82, one end of the movable rod 942 is movably sleeved with the ring plate 43, and the other end of the movable rod 942 passes through the elastic bag 93 and is fixedly connected with the movable plate 941, when the connecting block 82 passes through the vertical slot, a pushing force can be applied to the movable piece 94, so that the elastic bag 93 can be stably pushed to deform laterally, so that the ring pipe 91 vibrates the cloth bag 31 to shake off dust particles.

[0087] The working principle of the use method of the present application is as follows:

[0088] When the filtering mechanism 3 is assembled, first, the auxiliary assembly 6, the power assembly 7 and the connecting assembly 8 are stably installed in the framework assembly 4, then the cloth bag 31 is sleeved outside the framework assembly 4, and the cloth bag 31 is fixed by the fixing assembly 5 in multiple stages, so that the stability of the cloth bag 31 during filtering and dust removal is enhanced, and finally the filtering mechanism 3 is installed on the fixed circular hole of the supporting plate 17.

[0089] When the shell mechanism 1 works, the inlet pipe 14 introduces dust-containing flue gas, the flue gas is blocked by the isolation plate 16 and then discharged to the filtering mechanism 3, the dust particles in the flue gas are intercepted by the cloth bag 31, so that the clean gas passes above the supporting plate 17 and then is discharged through the outlet pipe 15, and the dust particles are accumulated outside the cloth bag 31.

[0090] When the dust particles accumulated on the cloth bag 31 are more, the pulse air pump 21 is started, and the intermittent air flow is sprayed on the filtering mechanism 3 through the pulse pipe 22 and the pulse nozzle 23, the cloth bag 31 is shaken to shake off the dust particles accumulated on the cloth bag 31, in this process, the shape of the auxiliary pipe 61 is designed, so that the gas flow rate increases suddenly when passing through the auxiliary pipe 61, and the high-speed airflow forms a negative pressure area in the auxiliary pipe 61 to suck the surrounding clean air, thereby achieving the effect of air flow multiplication, at the same time, the rotating motor 72 drives the rotating part 73 to rotate forward, so that the connecting rope 81 is slowly wound, thereby driving the auxiliary part 62 connected with the connecting block 82 to stretch downward, until the bottom end of the auxiliary part 62 moves above the lowermost ring plate 43, then the rotating motor 72 drives the rotating part 73 to rotate reversely, so that the connecting rope 81 is slowly unwound, thereby driving the auxiliary part 62 connected with the connecting block 82 to fold downward, until the bottom end of the auxiliary part 62 moves below the uppermost ring plate 43, so as to reciprocate, dynamically control the length of the auxiliary part 62, in the case of reducing the amount of air flow escaping outward and reducing the loss of air flow moving downward, the air flow sprayed from the auxiliary part 62 can fully clean the side wall of the cloth bag 31, so as to improve the full cleaning of the lower part of the cloth bag 31, realize the uniform cleaning effect of the upper and lower parts of the cloth bag 31, not only effectively improve the filtering efficiency of the dust collector, but also effectively prolong the service life of the cloth bag 31.

[0091] In the process of stretching and retracting the auxiliary part 62 by the connecting rope 81 and the connecting block 82, the connecting block 82 will continuously pass through the vertical slot of the ring plate 43, thereby exerting extrusion force on the movable part 94 in the vertical slot and compressing the expansion capsule 93, so that the gas in the expansion capsule 93 is transferred to the ring pipe 91 through the connecting pipe 92, thereby making the ring pipe 91 instantaneously expand to vibrate the cloth bag 31 located outside the auxiliary part 62, so as to reciprocate, effectively guarantee the cleaning effect of the side wall of the cloth bag 31 located outside the auxiliary part 62, and further improve the uniform cleaning effect of the upper and lower parts of the cloth bag 31.

[0092] If the pressure difference feedback mechanism detects that the cloth bag 31 is damaged, first, the shell mechanism 1 is stopped, and then the rotating motor 72 is quickly rotated forward to pull down the auxiliary part 62 until the bottom end of the auxiliary part 62 is tightly attached to the top end of the bottom plate 42, thereby sealing the cloth bag 31, effectively solving the problem that the dust removal effect is affected when the cloth bag 31 is damaged and cannot be processed in time, achieving the purpose of environmental protection.

[0093] The foregoing description of the disclosed embodiments enables a person skilled in the art to make or use the application. Modifications of these embodiments will occur to persons of skill in the art, and that the appended claims are intended to cover all such modifications that do not depart from the true spirit and scope of the application. Therefore, the application is not limited to the embodiments shown but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A dust collector for treating flue gas from the calcination of sodium sulfate to sodium sulfide, characterized in that, include: Cloth bag (31), the cloth bag (31) is a long column with one end open; The skeleton assembly (4) is movably sleeved inside the bag (31). The skeleton assembly (4) includes a top ring (41), a bottom plate (42), ring plates (43) and a straight rod (44). Several ring plates (43) are arranged between the top ring (41) and the bottom plate (42). The top end of the uppermost ring plate (43) is fixedly connected to the bottom end of the top ring (41), and the bottom end of the lowermost ring plate (43) is fixedly connected to the top end of the bottom plate (42). Auxiliary component (6), the skeleton component (4) is fitted with auxiliary component (6), the auxiliary component (6) includes auxiliary tube (61) and auxiliary part (62), and the bottom end of auxiliary tube (61) is fixedly connected to the top end of auxiliary part (62); The power assembly (7) is provided at the bottom of the frame assembly (4). The power assembly (7) includes a diverter (71), a rotary motor (72) and a rotating component (73). The diverter (71) is fixedly connected to the top center of the base plate (42). The rotary motor (72) is embedded inside the diverter (71). One end of the rotating component (73) passes through the bottom end of the diverter (71) and is movably connected to the rotary motor (72). A rotating cavity is opened inside the base plate (42), and the other end of the rotating component (73) is movably disposed in the rotating cavity. A connecting component (8) is provided, one end of which is connected to an auxiliary component (6) and the other end of which is connected to a power component (7). The connecting component (8) includes a connecting rope (81) and a connecting block (82). One end of the connecting rope (81) is fixedly connected to the outer wall of the auxiliary tube (61), and the other end of the connecting rope (81) passes through the base plate (42) and is fixedly connected to the rotating component (73). Several connecting blocks (82) are fixedly sleeved on the connecting rope (81) located above the base plate (42), and one side of the connecting block (82) is fixedly connected to the auxiliary component (62). Two connecting blocks (82) are connected by a return spring, and the return spring is sleeved on the outside of the connecting rope (81). By utilizing the design of the auxiliary pipe (61), the flow rate of the gas increases sharply when it passes through the auxiliary pipe (61). Then, by using the power component (7) and the connecting component (8) to dynamically adjust the length of the auxiliary component (62), the amount of airflow escaping outward is reduced, so as to achieve a uniform dust removal effect on the upper and lower parts of the cloth bag (31).

2. The dust collector for treating flue gas from the preparation of sodium sulfide from sodium sulfate according to claim 1, characterized in that, It also includes a housing mechanism (1), which comprises: The working housing (11) is composed of a working chamber and a dust collection chamber, with the working chamber located above the dust collection chamber; Repair plate (12), the top end of the working housing (11) is fixedly connected to the repair plate (12) by bolts; The bottom end of the working housing (11) is fixedly connected to the cleaning plate (13) by bolts; The intake pipe (14) is fixedly connected to the middle part of one side of the working housing (11); The exhaust pipe (15) is fixedly connected to the top of the other side of the working housing (11); Isolation plate (16): Isolation plate (16) is fixedly sleeved on one side of the working cavity of the working housing (11), and the isolation plate (16) is opposite to the air inlet pipe (14); Support plate (17) is fixedly sleeved on the top of the working cavity of the working housing (11).

3. The dust collector for treating flue gas from the preparation of sodium sulfate and sodium sulfide according to claim 2, characterized in that, The cloth bag (31), skeleton assembly (4), auxiliary assembly (6), power assembly (7) and connecting assembly (8) are components of the filter mechanism (3). The top of the support plate (17) is provided with a fixed round hole, and the filter mechanism (3) is fixedly fitted in the fixed round hole of the support plate (17). The number of filter mechanisms (3) is several, and several filter mechanisms (3) are arranged in an array.

4. The dust collector for treating flue gas from the preparation of sodium sulfate and sodium sulfide according to claim 3, characterized in that, It also includes a dust removal mechanism (2), wherein the upper part of the housing mechanism (1) is provided with the dust removal mechanism (2), and the dust removal mechanism (2) includes: A pulse air pump (21) is fixedly placed on one side of the top of the working housing (11). Pulse tube (22), one end of which is fixedly connected to pulse air pump (21), and the other end of which passes through the side wall of working housing (11) and is fixedly installed above support plate (17). The number of pulse tubes (22) is equal to the longitudinal number of filter mechanism (3). The pulse nozzle (23) is fixedly connected to the top of the pulse tube (22) and the pulse nozzle (23) is located above the filter mechanism (3). The number of pulse nozzles (23) on one pulse tube (22) is equal to the number of pulse nozzles (23) in the filter mechanism (3) in the lateral direction.

5. The dust collector for treating flue gas from the preparation of sodium sulfate and sodium sulfide according to claim 4, characterized in that, The skeleton component (4) also includes: The bottom end of the top ring (41) is fixedly connected to the top end of the support plate (17), and the top ring (41) is set above the opening end of the cloth bag (31). The top ring (41) is circular. A bottom plate (42) is provided below the top ring (41), and the bottom plate (42) is located inside the closed end of the cloth bag (31). The bottom plate (42) is circular. The top ring (41) is concentric with the fixed circular hole, and the bottom plate (42), the ring plate (43) and the top ring (41) are concentric; A straight rod (44) is fixedly connected between the two ring plates (43), and the straight rod (44) is close to the inner wall of the cloth bag (31). There are eight straight rods (44), and eight skeleton components (4) are evenly arranged around the ring plates (43).

6. The dust collector for treating flue gas from the preparation of sodium sulfide from sodium sulfate according to claim 5, characterized in that, The auxiliary component (6) also includes: The auxiliary tube (61) is funnel-shaped with a wider top and a narrower bottom, and the auxiliary tube (61) is concentric with the pulse nozzle (23). The upper end of the auxiliary tube (61) is fixedly connected to the top ring (41), and the lower end of the auxiliary tube (61) is movably connected to the ring plate (43). The bottom end of the auxiliary component (62) will contact the base plate (42).

7. The dust collector for treating flue gas from the preparation of sodium sulfide from sodium sulfate according to claim 6, characterized in that, The power assembly (7) also includes: The diverter (71) is frustum-shaped.

8. The dust collector for treating flue gas from the preparation of sodium sulfide from sodium sulfate according to claim 7, characterized in that, The number of the connecting components (8) is four, and the four surrounding auxiliary components (6) are evenly arranged.

9. The dust collector for treating flue gas from the preparation of sodium sulfate and sodium sulfide according to claim 8, characterized in that, The filtration mechanism (3) further includes a fixing component (5), which is fixedly fitted onto the outside of the cloth bag (31). The fixing component (5) includes: The clamp (51) has an annular groove on the outer side of the ring plate (43), and the clamp (51) secures the cloth bag (31) to the annular groove. Bolt (52), two clamps (51) are provided in one of the fixing components (5), and the two clamps (51) are fixedly connected by bolt (52). The number of fixing components (5) is equal to the number of ring plates (43).

10. The dust collector for treating flue gas from the preparation of sodium sulfide from sodium sulfate according to claim 9, characterized in that, The filtration mechanism (3) further includes a vibration assembly (9), which is disposed within the ring plate (43) and the straight rod (44). The vibration assembly (9) includes: A ring tube (91) is fixedly sleeved on the outer side of a set of ring plates (43), and the outer wall of the ring tube (91) is in contact with the inner wall of the cloth bag (31). The telescopic bladder (93) has a vertical groove on the side wall of the ring plate (43) that is not at the top, and the connecting block (82) can pass through the vertical groove. The telescopic bladder (93) is fixedly connected to the inner wall of the vertical groove. The telescopic bladder (93) is connected to a return spring inside, and the telescopic bladder (93) is filled with gas. A connecting tube (92) is fixedly connected at one end to a ring tube (91), and the other end of the connecting tube (92) is fixedly connected to a telescopic bladder (93) located below the ring tube (91); The movable component (94) consists of a movable plate (941) and a movable rod (942). One side of the movable plate (941) is fixedly connected to one side of the telescopic bladder (93), and the other side of the movable plate (941) will abut against the connecting block (82). One end of the movable rod (942) is movably sleeved with the ring plate (43), and the other end of the movable rod (942) passes through the telescopic bladder (93) and is fixedly connected to the movable plate (941).

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