Carbon black spiral feeding device for receiving flying dust materials

Abstract

The invention relates to the technical field of material conveying, in particular to a carbon black spiral feeding device for receiving flying dust materials. The carbon black spiral feeding device comprises a material storage tank and a material conveying pipe arranged at the bottom of the material storage tank, a cover plate used for sealing is arranged at the top end of the material storage tank, the material conveying pipe is communicated with the bottom of the material storage tank, a spiral plate is arranged in the material conveying pipe, and an isolation mechanism is arranged in the material storage tank. The interior of the material storage tank is divided into two cavities, and air flow is guided to the two sides of the filter element from two directions, so that the pressure intensity in the filter element is greater than the pressure intensity of one filter surface, and the backwashing of the filter surfaces is realized. Moreover, through continuous rotation of the blocking mechanism, the air flow in the storage tank flows through the two filtering surfaces of the filter element in a successive intermittent manner, so that dust accumulation on the filtering surfaces of the filter element is avoided, the blocking speed of the filter element is slowed down, and the flushing frequency of compressed air for the filter element is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of material conveying, in particular to a carbon black spiral feeding device for receiving dusty materials. Background Art

[0002] Carbon black is a type of amorphous carbon, a light, loose and extremely fine black powder with a very large surface area. It is a black powdery substance formed by incomplete combustion or pyrolysis of hydrocarbons in the gas phase under strictly controlled process conditions. Its main component is carbon and contains small amounts of elements such as oxygen, hydrogen and sulfur.

[0003] Carbon black is in powder form. During the processing, the powdered carbon black is transported to the granulator by the feeding device, and granulation is completed by adding an appropriate amount of granulation premix water in the granulator. The feeding device is usually installed at the front end of the granulator (i.e. the feeding end), and the carbon black raw material is transported to the storage tank in the feeding device by positive pressure air delivery. Specifically, a feeding pipe is set up, one end of the feeding pipe is connected to the storage tank in the feeding device, and the other end is connected to the workshop where the carbon black is stored. The carbon black stored in the workshop is transported to the storage tank by using a fan. At this time, the feeding device can carry out the feeding operation.

[0004] Since carbon black is in powder form, the use of positive pressure air delivery will cause dust to be generated when the carbon black enters the storage tank (that is, part of the carbon black floats in the air under the action of the airflow). The current solution is usually to seal the storage tank and then set up a filter inside the storage tank. The filter intercepts the dust in the storage tank and discharges the air from the storage tank to the outside to avoid excessive air pressure in the storage tank. When the filter is clogged, a gas injection device is set inside the filter to transport compressed gas into the filter and use the pressure difference to clean the filter.

[0005] However, due to excessive dust generated by positive pressure air delivery, the filter will be blocked quickly, and the compressed gas has a high speed and pressure. Frequent impact on the filter will affect the life of the filter. Summary of the invention

[0006] The object of the present invention is to provide a carbon black spiral feeding device for receiving dusty materials to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, a carbon black spiral feeding device for receiving dusty materials is provided, comprising a storage tank and a feeding pipe arranged at the bottom of the storage tank, a cover plate for sealing is arranged at the top of the storage tank, the feeding pipe is connected with the bottom of the storage tank, a spiral plate is arranged in the feeding pipe, and an isolation mechanism is arranged inside the storage tank, the isolation mechanism is used to isolate the internal space of the storage tank, so that two chambers are formed inside the storage tank, and the two chambers can be connected or isolated through the isolation mechanism; The side wall of the storage tank is also provided with a first feed port communicating with one of the chambers, a second feed port communicating with the other chamber, and a flow guide filter pipe with a filter element arranged inside; one end of the flow guide filter pipe is communicated with one of the chambers, and the other end is communicated with the other chamber; the interior of the filter element is a hollow structure, and the filter element has two filter surfaces, and the two filter surfaces are arranged corresponding to the two chambers; and the flow guide filter pipe is provided with an exhaust port at a position corresponding to the internal space of the filter element; The isolation mechanism seals one of the chambers so that the airflow in the other chamber is filtered by one of the filter surfaces and then discharged through the exhaust port, and backwashes the other filter surface by using the pressure difference during the discharge process.

[0008] As a further improvement of the technical solution, the isolation mechanism includes a partition with a material drop opening, and a blocking mechanism rotatably arranged at the bottom of the partition, and the blocking mechanism blocks the material drop opening during rotation, so that a first chamber and a second chamber are formed inside the storage tank; wherein the first chamber is located above the partition, and the second chamber is located below the partition; The blocking mechanism comprises a shielding part, and when the blocking mechanism blocks the blanking opening, the shielding part seals the first feed opening or the second feed opening by rotating.

[0009] As a further improvement of the technical solution, the partition is composed of two symmetrical plates, a feed opening is reserved between the two plates, the two plates are located between the first feed opening and the second feed opening, and are fixedly connected to the cover plate; The outer circle of the plate body corresponds to the curvature of the inner wall of the storage tank, and a gap is reserved between the outer circle of the plate body and the inner wall of the storage tank to provide space for the setting of the blocking mechanism.

[0010] As a further improvement of the technical solution, the blocking mechanism includes a blocking plate rotatably arranged below the material drop opening, and a side ring fixedly arranged at the end of the blocking plate; The baffle plate is an "X"-shaped structure, and the top of the baffle plate fits the bottom of the partition; The side ring is located in a gap reserved between the plate body and the storage tank; The shielding portion includes a first air baffle plate fixedly arranged at the top end of the side ring, and a second air baffle plate fixedly arranged at the bottom end of the side ring, and the outer walls of the second air baffle plate and the first air baffle plate are both slidably fitted with the inner wall of the storage tank; The baffle plate blocks the material drop opening by rotating. After the baffle plate blocks the material drop opening, the first air baffle plate seals the first feed opening or the second air baffle plate seals the second feed opening.

[0011] As a further improvement of the technical solution, a rotating shaft is fixedly arranged at the top end of the material baffle plate, and the top end of the rotating shaft passes through the cover plate and is connected to a second motor arranged on the top of the cover plate.

[0012] As a further improvement of the technical solution, the baffle plate includes a first baffle plate and a second baffle plate, both of which have shapes corresponding to the blanking opening, and the first baffle plate and the second baffle plate are cross-arranged to form an "X"-shaped structure; The first air baffle plate is arranged corresponding to one end of the second material baffle plate, and the second air baffle plate is arranged corresponding to one end of the first material baffle plate; When the first baffle plate blocks the blanking opening, the first air baffle plate blocks the first feed opening, and when the second baffle plate blocks the blanking opening, the second air baffle plate blocks the second feed opening.

[0013] As a further improvement of the technical solution, the flow guide filtration pipeline includes an air pipe whose one end is connected to the first chamber and the other end is connected to the second chamber, and the exhaust port is arranged on one side of the air pipe; The position of the air pipe corresponding to the exhaust port is set as an installation cavity for installing the filter element, and the exhaust port is at the top of the installation cavity; a pressure relief valve is provided at the exhaust port to increase the pressure inside the filter element, thereby backwashing the first filter surface or the second filter surface under the action of the pressure difference.

[0014] As a further improvement of the technical solution, the shape of the installation cavity corresponds to the shape of the filter element, the filter element is a square tube, and the filter element is installed in the installation cavity through the exhaust port; The side of the filter element close to the gas in the first chamber forms a first filter surface for filtering the gas in the first chamber; the side of the filter element close to the gas in the second chamber forms a second filter surface for filtering the gas in the second chamber.

[0015] As a further improvement of the technical solution, the pressure relief valve is a pressure plate slidably arranged at the exhaust port, and a straight rod longitudinally slidably connected to the pressure plate is fixedly arranged at the position of the air pipe corresponding to the exhaust port. Under normal conditions, the pressure plate seals the exhaust port by covering the exhaust port, and uses its own gravity to block the gas entering the filter element, so as to increase the pressure inside the filter element; The pressure plate is provided with an air vent whose exhaust flow is smaller than the air delivery flow of the air pipe.

[0016] As a further improvement of the technical solution, the baffle plate cooperates with the partition during rotation to intercept the carbon black on the top of the partition, so that the intercepted carbon black falls off after accumulation.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. In the carbon black spiral feeding device for receiving dusty materials, the interior of the storage tank is divided into two chambers, and the airflow is guided to the two sides of the filter element from two directions, so that the pressure inside the filter element is greater than the pressure at one of the filter surfaces, thereby realizing backwashing of the filter surface. In addition, through the continuous rotation of the blocking mechanism, the airflow in the storage tank flows through the two filter surfaces of the filter element in a sequential and intermittent manner, thereby avoiding the accumulation of dust on the filter surface of the filter element, slowing down the clogging speed of the filter element, and reducing the frequency of flushing the filter element with compressed gas.

[0018] 2. In the carbon black spiral feeding device for receiving dusty materials, the blocking mechanism can not only guide the gas in the storage tank by isolation, but also intercept the carbon black during the isolation process, so that the intercepted carbon black falls after accumulating for a period of time. The accumulated carbon black will produce a strong impact force on the carbon black at the bottom of the storage tank during the falling process, thereby changing the state of the carbon black at the bottom of the storage tank and avoiding carbon black blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the internal structure of the storage tank of the present invention; Figure 3 It is a structural schematic diagram of the blocking mechanism of the present invention; Figure 4 The structure of the filter element of the present invention is shown in FIG. Figure 1 ; Figure 5 The structure of the filter element of the present invention is shown in FIG. Figure 2 ; Figure 6 It is a schematic structural diagram of the first baffle plate of the present invention; Figure 7 is a schematic diagram of the gas flow in the first chamber of the present invention; Figure 8 is a schematic diagram of the gas flow in the second chamber of the present invention; Fig. 9 The working state of the blocking mechanism of the present invention is shown in FIG. Figure 1 ; Fig.10 The working state of the blocking mechanism of the present invention is shown in FIG. Figure 2 ; Fig.11 The working state of the blocking mechanism of the present invention is shown in FIG. Figure 3 ; Fig.12 It is a schematic diagram of the blocking state of the partition of the present invention; Fig.13 It is a schematic diagram of the structure of the stirring rod of the present invention.

[0020] The meaning of each number in the figure is: 100, storage tank; 101, cover plate; 102, vertical pipe; 103, feed pipe; 104, feed port; 105, spiral plate; 106, first motor; 107, valve plate; 110, first feed port; 111, second feed port; 120, first exhaust port; 121, second exhaust port; 122, air pipe; 123, exhaust port; 124, filter element; 125, frame; 126, pressure plate; 12 7. Air vent; 128. Straight rod; 129. Air flushing pipe; 130. Partition; 131. Dropping port; 132. First chamber; 133. Second chamber; 140. Blocking mechanism; 141. First baffle plate; 142. Second baffle plate; 143. Side ring; 144. First air baffle plate; 145. Second air baffle plate; 146. Rotating shaft; 147. Second motor; 150. Agitating rod; 200. Feeding pipe. DETAILED DESCRIPTION

[0021] The following will be combined with the accompanying drawings in the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0024] The present invention provides a carbon black spiral feeding device for receiving dusty materials, such as Figure 1As shown, the feeding device includes a storage tank 100 and a feeding pipe 103 arranged at the bottom of the storage tank 100. The upper part of the storage tank 100 is a circular tubular structure for increasing the storage space, and the lower part is a funnel-shaped structure, which is convenient for carbon black to be discharged from the bottom of the storage tank 100; and the top of the storage tank 100 is a closed structure, specifically, a cover plate 101 is arranged on the top of the storage tank 100 to prevent dust from being discharged from the top.

[0025] The feed pipe 103 can be arranged in a horizontal state, a vertical state or an inclined state, etc. For ease of understanding, in this embodiment, the feed pipe 103 is arranged in a horizontal state as a whole. Figure 1 As shown, a vertical pipe 102 is arranged at the top of the feed pipe 103 corresponding to the bottom of the storage tank 100, and the bottom of the storage tank 100 is connected to the feed pipe 103 through the vertical pipe 102, and one end of the bottom of the feed pipe 103 has a discharge port 104 for discharging carbon black from the feed pipe 103. In the portion between the vertical pipe 102 and the discharge port 104, the present invention adopts a spiral feeding method to drive the carbon black in the feed pipe 103. Figure 2 As shown, a spiral plate 105 is arranged in the material conveying pipe 103 , one end of the spiral plate 105 rotates to penetrate one end of the material conveying pipe 103 and is connected to a first motor 106 . The first motor 106 can be installed at the end of the material conveying pipe 103 .

[0026] In this way, the carbon black in the storage tank 100 falls into the feeding pipe 103 through the vertical pipe 102 under the action of gravity. At this time, the spiral plate 105 is driven by the first motor 106 to rotate, so that the spiral plate 105 pushes the carbon black in the feeding pipe 103 to the lower feeding port 104. When the carbon black is at the lower feeding port 104, the carbon black falls through the lower feeding port 104. The end of the lower feeding port 104 can be connected to the granulator. In this way, the carbon black will directly enter the granulator after passing through the lower feeding port 104, thereby entering the granulation process and completing the feeding operation.

[0027] It should be understood that in order to achieve control over feeding, Figure 2 As shown, a valve plate 107 can be rotatably arranged in the vertical pipe 102, and the valve plate 107 is connected to a drive motor (refer to Figure 1 The internal space of the vertical pipe 102 is changed by rotating the valve plate 107 to intercept the carbon black, thereby achieving control of the feeding.

[0028] like Figure 2 and Figure 3 As shown, an isolation mechanism is provided inside the storage tank 100, and the isolation mechanism is used to isolate the internal space of the storage tank 100, so that two chambers are formed inside the storage tank 100, and the two chambers can be connected or isolated through the isolation mechanism.

[0029] The side wall of the storage tank 100 is also provided with a first feed port 110 connected to one of the chambers, a second feed port 111 connected to the other chamber, and a flow guide filtration pipe having a filter element 124 disposed therein. During installation, the first feed port 110 and the second feed port 111 are connected to a feed pipe 200, and the structure of the feed pipe 200 is as follows: Figure 2 As shown, the overall structure is a "Y" shape, wherein the two ends of the fork are connected to the first feed port 110 and the second feed port 111 correspondingly, and the other end is connected to the workshop where the carbon black is stored, and the carbon black is fed into the feed pipe 200, and then air is blown into the feed pipe 200 by the fan. At this time, the airflow drives the carbon black in the feed pipe 200 to move, and enters the storage tank 100 through the first feed port 110 and the second feed port 111. One end of the diversion filter pipe is connected to one of the chambers, and the other end is connected to the other chamber. The interior of the filter element 124 is a hollow structure, and the filter element 124 has two filtering surfaces, and the two filtering surfaces are arranged corresponding to the two chambers; the diversion filter pipe is provided with an exhaust port 123 (reference Figure 4 ).

[0030] In this way, the isolation mechanism seals one of the chambers, allowing the airflow in the other chamber to be filtered by one of the filter surfaces and then discharged through the exhaust port 123, and during the discharge process, the other filter surface is backwashed by the pressure difference.

[0031] In the above, if Figure 2 and Figure 3 The isolation mechanism includes a partition 130 having a material drop opening 131, and a blocking mechanism 140 rotatably arranged at the bottom of the partition 130. The blocking mechanism 140 blocks the material drop opening 131 during the rotation process, and the interior of the storage tank 100 is divided into two chambers, which are a first chamber 132 and a second chamber 133. The first chamber 132 is located above the partition 130, and the second chamber 133 is located below the partition 130. The blocking mechanism 140 also includes a shielding portion, which seals the first feed opening 110 or the second feed opening 111 by rotating when the blocking mechanism 140 blocks the material drop opening 131.

[0032] like Figure 2As shown, the partition 130 is composed of two symmetrical plates, and a gap in the shape of "1" is reserved between the two plates to form a feed opening 131. The two plates are located between the first feed opening 110 and the second feed opening 111, and the two plates are fixedly connected to the cover plate 101 through a fixing rod arranged at the top to achieve fixation in the storage tank 100. In this way, when the carbon black enters the storage tank 100 from the first feed opening 110, the carbon black can fall downward through the feed opening 131 to achieve the entry of the carbon black into the vertical pipe 102. To facilitate the falling of the carbon black, the two plates in this embodiment are arranged in an inclined state where they are high near the inner wall of the storage tank 100 and low near the feed opening 131. In addition, the outer side of the plate close to the inner wall of the storage tank 100 corresponds to the curvature of the inner wall of the storage tank 100 (refer to Figure 6 ), the shape can be understood as a semicircular structure, and a gap is reserved between the outer ring of the plate body and the inner wall of the storage tank 100 to provide space for the setting of the blocking mechanism 140.

[0033] like Figure 6 As shown, the blocking mechanism 140 includes a baffle plate rotatably disposed below the material drop port 131, and a side ring 143 fixedly disposed at the end of the baffle plate. The baffle plate is an "X"-shaped structure, and the top of the baffle plate fits with the bottom of the partition 130 to achieve a sealing effect. The side ring 143 is located in the gap reserved between the plate body and the storage tank 100, that is, the outer ring of the side ring 143 slides and fits with the inner wall of the storage tank 100, and the inner wall slides and fits with the outer side of the plate body. In this way, the side ring 143 fills the gap reserved between the plate body and the storage tank 100, and prevents the first chamber 132 and the second chamber 133 from being connected through the gap reserved between the plate body and the storage tank 100. Next, the shielding portion includes a first air baffle plate 144 fixedly arranged at the top end of the side ring 143, and a second air baffle plate 145 fixedly arranged at the bottom end of the side ring 143; and the outer walls of the second air baffle plate 145 and the first air baffle plate 144 are slidably fitted with the inner wall of the storage tank 100. The baffle plate blocks the blanking port 131 by rotating, and after the baffle plate blocks the blanking port 131, the first air baffle plate 144 seals the first feed port 110 or the second air baffle plate 145 seals the second feed port 111.

[0034] The drive of the baffle plate is preferably driven by a motor, and its structure is as follows Figure 3 and Figure 6 As shown, by fixing a rotating shaft 146 on the top of the baffle plate, the top of the rotating shaft 146 is fixedly passed through the top of the storage tank 100 (i.e., the cover plate 101), and is connected to the second motor 147 arranged on the top of the storage tank 100 (i.e., the top of the cover plate 101). At this time, the second motor 147 can drive the baffle plate to rotate through the rotating shaft 146.

[0035] In one embodiment, the baffle plate includes a first baffle plate 141 and a second baffle plate 142, both of which have shapes corresponding to the blanking port 131, that is, the shapes of the first baffle plate 141 and the second baffle plate 142 are both "1" shaped. The first baffle plate 141 and the second baffle plate 142 are cross-arranged to form an "X" shaped structure. In addition, the first air baffle plate 144 is arranged corresponding to one end of the second baffle plate 142, and the second air baffle plate 145 is arranged corresponding to one end of the first baffle plate 141. In this way, when the first baffle plate 141 blocks the blanking port 131, the first air baffle plate 144 blocks the first feed port 110, and when the second baffle plate 142 blocks the blanking port 131, the second air baffle plate 145 blocks the second feed port 111.

[0036] The specific blocking process is as follows: like Fig. 9 As shown, when the first baffle plate 141 rotates to the bottom of the material opening 131, the first baffle plate 141 blocks the material opening 131. At this time, the first air baffle plate 144 rotates to the first feed opening 110 to seal the first feed opening 110. At this time, the airflow enters the storage tank 100 through the second feed opening 111. Fig.10 As shown, when the first baffle plate 141 and the second baffle plate 142 do not block the material drop opening 131, the carbon black located on the top of the partition plate 130 can fall downward through the material drop opening 131. Fig.11 As shown, when the second baffle plate 142 rotates to the bottom of the material drop port 131, the second baffle plate 142 blocks the material drop port 131. At this time, the second air baffle plate 145 rotates to the second feed port 111 to seal the second feed port 111. At this time, the air flow enters the storage tank 100 through the first feed port 110.

[0037] like Figure 2 and Figure 3 As shown, the top of the cover plate 101 is provided with a first exhaust port 120 connected to the first chamber 132, and the side wall of the storage tank 100 is provided with a second exhaust port 121 connected to the second chamber 133. The flow guide filtration pipeline includes an air pipe 122 connected to the first exhaust port 120 at one end and connected to the second exhaust port 121 at the other end. In this way, when the airflow enters the storage tank 100, it can flow into the air pipe 122 through the first exhaust port 120 and the second exhaust port 121. For this purpose, Figure 4 As shown, the present invention also provides an exhaust port 123 on one side of the air pipe 122 for exhausting the airflow entering the air pipe 122. In addition, in order to achieve a filtering effect, the portion of the air pipe 122 corresponding to the exhaust port 123 is also provided as an installation cavity for installing the filter element 124, and the exhaust port 123 is located at the top of the installation cavity.

[0038] The shape of the installation cavity corresponds to the shape of the filter element 124. The filter element 124 may be a circular tube, a square tube, or other annular structures. For ease of understanding, the filter element 124 is described in detail in the embodiment as a square tube. Figure 4 and Figure 5 As shown, the square tube-shaped filter element 124 is connected from top to bottom, and a frame 125 is provided inside to support the shape of the filter element 124. The filter element 124 is installed in the installation cavity through the exhaust port 123. In this way, the side of the filter element 124 close to the gas in the first chamber 132 forms a first filter surface for filtering the gas in the first chamber 132; the side of the filter element 124 close to the gas in the second chamber 133 forms a second filter surface for filtering the gas in the second chamber 133.

[0039] A pressure relief valve is provided at the exhaust port 123 to increase the pressure inside the filter element 124, so as to backwash the first filter surface or the second filter surface under the action of the pressure difference.

[0040] Specifically, the pressure relief valve is a pressure plate 126 that is slidably disposed at the exhaust port 123, and a gas relief port 127 is disposed at the pressure plate 126, where the exhaust flow rate is less than the gas delivery flow rate of the air pipe 122. Specifically, a straight rod 128 is disposed on the side wall of the air pipe 122 at the exhaust port 123, and the straight rod 128 is slidably connected to the pressure plate 126 (a spring may also be disposed between the pressure plate 126 and the straight rod 128, and the pressure plate 126 is tightly covered at the exhaust port 123 by the spring). Under normal conditions, the pressure plate 126 seals the exhaust port 123 by covering the exhaust port 123, and uses its own gravity to block the gas entering the filter element 124, so as to increase the pressure inside the filter element 124, thereby backwashing one of the filter surfaces under the action of the pressure difference.

[0041] The specific process is as follows: like Figure 7As shown, first, the second air baffle 145 seals the second feed port 111, and then the fan is started, so that the feed pipe 200 conveys the carbon black to the first feed port 110 and the second feed port 111 in a positive pressure air delivery manner. However, since the second feed port 111 is sealed, the airflow and the carbon black can only enter the first chamber 132 through the first feed port 110, and the heavier carbon black falls on the top of the partition 130 by gravity, and the lighter carbon black flows into the first exhaust port 120 along with the airflow, and then enters the air pipe 122, and is filtered by the first filter surface of the filter element 124, and then discharged into the interior of the filter element 124. In this process, the pressure plate 126 seals the exhaust port 123 by its own gravity, so that the airflow in the filter element 124 is slowly discharged through the air leakage port 127, and since the air flow rate of the air pipe 122 is large, the internal air pressure of the filter element 124 gradually increases. At this time, the interior of the first chamber 132, the interior of the first exhaust port 120 and the interior of the filter element 124 are in a state of the same pressure, and the pressure of the second filter surface of the filter element 124 is less than the internal pressure of the filter element 124. At this time, under the action of the pressure difference, the filtered gas inside the filter element 124 is discharged through the second filter surface, thereby timely flushing the dust attached to the second filter surface. When the internal pressure of the first chamber 132 is consistent with the internal pressure of the second chamber 133, the air flow no longer flows through the second filter surface. When the pressure inside the filter element 124 overcomes the gravity of the pressure plate 126, the gas in the filter element 124 pushes the pressure plate 126 upward, and then is discharged through the exhaust port 123. When the carbon black reaches the specified capacity in the storage tank 100, the fan is turned off and the positive pressure air delivery is stopped. At this time, the air pressure in the storage tank 100 is slowly discharged through the air vent 127.

[0042] Then, the first air baffle 144 is controlled to seal the first feed port 110, and then the fan is started. The working process at this time is opposite to the above. For details, refer to Figure 8 , the present invention will not be described in detail here.

[0043] The fan is started intermittently to realize intermittent positive pressure air delivery of carbon black (using air to deliver carbon black), and the above steps are continuously repeated so that the airflow in the storage tank 100 flows through the two filter surfaces of the filter element 124 in a sequential intermittent manner. Specifically, when the airflow flows through the first filter surface of the filter element 124 through the first exhaust port 120, the backwashing of the second filter surface is completed. Then the airflow is controlled to flow through the second filter surface of the filter element 124 through the second exhaust port 121 to complete the backwashing of the first filter surface. Through such continuous work, the adhesion of dust on the surface of the filter element 124 can be reduced, and the clogging speed can be slowed down.

[0044] It can be seen that the present invention divides the interior of the storage tank 100 into two chambers, guides the airflow from two directions to both sides of the filter element 124, makes the pressure inside the filter element 124 greater than the pressure at one of the filter surfaces, and realizes backwashing of the filter surface. In addition, through the continuous rotation of the blocking mechanism 140, the airflow in the storage tank 100 flows through the two filter surfaces of the filter element 124 in a sequential and intermittent manner, thereby avoiding the accumulation of dust on the filter surface of the filter element 124, slowing down the clogging speed of the filter element 124, and reducing the frequency of flushing the filter element 124 with compressed gas.

[0045] It should be understood that the air pipe 122 is also provided with a flushing pipe 129 having one end extending into the filter element 124 and the other end connected to the compressed gas source. When the filter element 124 is blocked, high-pressure gas is transported to the filter element 124 through the flushing pipe 129 to clean the filter element 124.

[0046] In addition, if Fig.12 As shown, the blocking plate will cooperate with the partition 130 during the rotation process to intercept the carbon black on the top of the partition 130, so that the intercepted carbon black will fall after accumulating for a period of time. In other words, the blocking mechanism 140 can not only guide the gas in the storage tank 100 by isolation, but also intercept the carbon black during the isolation process, so that the intercepted carbon black will fall after accumulating for a period of time. The accumulated carbon black will produce a strong impact force on the carbon black at the bottom of the storage tank 100 during the falling process, thereby changing the state of the carbon black at the bottom of the storage tank 100 and avoiding carbon black blockage.

[0047] And, if Fig.13 As shown, a stirring rod 150 with its bottom end extended into the vertical pipe 102 can be fixed at the bottom of the baffle plate. The stirring rod 150 utilizes the rotation of the baffle plate to clear the carbon black in the vertical pipe 102, so that the carbon black can flow continuously and stably through the vertical pipe 102, thereby improving the accuracy of quantitative feeding.

[0048] It should be understood that the present invention continuously changes the direction of the airflow so that when the airflow flows through one side of the filter element 124, it impacts the other side. The impact force of this method comes from the wind force of the fan, so it will not affect the filter element 124. At the same time, in the present invention, the clogging efficiency of the filter element 124 is reduced by continuously changing the direction of the airflow to flush the dust down in time, so as to avoid the filter element 124 filtering with only one filtering surface, that is, soon after the dust is attached to the filter element 124, it is flushed down by the airflow on the other side.

[0049] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A carbon black spiral feeding device for receiving dusty materials, comprising a storage tank (100) and a feeding pipe (103) arranged at the bottom of the storage tank (100), wherein a cover plate (101) for sealing is arranged at the top of the storage tank (100), the feeding pipe (103) is communicated with the bottom of the storage tank (100), and a spiral plate (105) is arranged inside the feeding pipe (103), characterized in that: An isolation mechanism is provided inside the material storage tank (100), and the isolation mechanism is used to isolate the internal space of the material storage tank (100), so that two chambers are formed inside the material storage tank (100), and the two chambers can be connected or isolated through the isolation mechanism; The side wall of the storage tank (100) is further provided with a first feed port (110) communicating with one of the chambers, a second feed port (111) communicating with the other chamber, and a flow guiding and filtering pipe having a filter element (124) arranged therein; one end of the flow guiding and filtering pipe is communicated with one of the chambers, and the other end is communicated with the other chamber; the interior of the filter element (124) is a hollow structure, and the filter element (124) has two filtering surfaces, and the two filtering surfaces are arranged corresponding to the two chambers; and an exhaust port (123) is arranged at a portion of the flow guiding and filtering pipe corresponding to the internal space of the filter element (124); The isolation mechanism seals one of the chambers so that the airflow in the other chamber is filtered by one of the filter surfaces and then discharged through the exhaust port (123), and during the discharge process, the other filter surface is backwashed using the effect of the pressure difference.

2. The carbon black spiral feeding device for receiving dusty materials according to claim 1 is characterized in that: The isolation mechanism comprises a partition (130) having a material drop opening (131), and a blocking mechanism (140) rotatably arranged at the bottom of the partition (130), wherein the blocking mechanism (140) blocks the material drop opening (131) during rotation, so that a first chamber (132) and a second chamber (133) are formed inside the storage tank (100); wherein the first chamber (132) is located above the partition (130), and the second chamber (133) is located below the partition (130); The blocking mechanism (140) comprises a shielding portion, and when the blocking mechanism (140) blocks the material drop opening (131), the shielding portion seals the first material feed opening (110) or the second material feed opening (111) by means of rotation.

3. The carbon black spiral feeding device for receiving dusty materials according to claim 2 is characterized in that: The partition plate (130) is composed of two symmetrical plates, a material drop opening (131) is reserved between the two plates, and the two plates are located between the first material feed opening (110) and the second material feed opening (111), and are fixedly connected to the cover plate (101); The outer circle of the plate body corresponds to the curvature of the inner wall of the storage tank (100), and a gap is reserved between the outer circle of the plate body and the inner wall of the storage tank (100) to provide space for the setting of the blocking mechanism (140).

4. The carbon black spiral feeding device for receiving dusty materials according to claim 3 is characterized in that: The blocking mechanism (140) comprises a material blocking plate rotatably arranged below the material drop opening (131), and a side ring (143) fixedly arranged at the end of the material blocking plate; The baffle plate is an "X"-shaped structure, and the top of the baffle plate is in contact with the bottom of the partition plate (130); The side ring (143) is located in a gap reserved between the plate body and the storage tank (100); The shielding portion comprises a first air baffle plate (144) fixedly arranged at the top end of the side ring (143), and a second air baffle plate (145) fixedly arranged at the bottom end of the side ring (143), and the outer walls of the second air baffle plate (145) and the first air baffle plate (144) are both slidably fitted with the inner wall of the storage tank (100); The baffle plate seals the material drop opening (131) by rotating, and after the baffle plate seals the material drop opening (131), the first air baffle plate (144) seals the first material feed opening (110) or the second air baffle plate (145) seals the second material feed opening (111).

5. The carbon black spiral feeding device for receiving dusty materials according to claim 4 is characterized in that: A rotating shaft (146) is fixedly disposed at the top end of the material blocking plate; the top end of the rotating shaft (146) passes through the cover plate (101) and is connected to a second motor (147) disposed at the top of the cover plate (101).

6. The carbon black spiral feeding device for receiving dusty materials according to claim 4 is characterized in that: The material baffle plate comprises a first material baffle plate (141) and a second material baffle plate (142), both of which have shapes corresponding to the material drop opening (131); the first material baffle plate (141) and the second material baffle plate (142) are cross-arranged to form an "X"-shaped structure; The first air baffle plate (144) is arranged corresponding to one end of the second material baffle plate (142), and the second air baffle plate (145) is arranged corresponding to one end of the first material baffle plate (141); When the first material baffle plate (141) blocks the material drop opening (131), the first air baffle plate (144) blocks the first material feed opening (110); when the second material baffle plate (142) blocks the material drop opening (131), the second air baffle plate (145) blocks the second material feed opening (111).

7. The carbon black spiral feeding device for receiving dusty materials according to claim 2 is characterized in that: The flow guiding and filtering pipeline comprises an air pipe (122) having one end in communication with the first chamber (132) and the other end in communication with the second chamber (133); the exhaust port (123) is arranged on one side of the air pipe (122); The portion of the air pipe (122) corresponding to the exhaust port (123) is arranged as an installation cavity for installing the filter element (124), and the exhaust port (123) is located at the top of the installation cavity; a pressure relief valve is arranged at the exhaust port (123) for increasing the pressure inside the filter element (124), thereby backwashing the first filter surface or the second filter surface under the action of the pressure difference.

8. The carbon black spiral feeding device for receiving dusty materials according to claim 7 is characterized in that: The shape of the installation cavity corresponds to the shape of the filter element (124); the filter element (124) is in the shape of a square tube; and the filter element (124) is installed in the installation cavity through the exhaust port (123); A side of the filter element (124) close to the gas in the first chamber (132) forms a first filter surface for filtering the gas in the first chamber (132); a side of the filter element (124) close to the gas in the second chamber (133) forms a second filter surface for filtering the gas in the second chamber (133).

9. The carbon black spiral feeding device for receiving dusty materials according to claim 7, characterized in that: The pressure relief valve is a pressure plate (126) slidably arranged at the exhaust port (123); a straight rod (128) is fixedly arranged at a position of the air pipe (122) corresponding to the exhaust port (123) and is longitudinally slidably connected to the pressure plate (126); under normal conditions, the pressure plate (126) seals the exhaust port (123) by covering the exhaust port (123) and blocks the gas entering the filter element (124) by its own gravity, so as to increase the pressure inside the filter element (124); The pressure plate (126) is provided with an air vent (127) whose exhaust flow rate is smaller than the air delivery flow rate of the air pipe (122).

10. The carbon black spiral feeding device for receiving dusty materials according to claim 4, characterized in that: During the rotation process, the baffle plate cooperates with the partition plate (130) to intercept the carbon black on the top of the partition plate (130), so that the intercepted carbon black falls off after accumulation.

Images