A rapid pulp concentration tester for fiber wet pulp

Abstract

This invention discloses a rapid slurry concentration analyzer for wet-process fiber slurry, relating to the technical field of concentration measurement equipment. It includes: a frame with a controller mounted on it; a receiving tank within the frame; a filter hole at the top of the frame, communicating with the receiving tank; a filter screen detachably mounted within the filter hole; a vacuum mechanism within the receiving tank, communicating with the filter hole; a drying rack at the top of the frame, with the filter hole located below it; and a heat storage block on the drying rack, above the filter hole. The heat storage block is movable along the direction between the drying rack and the frame, and can contact the filter screen to transfer heat from the heat storage block to the filter screen. This invention enables rapid drying of fibers in the slurry, improving the efficiency and convenience of fiber concentration measurement.

Description

Technical Field

[0001] This invention relates to the field of concentration measuring equipment, and in particular to a rapid slurry concentration measuring instrument for wet fiber slurry. Background Technology

[0002] The pulp manufacturing process is mainly divided into two processes: pulping and papermaking. Pulping is the process of making pulp from plant fiber raw materials or recycled waste paper, while papermaking is the process of using appropriate processes to reproduce pulp into paper or paperboard with different properties.

[0003] Because the pulping and papermaking process is complex, the pulp formed by different raw materials and pulping methods has different characteristics, and the paper products are also different. For example, when pulp prepared by the fiber wet process is used for papermaking, it is necessary to verify whether the concentration of the pulp reaches the concentration ratio required for papermaking during the manufacturing process.

[0004] According to the standard "Determination of Pulp Concentration (GB / T 5399-2004)(ISO 4119:1995)", the existing testing method is to first physically filter the pulp, then put the fiber residue obtained after physical filtration into an oven and bake it for about two hours to dry it completely. The weight of the fiber residue is then calculated and divided by the weight of the fiber pulp before filtration to obtain the fiber ratio of the concentrated pulp. This process is complicated, cumbersome, and time-consuming, which reduces the efficiency of subsequent papermaking processes. Summary of the Invention

[0005] The purpose of this invention is to provide a rapid slurry concentration measuring instrument for wet fiber slurry. This instrument can quickly dry the fibers in the slurry, thereby improving the efficiency and convenience of measuring the fiber concentration.

[0006] To achieve the above objectives, the present invention provides a rapid pulp concentration tester for wet fiber pulp, the specific implementation of which is as follows:

[0007] A rapid pulp concentration tester for fiber wet pulp includes:

[0008] A frame, on which a controller is mounted;

[0009] A receiving slot is provided within the frame;

[0010] A filter hole is formed at the top of the frame and connects to the receiving groove;

[0011] The filter screen is detachably mounted inside the filter holes;

[0012] A vacuuming mechanism is provided in the receiving groove, and the vacuuming mechanism is connected to the filter hole;

[0013] A drying rack is mounted on top of the machine frame, and the filter holes are located below the drying rack;

[0014] A heat storage block is disposed on the drying rack, located above the filter holes. The heat storage block can move along the direction between the drying rack and the frame, and the heat storage block can contact the filter screen to conduct the heat on the heat storage block to the filter screen.

[0015] This invention provides a rapid slurry concentration tester for wet fiber slurry. Compared to existing technologies, this invention utilizes a vacuum mechanism housed within a receiving tank in a frame. This vacuum mechanism is connected to a filter hole at the top of the frame. A removable filter screen is mounted at the top of the filter hole. A drying rack is mounted at the top of the frame, and a heat storage block movable along the direction between the drying rack and the frame is mounted on the drying rack. The heat storage block movably contacts the filter screen, transferring heat from the heat storage block to the filter screen. When slurry concentration needs to be measured, the slurry to be measured is poured onto the filter screen, isolating the fibers in the slurry within the filter screen. The liquid flows from the filter hole into the vacuum mechanism for storage. During this process, a controller preheats the heat storage block to a high temperature. The heat storage block is then lowered from the drying rack towards the machine frame under the control of the controller, so that the heat storage block contacts the filter screen. At the same time, the fibers on the filter screen come into contact with the heat storage block for heat conduction. At this time, the controller controls the vacuum mechanism to operate and vacuum the space between the filter screen and the heat storage block. The moisture on the fibers and the water vapor evaporated by the heat storage block at high temperature to dry the fibers are quickly drawn into the vacuum system to achieve rapid drying of the fibers (about 5 minutes). The fiber concentration of the slurry is calculated based on the weight of the dried fibers and the weight of the slurry to be tested. This effectively achieves rapid drying of the fibers in the fiber slurry and improves the efficiency and convenience of fiber concentration measurement.

[0016] In some embodiments, the following are included:

[0017] The lifting area is formed between the bottom end of the drying rack and the top end of the frame;

[0018] A lifting block is mounted on the drying rack in a lifting manner, and a heat storage block is provided at the bottom end of the lifting block;

[0019] The heat storage block and the filter hole cooperate to form a first state or a second state, and the lifting block cooperates with the drying rack in the lifting area to form a first position and a second position.

[0020] In the first state, the lifting block moves from the first position to the second displacement, and the bottom end of the heat storage block contacts the filter screen, forming a filtered and dried state;

[0021] In the second state, the lifting block moves from the second position back to the first position, and the heat storage block separates from the filter screen, forming a physical filtration state.

[0022] By forming lifting areas at the bottom of the drying rack and the top of the frame, the top of the drying rack is positioned above the filter holes. This allows the lifting block to move the heat storage block within the lifting area, improving the stability and accuracy of the lifting process. This ensures that the heat storage block can accurately engage with the filter holes, enabling rapid drying of the fibers filtered by the filter screen mounted on the filter holes.

[0023] In some embodiments, the following are included:

[0024] An installation slot is formed inside the drying rack, and the lifting block is disposed inside the installation slot;

[0025] The lifting cylinders are mounted on both sides of the mounting slot, and the lifting blocks are connected to the top of the two lifting cylinders.

[0026] The lifting guide rod is located on both sides of the mounting groove, and the lifting block passes through the top of the lifting guide rod. The lifting cylinder and the lifting block can be raised and lowered along the axial direction of the lifting guide rod.

[0027] By setting an installation groove inside the drying rack, the lifting cylinder and lifting guide rod are placed in the installation groove, which plays a protective role for the lifting cylinder and lifting guide rod. A lifting block is set at the top of the lifting cylinder. The lifting block can be lifted and fitted onto the lifting guide rod. The extension and retraction of the lifting cylinder drives the lifting block to rise and fall on the lifting guide rod, which improves the accuracy and smoothness of the lifting block's lifting.

[0028] In some embodiments, the following are included:

[0029] A connecting rod is provided on the lifting block, with its bottom end extending toward the filter screen and connected to the heat storage block at its bottom end;

[0030] A telescopic sleeve is fitted over the heat storage block, with the bottom end of the telescopic sleeve located below the bottom end of the heat storage block, and the telescopic sleeve can extend and retract along the axial direction of the connecting rod to press against the top of the filter hole.

[0031] By setting a connecting rod on the lifting block, the bottom end of the connecting rod is connected to a heat storage block, and a telescopic sleeve is fitted onto the heat storage block, with the bottom end of the telescopic sleeve located below the bottom end of the heat storage block. The telescopic sleeve can extend and retract along the axial direction of the connecting rod to press against the top of the filter hole, thereby sealing the connection between the filter hole and the telescopic sleeve. This allows the vacuuming mechanism to vacuum the space between the filter screen and the heat storage block, achieving the purpose of filtering moisture and improving fiber drying efficiency.

[0032] In some embodiments, the following are included:

[0033] A protruding post is provided at the top of the frame and extends toward the drying mechanism, and the filter hole is provided on the protruding post;

[0034] A snap-fit ​​groove is formed at the top of the protrusion, and at least two grooves are formed.

[0035] A snap-fit ​​protrusion is provided on the outer peripheral wall of the filter screen. The snap-fit ​​protrusion engages with the snap-fit ​​groove, and the outer peripheral wall of the filter screen is smaller than the inner peripheral wall of the filter hole.

[0036] By setting protruding posts on the frame, with filter hole through-mounting grooves inside the protruding posts, and at least two snap-fit ​​grooves at the top of the protruding posts, and snap-fit ​​protrusions on the outer peripheral wall of the filter screen that engage with the snap-fit ​​grooves, the filter screen is placed on the protruding posts and located within the filter holes, thereby improving the ease of disassembly and assembly and the stability of placement of the filter screen.

[0037] In some embodiments, the following are included:

[0038] At least two fixing blocks are provided, located at the top of the frame, near the outer wall of the protruding column;

[0039] A connecting rod is located at the top of the fixed block and is rotatably connected to the fixed block;

[0040] A snap-fit ​​block is located at the other end of the connecting rod and is rotatably connected to the connecting rod.

[0041] A lifting groove is provided at the top of the frame, located between the fixed block and the protruding column;

[0042] A lifting component is disposed within the lifting groove. The top end of the lifting component is rotatably connected to the other end of the snap-fit ​​block, and the lifting component can move along the axial direction of the lifting groove.

[0043] The first cylinder is located in the accommodating groove, and its telescopic end is connected to the bottom end of the lifting block.

[0044] At least two fixed blocks are installed at the top of the frame, near the outer wall of the protruding column. A lifting groove is set between the protruding column and the fixed blocks. A lifting component is installed in the lifting groove. The bottom end of the lifting component is connected to a first cylinder located in the receiving groove. Under the extension and retraction of the extension and retraction end of the first cylinder, the component moves up and down in the axial direction of the lifting groove. A rotatable connecting rod is connected to the top of the fixed blocks. The top end of the connecting rod is connected to a slidable locking block. The other end of the locking block is connected to the lifting component and is rotatably connected to it. Under the extension and retraction of the extension and retraction end of the first cylinder, the locking block rotates towards the protruding column to press the heat storage block, thereby improving the pressure stability between the heat storage block and the protruding column. When the heat storage block needs to be separated, the extension and retraction of the first cylinder is used to make the locking block rotate away from the protruding column to separate it from the heat storage block.

[0045] In some embodiments, the vacuuming mechanism includes:

[0046] A sealing cover is installed on the top wall of the receiving groove, forming a sealing area between the cover and the top of the receiving groove, and the bottom outlet of the filter hole is located within the sealing area.

[0047] A vacuum suction tube is connected to the sealing outlet at the bottom end of the sealing cover, thereby opening the sealing area;

[0048] A vacuum chamber is located at the bottom end of the receiving groove;

[0049] A vacuum pump is installed in the receiving groove or the vacuum box. The suction end of the vacuum pump is connected to the vacuum suction tube, and the discharge end of the vacuum pump is connected to the vacuum box.

[0050] By using a sealing cover to cover the top wall of the receiving tank to form a sealed area, the bottom outlet of the filter hole is located within the sealed area. This avoids the situation where the vacuum suction tube is not sealed or not completely sealed with the tank wall when the filter hole is covered, which would prevent the vacuum pump from achieving a vacuum state between the heat storage block and the filter screen during operation, thus reducing the drying efficiency of the fiber.

[0051] In some embodiments, the following are included:

[0052] At least two lifting holes are provided, which are opened at the top of the frame and located near the filter holes;

[0053] A push rod is provided in the receiving groove and can pass through the lifting hole axially to press against the bottom end of the filter screen;

[0054] A weighing sensor is disposed in the receiving groove, and a push rod is provided at the top of the weighing sensor;

[0055] The second cylinder is located inside the accommodating groove, and its telescopic end is connected to the bottom end of the weighing sensor.

[0056] By opening a lifting hole in the frame, a push rod is installed in the receiving slot to push the filter screen through the lifting hole. A weighing sensor is connected to the bottom end of the push rod, and a second cylinder is connected to the bottom end of the weighing sensor. In use, the telescopic end of the second cylinder extends and retracts, causing the weighing sensor and the push rod to rise and fall, which in turn causes the filter screen to rise and fall, so that the weight of the filter screen acts on the push rod. The weight of the filtered and dried fiber can be obtained by subtracting the weight of the filter screen from the weight of the filter screen itself. This improves the versatility and convenience of the rapid pulp concentration tester for fiber wet pulp.

[0057] In some embodiments, the following are included:

[0058] The mounting plate is hung in the receiving groove, the second cylinder is located at the bottom end of the mounting plate, and the telescopic end of the second cylinder passes through the mounting plate and is connected to the bottom end of the weighing sensor.

[0059] At least two fixing rods are provided on the mounting plate, with their top ends connected to the top end of the receiving groove;

[0060] A lifting plate is located above the mounting plate, and the weighing sensor is provided on the top surface of the lifting plate;

[0061] At least two guide rods are provided and are arranged opposite each other on the mounting plate. The top end of the guide rod passes through the lifting plate and connects to the top end of the receiving groove.

[0062] A guide sleeve is fitted onto the guide rod, with its bottom end connected to the top end of the lifting plate.

[0063] An installation plate is hung in the accommodating groove by a fixing rod connected to the top of the accommodating groove. The bottom end of the installation plate is connected to the second cylinder. The telescopic end of the second cylinder is connected to a lifting plate. A weighing sensor is installed on the lifting plate. The lifting plate is fixed above the installation plate by at least two guide rods set on the installation plate. A guide sleeve connected to the lifting plate is sleeved on the guide rods. This improves the lifting accuracy and stability of the lifting plate driven by the second cylinder.

[0064] In some embodiments, the following are included:

[0065] A protrusion is provided at the top of the frame;

[0066] A groove is formed on the protrusion, and the groove is open on the side facing the filter hole.

[0067] A flip-up component is rotatably mounted within the groove;

[0068] A flipping cylinder, located at the top of the flipping component, can rotate along the flipping direction of the flipping component to press against the top of the frame, and covers the filter screen and filter holes;

[0069] The third cylinder is fixed in the receiving groove, and its telescopic end can extend into the groove.

[0070] The connecting block has the top end of the telescopic end of the third cylinder body, which is rotatably connected to the bottom end of the flipping component.

[0071] A protrusion is provided at the top of the frame, and a rotatable flipping component is installed in the groove of the protrusion. A flipping cylinder is installed at the top of the flipping component, and a third cylinder is installed in the receiving groove. A connecting block is connected to the top of the telescopic end of the third cylinder, and the connecting block is connected to the bottom of the flipping component. The telescopic end of the third cylinder drives the connecting block to rise and fall, causing the flipping component to rotate in the groove. This causes the flipping cylinder to rotate and press against the top of the frame, covering the filter screen and filter holes. During use, the slurry is poured into the flipping cylinder to avoid splashing of the slurry during pouring, which would affect the accuracy of the slurry concentration measurement.

[0072] Based on the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0073] A vacuum mechanism is installed in the receiving tank inside the frame. The vacuum mechanism is connected to the filter hole at the top of the frame. A removable filter screen is installed at the top of the filter hole. A liftable drying mechanism is installed at the top of the frame. A heat storage block is installed on the drying mechanism. The heat storage block can be lifted and lowered to contact the filter screen. When it is necessary to measure the slurry concentration, the slurry to be measured is poured onto the filter screen, so that the fibers in the slurry are isolated on the filter screen. The liquid flows from the filter hole into the vacuum mechanism for storage, thus realizing the preliminary physical filtration of the fiber slurry.

[0074] During the initial physical filtration process, the controller preheats the heat storage block to a high temperature (approximately 50°C). Then, the controller controls the drying mechanism to lower the heat storage block, bringing it into contact with the filter screen. Simultaneously, the fibers on the filter screen come into contact with the heat storage block. At the same time, the controller controls the vacuum mechanism to evacuate the space between the filter screen and the heat storage block. This rapidly draws the moisture on the fibers, as well as the evaporated water vapor from the heat storage block drying the fibers at high temperature, into the vacuum system. This achieves further physical filtration and, combined with the heating of the heat storage block, rapidly dries the fibers (approximately 5 minutes). The fiber concentration of the slurry is calculated based on the weight of the dried fibers and the weight of the slurry to be tested. This effectively achieves rapid drying of the fibers in the slurry, improving the efficiency and convenience of fiber concentration measurement. Attached Figure Description

[0075] Figure 1This is a perspective view of the present invention;

[0076] Figure 2 This is a perspective view of the invention from another angle;

[0077] Figure 3 This is an exploded view of the present invention;

[0078] Figure 4 For the present invention Figure 3 A magnified view of a portion of the document;

[0079] Figure 5 This is an exploded view of the drying mechanism of the present invention;

[0080] Figure 6 This is a schematic diagram of the third cylinder body and the tilting cylinder of the present invention in cooperation;

[0081] Figure 7 This is a cross-sectional view of the present invention.

[0082] Explanation of reference numerals in the attached figures:

[0083] 10. Frame; 101. Receiving groove; 102. Protrusion; 1021. Filter hole; 103. Filter screen; 1031. Snap-fit ​​protrusion; 105. Lifting hole; 106. Mounting plate; 1061. Fixing rod; 107. Lifting plate; 1071. Guide rod; 1072. Guide sleeve; 108. Protrusion; 1081. Groove; 109. Pulley; 110. Drain outlet;

[0084] 20. Drying mechanism; 201. Drying rack; 202. Mounting slot; 203. Lifting device; 2031. Lifting block; 2032. Connecting rod; 2033. Telescopic sleeve; 2034. Heat storage block; 2035. Lifting cylinder; 2036. Lifting guide rod; 204. Lifting area;

[0085] 30. Vacuuming mechanism; 301. Sealing cover; 302. Connecting pipe; 303. Vacuum chamber; 304. Vacuum pump;

[0086] 401. First cylinder block; 402. Lifting component; 403. Clip-on block; 404. Connecting rod; 405. Fixing block;

[0087] 501. Second cylinder block; 502. Weighing sensor; 503. Support plate; 504. Push rod;

[0088] 601. Third cylinder block; 602. Connecting block; 603. Tilting component; 604. Tilting cylinder;

[0089] 70. Controller; 701. Column; 702. Connecting column; 703. Connecting plate. Detailed Implementation

[0090] The present invention provides a rapid pulp concentration measuring instrument for wet fiber pulp, described in conjunction with the accompanying drawings.

[0091] refer to Figures 1 to 7 As shown, the rapid slurry concentration tester for fiber wet slurry provided in this embodiment includes a frame 10, a receiving groove 101 is provided inside the frame 10, a vacuum mechanism 30 is provided in the receiving groove 101, a protruding post 102 is provided on the top of the frame 10, and a filter hole 1021 that is open on the protruding post 102 to conduct through the receiving groove 101 is provided. The vacuum mechanism 30 is in communication with the filter hole 1021.

[0092] Reference here Figure 1 and Figure 3 At least two snap-fit ​​grooves are provided on the protrusion 102. In this embodiment, three snap-fit ​​grooves are provided. The three snap-fit ​​grooves are arranged in a ring array with the axis of the filter hole 1021 as the center. The filter screen 103 is also included. Three snap-fit ​​protrusions 1031 that cooperate with the snap-fit ​​grooves are provided on the outer peripheral wall of the filter screen 103. The snap-fit ​​protrusions 1031 are embedded in the snap-fit ​​grooves to realize the quick assembly and disassembly of the filter screen 103 and the protrusion 102. The filtering part of the filter screen 103 is located at the top of the filter hole 1021. When the fiber slurry is poured into the filter hole 1021, it is filtered and isolated by the filter screen 103, leaving the fiber on the filter screen 103. The liquid flows into the vacuum structure in the receiving tank 101 through the filter hole 1021.

[0093] Reference here Figure 3 and Figure 7 The vacuuming mechanism 30 includes a sealing cover 301 disposed on the top wall of the accommodating groove 101, a vacuum box 303 and a vacuum pump 304 fixed to the bottom of the accommodating groove 101, a sealing area is formed between the sealing cover 301 and the top wall of the accommodating groove 101, a filter hole 1021 is opened in the sealing area, the bottom end of the sealing area is disposed in the connecting pipe 302, the suction end of the vacuum pump 304 is connected to the connecting pipe 302 through a vacuum suction pipe, and the discharge end of the vacuum pump 304 is connected to the vacuum box 303 through another vacuum pump 304. A drain port 110 for connecting to the vacuum box 303 is provided on the outer wall or bottom wall of the frame 10, and the opening and closing of the drain port 110 is realized by a control valve.

[0094] A drying mechanism 20 is set at the top of the frame 10. The drying mechanism 20 is equipped with a liftable heat storage block 2034. When the heat storage block 2034 descends and engages with the protrusion 102, the vacuum pump 304 is activated to perform vacuuming on the heat storage block 2034, the filter hole 1021 and the sealing area, thereby reducing the evaporation temperature of the moisture in the fiber and thus reducing the heat storage temperature of the heat storage block 2034.

[0095] Reference here Figure 1 , Figure 2 and Figure 5 The drying mechanism 20 includes a drying rack 201 mounted on the top of the frame 10. The drying rack 201 includes two opposing vertical columns and a horizontal column at the top of the vertical columns, forming a lifting area 204 from the top of the convex column 102 to the bottom of the horizontal column. A mounting groove 202 is provided inside the drying rack 201, and a lifting device 203 is provided within the mounting groove 202. Two lifting guide rods 2036 are oppositely arranged within the vertical columns of the lifting device 203. A lifting block 2031 is connected to the top of the two lifting guide rods 2036, and two opposing connecting rods 2032 are connected to the middle of the bottom of the lifting block 2031. The bottom end of 2032 is connected to a heat storage block 2034. A telescopic sleeve 2033 is fitted over the heat storage block 2034, and the bottom end of the telescopic sleeve 2033 is located below the bottom end of the heat storage block 2034. The telescopic sleeve 2033 can extend and retract along the lifting direction of the lifting block 2031. Two opposing lifting cylinders 2035 are provided in the receiving groove 101. The telescopic ends of the lifting cylinders 2035 pass through the frame 10 and extend into the mounting groove 202 to connect with the lifting block 2031. They are located in the two vertical columns. Correspondingly, the bottom end of the horizontal column is open to form a first through groove to accommodate the telescopic sleeve 2033.

[0096] In use, the heat storage block 2034 cooperates with the filter hole 1021 to form a first state or a second state. The lifting block 2031 and the drying rack 201 within the lifting area 204 cooperate to form a first position and a second position. In the first state, the lifting block 2031 moves from the first position to the second position under the drive of the lifting cylinder 2035. The bottom end of the telescopic sleeve 2033 presses against the top end of the protrusion 102, and the bottom end of the heat storage block 2034 contacts the filter screen 103, forming a filtering and drying state. The fibers are squeezed and dried, and the vacuum pump 30 is used to quickly dry the fibers. In the second state, the lifting block 2031 moves from the second position back to the first position under the drive of the lifting cylinder 2035. The heat storage block 2034 separates from the filter screen 103, forming a physical filtration state, with only gravity filtration and vacuum pump 304 filtration.

[0097] It is understandable that a sealing structure must be provided between the heat storage block 2034 and the telescopic sleeve 2033 to prevent water vapor from entering and damaging the circuit of the heat storage block 2034 during fiber drying. In this embodiment, a sealing silicone sheet is set on the outer peripheral wall of the heat storage block 2034. The sealing silicone sheet and the inner wall of the telescopic sleeve 2033 are integrally formed. The outer peripheral wall of the heat storage block 2034 is connected to the sealing silicone sheet by clamping. The length of the sealing silicone sheet must be greater than the distance from the inner wall of the telescopic sleeve 2033 to the outer wall of the heat storage block 2034, so that the telescopic sleeve 2033 has the same extension stroke as the stretchable length of the sealing silicone sheet, ensuring that the heat storage block 2034 can press against the filter screen 103.

[0098] Combination Figure 6 As shown, a protrusion 108 is provided on the top of the frame 10, and a groove 1081 is provided on the protrusion 108. The groove 1081 is open on the side facing the protrusion 102. A rotatable flipping member 603 is provided in the groove 1081. A flipping cylinder 604 is provided at the top of the flipping member 603, and a connecting block 602 is provided at the bottom. The bottom of the connecting block 602 is connected to a third cylinder 601. The third cylinder 601 is fixed in the receiving groove 101 of the frame 10. In use, the telescopic end of the third cylinder 601 is used to extend and retract to drive the flipping member 603 to rotate in the groove 1081, realizing the switching of the flipping cylinder 604 being sleeved on the top of the protrusion 102 or separated from the protrusion 102. This avoids the situation where the slurry splashes and causes inaccurate concentration measurement when the fiber is poured onto the filter screen 103.

[0099] Correspondingly, the bottom end of the flipping cylinder 604 and the top end of the protrusion 102 need to form a snap-fit ​​positioning structure. In this embodiment, it is preferred that when the filter screen 103 is placed on the protrusion 102, the top surface of the filter screen 103 is lower than the top surface of the protrusion 102. A protruding ring is provided on the bottom surface of the flipping cylinder 604 to realize the positioning of the flipping cylinder 604 and the protrusion 102. The protruding ring can be made of silicone to achieve the sealing of the connection between the flipping cylinder 604 and the protrusion 102.

[0100] To further improve the connection stability between the rotating cylinder 604 and the protrusion 102, at least two fixing blocks 405 are provided on the frame 10. A rotatable connecting rod 404 is provided on the fixing block 405. A rotatable locking block 403 is provided at the top of the connecting rod 404. A lifting member 402 is connected to the bottom of the locking block 403. The lifting member 402 passes through the lifting groove opened at the top of the frame 10 and is connected to the receiving groove 101. A first cylinder 401 is provided in the receiving groove 101. The telescopic end of the first cylinder 401 is connected to the lifting member 402. The lifting member 402 is used to lower and pull the locking block 403 to rotate, so that the top of the locking block 403 can be rotatably fastened to the outer wall of the rotating cylinder 604, thereby improving the connection stability between the rotating cylinder 604 and the protrusion. Conversely, the lifting member 402 is used to lift and push the locking block 403 to separate from the rotating cylinder 604, thereby realizing the rotation of the rotating cylinder 604 and the separation of the protrusion 102.

[0101] Of course, the flipping cylinder 604 can be omitted. The distance from the top of the protrusion 102 to the top of the filter screen 103 can be slightly increased, and the extension stroke of the telescopic sleeve 2033 can be adjusted to match the distance from the top of the protrusion to the top of the filter screen 103. This simplifies the structural complexity of the rapid pulp concentration tester for fiber wet pulp and reduces the equipment manufacturing cost.

[0102] Reference here Figure 3 and Figure 5 As shown, an installation plate 106 is provided in the receiving groove 101, and a fixing rod 1061 is provided at the four corners of the installation plate 106. The top end of the fixing rod 1061 is connected to the top wall of the receiving groove 101, so that the installation plate 106 is hung in the receiving groove 101. In this embodiment, two oppositely arranged fixing rods 1061 are preferably provided on the installation plate 106.

[0103] Two opposing first cylinders 401 are provided at the bottom end of the mounting plate 106. The top end of the telescopic end of the first cylinder 401 passes through the mounting plate 106 and extends into the lifting groove to connect the lifting component 402.

[0104] A second cylinder 501 is provided within the receiving groove 101. A lifting plate 107 is connected to the top of the telescopic end of the second cylinder 501. The lifting plate 107 is mounted on guide rods 1071 on both sides of the mounting plate 106 via guide sleeves 1072 at both ends of the lifting plate 107, enabling its elliptical connection to the mounting plate 106. Preferably, two guide sleeves 1072 are provided on each side of the lifting plate 107 in this embodiment. A weighing sensor 502 is provided at the top of the lifting plate 107, and a bearing plate 503 is connected to the top of the weighing sensor 502. Three push rods 503 arranged in a ring on the bearing plate 503 are provided. 04. The top end of the push rod 504 extends through a lifting hole 105 on the frame 10 to the top of the frame 10. In this embodiment, three lifting holes 105 are provided to match the snap-fit ​​protrusions 1031 of the filter screen 103, and the ends of the snap-fit ​​protrusions 1031 are located outside the protrusions 102, so that the top end of the push rod 504 can support and insert into the snap-fit ​​protrusions 1031, thereby lifting the filter screen 103 above the protrusions 102 so that the weight of the filter screen 103 and the fibers on it can be detected by the weighing sensor 502, and the weight of the fibers after drying can be obtained to calculate the concentration of the fiber wet slurry.

[0105] Understandably, in order to improve the ease of use of the rapid pulp concentration tester for fiber wet pulp, at least two sliding wheels 109 are provided at the bottom of the frame 10. In this embodiment, four sliding wheels 109 are preferably provided to push the frame 10 to move closer to the fiber wet pulp manufacturing equipment, thereby improving the convenience of pouring the fiber wet pulp into the rapid pulp concentration tester for concentration measurement.

[0106] A controller 70 is provided at the top of the frame 10. The controller 70 is electrically connected to the lifting cylinder 2035, the first cylinder 401, the second cylinder 501, the third cylinder 601 and the vacuum pump 304. The controller 70 is used to control the start and stop of the lifting cylinder 2035, the first cylinder 401, the second cylinder 501, the third cylinder 601 and the vacuum pump 304, and to preset the lifting stroke of the lifting cylinder 2035, the first cylinder 401, the second cylinder 501 and the third cylinder 601, as well as the vacuuming rate and vacuuming time of the vacuum pump 304.

[0107] Specifically, a column 701 is provided at the top of the frame 10, and a connecting column 702 is provided at the top of the column 701, perpendicular to the column 701. A connecting plate 703 is provided at both the top and bottom of the connecting column 702. The two connecting plates 703 are rotatably connected to the connecting column 702, and the other end of the two connecting plates 703 is connected to the controller 70, so as to realize the angle adjustment of the controller 70 on the frame 10, which is convenient for operators of different heights and different operating habits, and improves the ease of use and user experience.

[0108] Multiple heat dissipation grooves are provided on one or more outer walls of the frame 10 to conduct heat through the receiving groove 101, so as to dissipate the heat generated by the operation of the vacuum pump 304, lifting cylinder 2035, first cylinder 401, second cylinder 501, third cylinder 601 and weighing sensor 502 in the receiving groove 101 to the outside of the receiving groove 101, so as to avoid high temperature damage and improve service life.

[0109] The lifting cylinder 2035, the first cylinder 401, the second cylinder 501 and the third cylinder 601 described in this embodiment can be pneumatic cylinders or hydraulic cylinders. If the length of the telescopic end of the cylinder is insufficient to connect with the component, it can be extended through the coupling connecting rod 2032.

[0110] The following are the steps for using the rapid pulp concentration tester for wet fiber pulp provided in this embodiment:

[0111] First, the fiber wet slurry is poured into the filter hole 1021 of the protrusion 102. If a tilting cylinder 604 structure is provided, the third cylinder 601 needs to be raised by the control to drive the tilting cylinder 604 to tilt and press against the top of the protrusion 102. The fibers of the fiber wet slurry are isolated by the filter screen 103 and remain on the filter screen 103. Most of the liquid enters the vacuum box 303 of the vacuum mechanism 30 from the filter hole 1021 for storage. At the same time, the heat storage block 2034 is preheated to a temperature of about 50° by the controller 70.

[0112] The controller 70 controls the lifting cylinder 2035 to retract, causing the lifting block 2031 and the telescopic sleeve 2033 on the lifting block 2031 to descend until the bottom end of the telescopic sleeve 2033 presses against the top of the protrusion 102 or the top of the tilting cylinder 604. If there is a tilting cylinder 604 structure, the controller 70 controls the first cylinder 401 to retract, pulling the locking block 403 to rotate towards the protrusion 102 and press against the outer wall of the tilting cylinder 604.

[0113] The controller 70 controls the vacuum pump 304 to perform vacuuming on the space formed by the telescopic sleeve 2033, the protrusion 102 and the sealing cover 301 or the space formed by the telescopic sleeve 2033, the flipping cylinder 604, the protrusion 102 and the sealing cover 301, thereby reducing the evaporation temperature of the liquid inside the fiber. This allows the fiber to be dried in a vacuum environment at approximately 50°C for approximately 5 minutes, achieving complete drying of the fiber.

[0114] Finally, the controller 70 controls the second cylinder 501 to rise and push the lifting plate 107 to lift, which in turn drives the push rod 504 on the support plate 503 at the top of the weighing sensor 502 to lift and push the filter screen 103 in the axial direction of the lifting hole 105, lifting it and the fibers on it for weighing to obtain the weight of the dried fibers. This weight is then compared with the weight of the previously poured fiber wet slurry to obtain the slurry concentration of the fiber wet slurry.

[0115] The rapid slurry concentration measuring instrument for wet fiber slurry provided in this embodiment has the advantages of high integration, high drying efficiency, and concentration measuring block, which effectively realizes the rapid drying of fibers in the slurry and improves the efficiency and convenience of measuring the fiber concentration of the slurry.

[0116] Based on the disclosure and teachings of the foregoing specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should also fall within the protection scope of the claims of the present invention. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on the present invention.

Claims

1. A rapid pulp concentration tester for wet fiber pulp, characterized in that, include: A frame (10) is provided with a controller (70); A receiving slot (101) is provided within the frame (10); A filter hole (1021) is provided at the top of the frame (10) and is connected to the receiving groove (101); The filter screen (103) is detachably mounted inside the filter hole (1021); A vacuum mechanism (30) is provided in the receiving groove (101), and the vacuum mechanism (30) is connected to the filter hole (1021); A drying rack (201) is mounted on the top of the frame (10), and the filter hole (1021) is located below the drying rack (201); A heat storage block (2034) is disposed on the drying rack (201) and located above the filter hole (1021). The heat storage block (2034) can move along the direction between the drying rack (201) and the frame (10), and the heat storage block (2034) can contact the filter screen (103) to conduct the heat on the heat storage block (2034) to the filter screen (103). At least two lifting holes (105) are provided, which are opened at the top of the frame (10) and located near the filter hole (1021); A push rod (504) is provided in the receiving groove (101) and can pass through the lifting hole (105) axially to press against the bottom end of the filter screen (103); A weighing sensor (502) is disposed in the receiving groove (101), and a push rod (504) is provided at the top of the weighing sensor (502); The second cylinder (501) is located in the receiving groove (101), and its telescopic end is connected to the bottom end of the weighing sensor (502). The mounting plate (106) is hung in the receiving groove (101), the second cylinder (501) is located at the bottom end of the mounting plate (106), and the telescopic end of the second cylinder (501) passes through the mounting plate (106) and is connected to the bottom end of the weighing sensor (502). At least two fixing rods (1061) are provided on the mounting plate (106), and their top ends are connected to the top end of the receiving groove (101). A lifting plate (107) is located above the mounting plate (106), and the weighing sensor (502) is provided on the top surface of the lifting plate (107). At least two guide rods (1071) are provided and are arranged opposite to each other on the mounting plate (106). The top end of the guide rod (1071) passes through the lifting plate (107) and connects to the top end of the receiving groove (101). A guide sleeve (1072) is fitted onto the guide rod (1071), and its bottom end is connected to the top end of the lifting plate (107).

2. The rapid pulp concentration tester for wet fiber pulp according to claim 1, characterized in that, include: A lifting area (204) is formed between the bottom end of the drying rack (201) and the top end of the frame (10); A lifting block (2031) is mounted on the drying rack (201) in a lifting manner, and a heat storage block (2034) is provided at the bottom end of the lifting block (2031); The heat storage block (2034) cooperates with the filter hole (1021) to form a first state or a second state, and the lifting block (2031) cooperates with the drying rack (201) in the lifting area (204) to form a first position and a second position. In the first state, the lifting block (2031) moves from the first position to the second displacement, and the bottom end of the heat storage block (2034) contacts the filter screen (103), forming a filtered drying state; In the second state, the lifting block (2031) moves from the second position back to the first position, and the heat storage block (2034) separates from the filter screen (103), forming a physical filtration state.

3. The rapid pulp concentration tester for fiber wet pulp according to claim 2, characterized in that, include: An installation slot (202) is provided inside the drying rack (201), and the lifting block (2031) is provided inside the installation slot (202); Lifting cylinders (2035) are mounted on both sides of the mounting slot (202), and lifting blocks (2031) are connected to the top of the two lifting cylinders (2035). The lifting guide rod (2036) is located on both sides of the mounting groove (202), and the lifting block (2031) passes through the top of the lifting guide rod (2036). The lifting cylinder (2035) and the lifting block (2031) can be raised and lowered along the axial direction of the lifting guide rod (2036).

4. The rapid pulp concentration tester for wet fiber pulp according to claim 3, characterized in that, include: A connecting rod (2032) is provided on the lifting block (2031), with its bottom end extending toward the filter screen (103) and the heat storage block (2034) connected to its bottom end; A telescopic sleeve (2033) is fitted over the heat storage block (2034). The bottom end of the telescopic sleeve (2033) is located below the bottom end of the heat storage block (2034), and the telescopic sleeve (2033) can extend and retract along the axial direction of the connecting rod (2032) to press against the top of the filter hole (1021).

5. The rapid pulp concentration tester for wet fiber pulp according to any one of claims 1-4, characterized in that, include: A protruding post (102) is provided at the top of the frame (10) and extends toward the drying mechanism (20). The filter hole (1021) is provided on the protruding post (102). A snap-fit ​​groove is provided at the top of the protrusion (102), and at least two of them are provided; A snap-fit ​​protrusion (1031) is provided on the outer peripheral wall of the filter screen (103). The snap-fit ​​protrusion (1031) engages with the snap-fit ​​groove, and the outer peripheral wall of the filter screen (103) is smaller than the inner peripheral wall of the filter hole (1021).

6. The rapid pulp concentration tester for wet fiber pulp according to claim 5, characterized in that, include: At least two fixing blocks (405) are provided at the top of the frame (10) and located near the outer wall of the protrusion (102); A connecting rod (404) is located at the top of the fixed block (405) and is rotatably connected to the fixed block (405); A snap-fit ​​block (403) is provided at the other end of the connecting rod (404) and is rotatably connected to the connecting rod (404); The lifting groove is opened at the top of the frame (10) and is located between the fixing block (405) and the protruding column (102); A lifting component (402) is disposed in the lifting groove. The top end of the lifting component (402) is rotatably connected to the other end of the snap-fit ​​block (403), and the lifting component (402) can move along the axial direction of the lifting groove. The first cylinder (401) is located in the receiving groove (101), and its telescopic end is connected to the bottom end of the lifting block (2031).

7. The rapid pulp concentration tester for fiber wet pulp according to claim 6, characterized in that, The vacuum pumping mechanism (30) includes: A sealing cover (301) is installed on the top wall of the receiving groove (101) and a sealing area is formed between it and the top of the receiving groove (101). The bottom outlet of the filter hole (1021) is located within the sealing area. A vacuum suction tube is connected to the sealing outlet at the bottom end of the sealing cover (301) to conduct the sealing area; A vacuum chamber (303) is located at the bottom end of the receiving groove (101); A vacuum pump (304) is disposed in the receiving groove (101) or the vacuum box (303). The suction end of the vacuum pump (304) is connected to the vacuum suction tube, and the discharge end of the vacuum pump (304) is connected to the vacuum box (303).

8. The rapid pulp concentration tester for fiber wet pulp according to any one of claims 1-4, characterized in that, include: A protrusion (108) is provided at the top of the frame (10); A groove (1081) is formed on the protrusion (108), and the groove (1081) is open on the side facing the filter hole (1021); The flip-over component (603) is rotatably mounted in the groove (1081); A flipping cylinder (604) is located at the top of the flipping component (603), and can rotate along the flipping direction of the flipping component (603) to press against the top of the frame (10), and covers the filter screen (103) and filter holes (1021). The third cylinder (601) is fixed in the receiving groove (101), and its telescopic end can extend into the groove (1081). The connecting block (602) is provided with the top end of the telescopic end of the third cylinder (601) and is rotatably connected to the bottom end of the flipping member (603).

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