Double-disc pulping machine

Abstract

The utility model relates to the technical field of double-disc pulping machines, and discloses a double-disc pulping machine which comprises a machine body, a pulping chamber is arranged in the machine body, a first fixed grinding sheet is installed on the side face of a first baffle, a second fixed grinding sheet is installed on the side face of a second baffle, and a movable disc located in a pulping cavity is arranged at one end of a main shaft. A first communicating pipe communicated with the grinding cavity is arranged in the machine body, a first pulp inlet pipe connected with the first communicating pipe is arranged on the machine body, a second communicating pipe communicated with the grinding cavity is arranged in the machine body, a second pulp inlet pipe connected with the second communicating pipe is arranged on the machine body, and a pulp outlet pipe is arranged on the pulp grinding chamber. Through the arrangement of the first slurry inlet pipe and the second slurry inlet pipe, the double-slurry-inlet structure ensures that the pressure between the first fixed abrasive disc and the movable abrasive disc and the pressure between the second fixed abrasive disc and the movable abrasive disc are the same, the phenomenon that the abrasive discs are abraded unevenly is reduced, and therefore the frequency and cost for replacing the abrasive discs are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to double disc pulper technical field, concretely to double disc pulper. BACKGROUND

[0002] Double disc pulper is also called double disc mill, and is papermaking equipment, and the double disc pulper is mainly used as continuous pulping equipment for rough and fine grinding of a pulping system in the papermaking industry, and can also be used as high-efficiency defiberizing equipment for regrinding of pulp residue and regenerated pulp of waste paper.

[0003] Some double disc pulpers on the market: for example, the utility model patent with the authorized announcement number CN220079559U discloses a new double disc mill, which directly drives the main shaft to rotate through the permanent magnet motor rotor, and then drives the dynamic mill plate to rotate through the main shaft, and increases the bearing seat to improve the stability of the main shaft operation, the structure under the traditional structure part of the reducer is omitted, the length of the main shaft is shortened, the structure is simplified, the occupied space of the motor assembly is reduced, and the efficiency is higher than before, but the new double disc mill only has a single pulp inlet, and the single pulp inlet structure can cause different pressures between the two pairs of mill plates, the pressure between the mill plates far away from the pulp inlet is smaller, which can cause the distance between the mill plates to be closer than that between the other pair of mill plates, the close distance can cause the mill plates to wear faster, greatly shorten the service life of the mill plates, and often when the mill plates are replaced, the two pairs of mill plates cannot be replaced at the same time because of different wear and use conditions, which increases the replacement frequency of the mill plates, and when the mill plates are replaced, the double disc pulper needs to stop running, thereby causing the production capacity to decrease and the replacement cost to increase.

[0004] Therefore, the double disc pulper is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the problems of some double disc pulpers at present, which only have a single pulp inlet, and the single pulp inlet structure can cause different pressures between the two pairs of mill plates, the pressure between the mill plates far away from the pulp inlet is smaller, which can cause the distance between the mill plates to be closer than that between the other pair of mill plates, the close distance can cause the mill plates to wear faster, greatly shorten the service life of the mill plates, and often when the mill plates are replaced, the two pairs of mill plates cannot be replaced at the same time because of different wear and use conditions, which increases the replacement frequency of the mill plates, and when the mill plates are replaced, the double disc pulper needs to stop running, thereby causing the production capacity to decrease and the replacement cost to increase.

[0006] To achieve the above object, the utility model discloses the following technical scheme: double-disc pulper, including the body, the body is provided with the pulping chamber in, the body is fixed with first baffle and second baffle in, be provided with the grinding cavity between first baffle and second baffle, the grinding cavity is linked together with pulping chamber, the side of first baffle is installed with first fixed grinding piece, the side of second baffle is installed with second fixed grinding piece, the body is provided with the main shaft in, one end of main shaft is provided with the moving disc, the moving disc sets up in grinding cavity, and the moving disc is located between first fixed grinding piece and second fixed grinding piece, the body is provided with the first communication pipe fixed with first baffle in, be provided with the first inlet tube of pulp connected with first communication pipe on the body, and first communication pipe is linked together with grinding cavity, the body is provided with the second communication pipe fixed with second baffle in, be provided with the second inlet tube of pulp connected with second communication pipe on the body, and second communication pipe is linked together with grinding cavity, be provided with the outlet tube of pulp on pulping chamber.

[0007] Further, the moving disc includes a connecting plate fixed to the main shaft, and two sides of the connecting plate are symmetrically provided with moving grinding pieces.

[0008] Further, the moving grinding pieces are provided with a plurality of grinding teeth on surfaces thereof.

[0009] Further, the first baffle is provided with a plurality of first fixing bolts, the first fixed grinding piece and the first baffle are connected through the first fixing bolts, the second baffle is provided with a plurality of second fixing bolts, the second fixed grinding piece and the second baffle are connected through the second fixing bolts, and the moving grinding pieces are provided with a plurality of third fixing bolts, and the moving grinding pieces and the connecting plate are connected through the third fixing bolts.

[0010] Further, the first fixed grinding piece, the second fixed grinding piece, and the moving grinding pieces are made of high-chromium alloy steel.

[0011] The utility model discloses the following technical scheme: double-disc pulper, including the body, the body is provided with the pulping chamber in, the body is fixed with first baffle and second baffle in, be provided with the grinding cavity between first baffle and second baffle, the grinding cavity is linked together with pulping chamber, the side of first baffle is installed with first fixed grinding piece, the side of second baffle is installed with second fixed grinding piece, the body is provided with the main shaft in, one end of main shaft is provided with the moving disc, the moving disc sets up in grinding cavity, and the moving disc is located between first fixed grinding piece and second fixed grinding piece, the body is provided with the first communication pipe fixed with first baffle in, be provided with the first inlet tube of pulp connected with first communication pipe on the body, and first communication pipe is linked together with grinding cavity, the body is provided with the second communication pipe fixed with second baffle in, be provided with the second inlet tube of pulp connected with second communication pipe on the body, and second communication pipe is linked together with grinding cavity, be provided with the outlet tube of pulp on pulping chamber, through the setting of first inlet tube of pulp and second inlet tube of pulp, the pressure between the first fixed grinding piece and the moving grinding piece, the second fixed grinding piece and the moving grinding piece is same through the double inlet structure of pulp, reduces uneven phenomenon of grinding piece wear, thereby reduces the frequency and cost of replacing grinding piece. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 Figure is the structure diagram of double disc pulp refiner of the utility model.

[0013] The names corresponding to the marks in the figure are as follows:

[0014] 1, machine body; 2, refining chamber; 3, first baffle; 4, second baffle; 5, first fixed abrasive disc; 6, second fixed abrasive disc; 7, main shaft; 8, first communication pipe; 9, first pulp inlet pipe; 10, second communication pipe; 11, second pulp inlet pipe; 12, pulp outlet pipe; 13, connecting plate; 14, moving abrasive disc; 15, first fixing bolt; 16, second fixing bolt; 17, third fixing bolt. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art belong to the protection scope of the utility model.

[0016] Embodiments of the utility model:

[0017] Embodiment one

[0018] As Figure 1As shown, the utility model provides double disc refiner, including body 1, be provided with refiner chamber 2 in body 1, first baffle 3 and second baffle 4 are fixed in body 1, be provided with grinding cavity between first baffle 3 and second baffle 4, grinding cavity is linked together with refiner chamber 2, first baffle 3's side surface is installed with first fixed grinding piece 5, second baffle 4's side surface is installed with second fixed grinding piece 6, be provided with main shaft 7 in body 1, one end of main shaft 7 is provided with dynamic disc, dynamic disc sets up in grinding cavity, and dynamic disc is located between first fixed grinding piece 5 and second fixed grinding piece 6, be provided with with first baffle 3 fixed first communication pipe 8 in body 1, be provided with with first communication pipe 8 connected first pulp inlet pipe 9 on body 1, and first communication pipe 8 is linked together with grinding cavity, be provided with with second baffle 4 fixed second communication pipe 10 in body 1, be provided with with second communication pipe 10 connected second pulp inlet pipe 11 on body 1, and second communication pipe 10 is linked together with grinding cavity, be provided with pulp outlet pipe 12 on refiner chamber 2, dynamic disc includes with main shaft 7 fixed connecting plate 13, the both sides symmetrical installation of connecting plate 3 is provided with dynamic grinding piece 14, be provided with a plurality of first fixed bolt 15 on first baffle 3, first fixed grinding piece 5 and first baffle 3 are connected through first fixed bolt 15, be provided with a plurality of second fixed bolt 16 on second baffle 4, second fixed grinding piece 6 and second baffle 4 are connected through second fixed bolt 16, two dynamic grinding pieces 14 are all provided with a plurality of third fixed bolt 17, dynamic grinding piece 14 and connecting plate 3 are connected through third fixed bolt 17, can be transported paper pulp from grinding cavity two sides respectively through first pulp inlet pipe 9 and first communication pipe 8 and second pulp inlet pipe 11 and second communication pipe 10, to ensure that the pressure between two pairs of grinding pieces is same, the paper pulp after polishing enters refiner chamber 2 and is discharged through pulp outlet pipe 12.

[0019] Example two

[0020] As Figure 1 shown, on the basis of the utility model embodiment one: dynamic grinding piece 14 surface is provided with a plurality of polishing teeth, has improved beating efficiency and quality, first fixed grinding piece 5, second fixed grinding piece 6 and dynamic grinding piece 14 all adopt high chromium alloy steel and are made, through such setting, guarantee the wear resistance, corrosion resistance and strength of first fixed grinding piece 5, second fixed grinding piece 6 and dynamic grinding piece 14, guarantee the service life.

Claims

1. A double-disc refiner, comprising a body (1), wherein a refining chamber (2) is provided inside the body (1), characterized in that: The machine body (1) is fixed with a first baffle (3) and a second baffle (4). A grinding cavity is provided between the first baffle (3) and the second baffle (4). The grinding cavity is connected to the grinding chamber (2). A first fixed grinding disc (5) is installed on the side of the first baffle (3), and a second fixed grinding disc (6) is installed on the side of the second baffle (4). A main shaft (7) is provided inside the machine body (1). A moving disc is provided at one end of the main shaft (7). The moving disc is located inside the grinding cavity and is positioned between the first fixed grinding disc (5) and the second fixed grinding disc (6). The machine body (1) is provided with a first connecting pipe (8) fixed to the first baffle (3). The machine body (1) is provided with a first slurry inlet pipe (9) connected to the first connecting pipe (8), and the first connecting pipe (8) is connected to the grinding chamber. The machine body (1) is provided with a second connecting pipe (10) fixed to the second baffle (4). The machine body (1) is provided with a second slurry inlet pipe (11) connected to the second connecting pipe (10), and the second connecting pipe (10) is connected to the grinding chamber. The grinding chamber (2) is provided with a slurry outlet pipe (12).

2. The double-disc refiner according to claim 1, characterized in that: The moving plate includes a connecting plate (13) fixed to the main shaft (7), and moving grinding discs (14) are symmetrically installed on both sides of the connecting plate (13).

3. The double-disc refiner according to claim 2, characterized in that: The surface of the moving grinding disc (14) is provided with multiple grinding teeth.

4. The double-disc refiner according to claim 2, characterized in that: The first baffle (3) is provided with a plurality of first fixing bolts (15), and the first fixed grinding plate (5) is connected to the first baffle (3) by the first fixing bolts (15). The second baffle (4) is provided with a plurality of second fixing bolts (16), and the second fixed grinding plate (6) is connected to the second baffle (4) by the second fixing bolts (16). Both of the moving grinding plates (14) are provided with a plurality of third fixing bolts (17), and the moving grinding plates (14) are connected to the connecting plate (13) by the third fixing bolts (17).

5. The double-disc refiner according to claim 4, characterized in that: The first fixed grinding plate (5), the second fixed grinding plate (6), and the moving grinding plate (14) are all made of high chromium alloy steel.

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