CN216843488U - Composite material compression pipe for feeder - Google Patents

Abstract

The utility model discloses a combined material compression pipe for feeder. It is including can closing last lamellar body and the lower lamellar body that forms outer taper pipe, go up the lamellar body including the last supporting layer as outside supporting subject and compound last wear-resistant material layer at the internal surface of last supporting layer, lower lamellar body is including the lower supporting layer as outside supporting subject and compound lower wear-resistant material layer at the internal surface of lower supporting layer, it all has the slot face that is used for preventing the raw materials and skids on the inner wall of wear-resistant material layer and lower wear-resistant material layer to go up, go up the lamellar body and still all arrange the hole that leaks that radially link up the outer taper pipe inside and outside with lower lamellar body. After adopting foretell structure, not only conveniently carry out the casting moulding to supporting layer and wear-resisting material layer, reduce the manufacturing degree of difficulty, saved manufacturing cost, improved the fail safe nature of use moreover, prolonged life.

Description

Composite material compression pipe for feeder

Technical Field

The utility model relates to a part structure of using in wood-based plate or the papermaking trade, specifically speaking are a combined material compression pipe for feeder for among the charge-in system.

Background

In the pulping working section of the artificial board or paper making industry, a feeder is adopted to uniformly feed raw materials into a digester with pressure; the feeder has the functions of extruding the raw materials to form a compact cork, and sending the compact cork into the digester, wherein the cork can prevent steam in the digester from leaking from an inlet of the raw materials, and excessive water or liquid medicine in the raw materials can be discharged in the extruding process, so that the consumption of steam and the waste of liquid medicine in the cooking process are reduced.

The compression pipe commonly used at present has two structures, the first one adopts an up-down split conical structure, and the inner wall is provided with a blocking groove or adopts an installation type blocking rib. In order to discharge redundant liquid medicine or water in the raw materials from the compression pipe smoothly, the wall of the compression pipe is provided with water leakage holes, the raw materials generate strong friction with the inner wall of the compression pipe in the extrusion process of the compression pipe, the requirement on the wear resistance of the compression pipe material is high, and the compression pipe is made of expensive stainless steel materials.

This structure has the following disadvantages: (1) the inner cavity is difficult to process, and the rib mounting mode is more difficult; (2) the inner cavity is difficult to repair after being worn, and the cost of the whole replacement is high; (3) the inner cavity in the rib mounting mode is more difficult to repair after being worn; (4) adopt the installation rib mode, its rib can have the fracture, gets into the risk of host computer: (5) the stainless wear resistance can not meet the use requirement.

The second one adopts the structure form of replacing the inner lining type of the compression pipe of the replaceable inner lining type of the feeder as patent No. 201120381107.7, it includes a conical shell, there is a detachable conical liner pipe in the shell, the liner pipe is connected with shell with the screw, transmit the torque with the key, block the structure such as the ditch groove or installation type and block the rib and make on the liner pipe, the shell adopts the ordinary material, the liner pipe chooses the stainless steel, this structure can change the liner pipe alone after the liner pipe is worn out, only need to change the corresponding liner pipe when the compression ratio changes, the adaptability of the raw materials, and the disadvantage of this kind of structure is: (1) the structural design is complex, the material cost is reduced, but the processing cost is increased, and the production cost is not saved, (2) the number of parts is increased, and the number of fault points is increased; (3) the matching of the shell and the liner tube has conicity, and the processing is very difficult.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to provide a combined material compression pipe for feeder simple structure, manufacturing are easy, the wearability is good and low cost.

In order to solve the technical problem, the utility model discloses a combined material compression pipe for feeder, including can be to the last lamellar body and the lower lamellar body that form outer taper pipe to closing, go up the lamellar body including the last supporting layer as outside support main part and compound last wear-resistant material layer at the internal surface of last supporting layer, the lower lamellar body is including the lower supporting layer as outside support main part and compound lower wear-resistant material layer at the internal surface of lower supporting layer, all have the slot face that is used for preventing the raw materials and skids on going up wear-resistant material layer and lower wear-resistant material layer's the inner wall, go up the lamellar body and still all arrange the outer hole that leaks of radially lining up outer taper pipe down with lower lamellar body.

Go up the wearing material layer and go up the supporting layer pouring as an organic whole, wearing material layer and lower supporting layer pouring are as an organic whole down.

The edges of the matching surfaces of the upper supporting layer and the lower supporting layer are provided with flanges as connecting flanges, and the upper sheet body and the lower sheet body can be fixedly installed into a whole through the connecting flanges after being matched to form the outer taper pipe.

And end flanges are arranged at the end parts of the upper supporting layer and the lower supporting layer.

Each water leakage hole is composed of an inner hole and an outer hole which is communicated with the inner hole and is positioned on the same axis.

The aperture of the outer hole is larger than that of the inner hole.

The upper supporting layer and the lower supporting layer are both made of cast steel, and the upper wear-resistant material layer and the lower wear-resistant material layer are both made of cast iron materials.

After the structure is adopted, the supporting layer and the wear-resistant material layer can be conveniently cast and molded, the processing and manufacturing difficulty is reduced, the processing and manufacturing cost is saved, no part exists in the inner cavity of the outer taper pipe formed by folding and mounting the wear-resistant material layer, the problem that the part in the traditional feeding pipe falls off due to the part is avoided, the safety and the reliability of use are improved, moreover, the structural design of the wear-resistant layer cast with the supporting layer into a whole has good overall performance, can bear strong friction on the inner wall of the compression pipe when the raw material is compressed and moves forward, has enough external supporting strength and toughness, prolongs the service life, in addition, the structural design of the groove surface on the wear-resistant layer can prevent the raw material from slipping in the compression pipe, and the water leakage holes are formed to ensure that redundant liquid medicine or water in the raw material can be smoothly discharged from the pressure shrinkage pipe, the use effect is ensured.

Drawings

Fig. 1 is a schematic longitudinal sectional view of a composite material compression pipe for a feeder according to the present invention;

fig. 2 is a schematic diagram of a longitudinal section structure of the composite material compression pipe for the feeder of the present invention.

Detailed Description

The composite material compression pipe for a feeder according to the present invention will be described in further detail with reference to the accompanying drawings and embodiments.

As shown in the figure, the composite material compression pipe for the feeder of the utility model comprises an upper sheet body 1 and a lower sheet body 2, wherein the upper sheet body 1 and the lower sheet body 2 are half-cone tubular structures which are split, the upper sheet body 1 and the lower sheet body 2 can be closed to form an outer cone pipe as shown in figure 1, the upper sheet body 1 comprises an upper support layer 3 as an external support main body and an upper wear-resistant material layer 4 compounded on the inner surface of the upper support layer, the lower sheet body 2 comprises a lower support layer 5 as an external support main body and a lower wear-resistant material layer 6 compounded on the inner surface of the lower support layer, thereby reducing the wear-resistant material consumption and the cost, wherein, the upper support layer 3 and the lower support layer 5 are both made of cast steel, preferably made of ZG270-500 material, so that the composite material has high enough strength, the upper wear-resistant material layer 4 and the lower wear-resistant material layer 6 are both made of cast iron material, preferably made of high alloy cast iron material, during manufacturing, after the upper wear-resistant material layer is manufactured, cast steel material and the upper wear-resistant material layer are poured to form an upper supporting layer, after the lower wear-resistant material layer is manufactured, cast steel material and the lower wear-resistant material layer are poured to form a lower supporting layer, turned-over flanges which are turned over outwards are poured on the edges of the matching surfaces of the upper supporting layer 3 and the lower supporting layer 5 to serve as connecting flanges 10 (shown in figure 2), an outer conical pipe is formed by matching the upper sheet body 1 and the lower sheet body 2 and then can be fixedly installed into a whole through the connecting flanges, end flanges 11 are poured on the end parts of the upper supporting layer 3 and the lower supporting layer 5, the left end and the right end shown in figure 1 are the end flanges, groove surfaces 8 for preventing raw materials from slipping are arranged on the inner walls of the upper wear-resistant material layer 4 and the lower wear-resistant material layer 6, the groove surfaces 8 can be directly formed through a die in the manufacturing process or can be formed by later-stage cutting, the groove surface is as shown in FIG. 2, and the upper sheet body 1 and the lower sheet body 2 are provided with water leakage holes 9 which radially penetrate through the outer cone tube to smoothly discharge redundant liquid medicine or water in the raw materials

Furtherly again, the hole that leaks on the last lamellar body 1 comprises the hole of arranging on last wearing material layer 4 and the outer hole of arranging on the last supporting layer 3 that link up with the hole of arranging on last wearing material layer 4, the outer hole of arranging on last supporting layer 3 and the hole one-to-one on last wearing material layer 4 and corresponding hole and outer hole are in same axis, the same structure is adopted with hole and outer hole on last lamellar body 1 to last hole and the outer hole of lower lamellar body, unnecessary liquid medicine or moisture exhaust effect is better in the raw materials.

Claims (7)

1. The utility model provides a combined material compression pipe for feeder, includes can to closing last lamellar body (1) and lower lamellar body (2) that form outer taper pipe, its characterized in that: go up lamellar body (1) including last supporting layer (3) as outside supporting body and compound last abrasive material layer (4) at the internal surface of last supporting layer, lamellar body (2) are including lower supporting layer (5) as outside supporting body and compound lower abrasive material layer (6) at the internal surface of lower supporting layer down, it all has slot face (8) that are used for preventing the raw materials and skid to go up abrasive material layer (4) and on the inner wall of lower abrasive material layer (6), it radially link up outer awl intraductal outer hole of leaking (9) still all to arrange with lower lamellar body (2) to go up lamellar body (1).

2. The composite compression tube for a feeder of claim 1, wherein: go up wearing-resistant material layer (4) and go up supporting layer (3) pouring as an organic whole, wearing-resistant material layer (6) are as an organic whole with lower supporting layer (5) pouring.

3. The composite compression tube for a feeder according to claim 1 or 2, wherein: the edge of the butt-joint surface of the upper supporting layer (3) and the lower supporting layer (5) is provided with a flange as a connecting flange (10), and the upper sheet body (1) and the lower sheet body (2) can be fixedly installed into a whole through the connecting flange after being butt-jointed to form an outer taper pipe.

4. The composite compression tube for a feeder of claim 3, wherein: the end parts of the upper supporting layer (3) and the lower supporting layer (5) are provided with end part flanges (11).

5. The composite compression tube for a feeder of claim 2, wherein: each water leakage hole is composed of an inner hole and an outer hole which is communicated with the inner hole and is positioned on the same axis.

6. The composite compression tube for a feeder of claim 5, wherein: the aperture of the outer hole is larger than that of the inner hole.

7. The composite compression tube for a feeder of claim 6, wherein: the upper supporting layer (3) and the lower supporting layer (5) are both made of cast steel materials, and the upper wear-resistant material layer (4) and the lower wear-resistant material layer (6) are both made of cast iron materials.

Images