Coarse and fine flow dividing type powerful crushing and grinding machine for old sand regeneration

Abstract

The utility model discloses a coarse and fine shunting type strong crushing grinding machine for old sand regeneration, which comprises a box body (1), a coarse tooth crushing wheel set (2) and a fine tooth crushing wheel set (3), the coarse tooth crushing wheel set (2) and the fine tooth crushing wheel set (3) are arranged in the box body (1), a feeding channel (4) and a discharging channel (5) are arranged on the box body (1), the feeding channel (4) is positioned above the fine tooth crushing wheel set (3), and the discharging channel (5) is positioned above the fine tooth crushing wheel set (3). The interior of the feeding channel (4) is divided into an upper channel and a lower channel through an inclined plate (6) with filtering holes, and the upper channel of the feeding channel is connected with an inclined material guiding channel (7). The sand crushing device is ingenious in structure, old sand can be crushed step by step through the cooperation of the coarse tooth crushing wheel set and the fine tooth crushing wheel set, and the crushing effect is good; by separating coarse and fine old sand in advance, equipment can be used more reasonably, the treatment capacity of the equipment is greatly improved, energy is saved, and the total grinding time is shortened.

Description

Technical Field

[0001] The utility model belongs to the field of crushers, in particular to a powerful crushing and grinding machine for regenerating coarse and fine flow type old sand. Background Art

[0002] With the advancement of science and technology, the demand for castings in industrial production is increasing, and the quality requirements for castings are getting higher and higher. As a raw material with a large amount of usage, the amount of castings and the requirements for castings increase, the amount of old sand produced is increasing. If these sands are directly discarded, it will not only cause environmental pollution, but also waste a lot of recyclable resources. Therefore, various enterprises usually choose old sand regeneration equipment to recycle old sand. In the process of processing old sand, it is necessary to remove the film from the old sand to meet the requirements of regeneration. There are many ways to remove the film. The main way is to grind the old sand, and the old sand is rubbed against each other by grinding, and finally the effect of demolding is achieved. The existing patent CN 205270723 U discloses a three-axis old sand grinding and regeneration machine, and the patent CN 219464682 U discloses a multi-wheel grinding machine for regenerating old sand in casting. The above-mentioned existing technical solutions are old sand crushing and regeneration machines: when such devices are working, when the old sand blocks are large, it is easy to jam the equipment, which affects the production efficiency, and the crushing effect is not good enough, and it cannot meet the high recycling requirements. Utility Model Content

[0003] The utility model aims to provide a powerful crushing and grinding machine for regenerating old sand with coarse and fine separation, which can make production capacity be used more reasonably and save energy.

[0004] The utility model is realized by the following technical solutions:

[0005] A powerful crushing and grinding machine for coarse and fine flow type regeneration of old sand comprises a housing and a coarse-tooth crushing wheel group and a fine-tooth crushing wheel group arranged in sequence from front to back in the housing, wherein a feed channel and a discharge channel are arranged on the housing, wherein the feed channel is located above the fine-tooth crushing wheel group, and the feed channel is divided into an upper channel and a lower channel by an inclined plate with filter holes in the feed channel, wherein the inclined plate is inclined downwardly arranged in the direction where the coarse-tooth crushing wheel group is located, and an inclined material guide channel is connected to the upper channel of the feed channel, the bottom of which extends to the top of the coarse-tooth crushing wheel group and is adapted to the extension line of the inclined plate, and the discharge channel is located behind the fine-tooth crushing wheel group.

[0006] Preferably, the inclined plate is connected to an oscillating unit to generate vibration on the inclined plate to help divert the material.

[0007] Preferably, an air inlet chamber is provided at the bottom of the box body and below the coarse-tooth crushing wheel set and the fine-tooth crushing wheel set to allow the material in the box body to boil and move.

[0008] Preferably, the inclined material guiding channel is interconnected with a second feed channel located above the coarse-toothed crushing wheel group, so that the material is fed into the coarse-toothed crushing wheel group through the second feed channel for crushing.

[0009] The beneficial effects of the utility model are:

[0010] The powerful crushing and grinding machine for regenerating old sand with coarse and fine separation has an ingenious structure. By arranging the coarse-tooth crushing wheel group and the fine-tooth crushing wheel group in sequence from front to back in the casing, the old sand can be ground step by step. The grinding effect is good, the adaptability to the size of the old sand blocks is good, and the grinding speed is fast. By separating the coarse and fine old sand in advance, allowing the fine sand to directly fall into the fine-tooth crushing wheel group for crushing and grinding, and allowing the coarse sand to fall into the coarse-tooth crushing wheel group for crushing and grinding, the equipment can be used more reasonably, the processing capacity of the equipment is greatly improved, energy is saved, and the overall grinding time is reduced. It has strong practicality and is worthy of promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention will be described by way of examples with reference to the accompanying drawings, in which:

[0012] Figure 1 It is a schematic structural diagram of a powerful crushing and grinding machine for regeneration of coarse and fine flow used sand according to an embodiment of the utility model. DETAILED DESCRIPTION

[0013] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0014] Any feature disclosed in this specification (including any additional claims, abstract and drawings), unless otherwise stated, may be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0015] like Figure 1 As shown, a powerful crushing and grinding machine for coarse and fine flow type regeneration of old sand comprises a housing 1 and a coarse-tooth crushing wheel group 2 and a fine-tooth crushing wheel group 3 arranged in sequence from front to back in the housing 1, a feed channel 4 and a discharge channel 5 are provided on the housing 1, the feed channel 4 is located above the fine-tooth crushing wheel group 3, the feed channel 4 is divided into an upper channel and a lower channel by an inclined plate 6 with filter holes in the feed channel 4, the inclined plate 6 is inclined downwardly arranged in the direction of the coarse-tooth crushing wheel group 2, the upper channel of the feed channel 4 is connected with an inclined material guide channel 7 which extends to the bottom above the coarse-tooth crushing wheel group 2 and is adapted to the extension line of the inclined plate 6, and the discharge channel 5 is located behind the fine-tooth crushing wheel group 3.

[0016] The inclined plate 6 is connected to an oscillating unit (not shown) to generate vibration on the inclined plate 6 to help material diversion.

[0017] An air inlet chamber 8 is also provided at the bottom of the box body 1 and below the coarse-tooth crushing wheel set 2 and the fine-tooth crushing wheel set 3 to allow the material in the box body 1 to boil and move.

[0018] The inclined material guiding channel 7 is communicated with a second material feeding channel 9 located above the coarse-toothed crushing wheel set 2, so that the material is fed into the coarse-toothed crushing wheel set 2 through the second material feeding channel for crushing.

[0019] Working process:

[0020] The gears in the coarse-tooth crushing wheel group 2 and the fine-tooth crushing wheel group 3 rotate in the same direction, gradually crushing and grinding the old sand material into fine particles and sending them forward in sequence until they are sent to the discharge channel 5;

[0021] The old sand enters from the feed channel 4 and is diverted by the inclined plate 6. The coarse sand blocks are sent to the coarse-tooth crushing wheel group 2 from the inclined guide channel 7 for crushing and grinding. The fine sand blocks directly pass through the filter holes on the inclined plate 6 under the action of gravity and fall into the fine-tooth crushing wheel group 3 for crushing and grinding. This can reduce the workload of the coarse-tooth crushing wheel group 2, avoid duplication of work, save energy, and improve crushing efficiency.

[0022] The powerful crushing and grinding machine for regenerating old sand with coarse and fine separation has an ingenious structure. By arranging the coarse-tooth crushing wheel group and the fine-tooth crushing wheel group in sequence from front to back in the casing, the old sand can be ground step by step. The grinding effect is good, the adaptability to the size of the old sand blocks is good, and the grinding speed is fast. By separating the coarse and fine old sand in advance, allowing the fine sand to directly fall into the fine-tooth crushing wheel group for crushing and grinding, and allowing the coarse sand to fall into the coarse-tooth crushing wheel group for crushing and grinding, the equipment can be used more reasonably, the processing capacity of the equipment is greatly improved, energy is saved, and the overall grinding time is reduced. It has strong practicality and is worthy of promotion.

[0023] The present invention is not limited to the above-mentioned specific implementation modes, but extends to any new features or any new combination disclosed in this specification, as well as any new method or process steps or any new combination disclosed.

Claims

1. A powerful crushing and grinding machine for coarse and fine flow type used sand regeneration, characterized by: The invention comprises a housing (1) and a coarse-tooth crushing wheel group (2) and a fine-tooth crushing wheel group (3) arranged in sequence from front to back in the housing (1); a feed channel (4) and a discharge channel (5) are provided on the housing (1); the feed channel (4) is located above the fine-tooth crushing wheel group (3); and in the feed channel (4), the feed channel (4) is divided into an upper channel and a lower channel by an inclined plate (6) with filter holes; the inclined plate (6) is arranged to be inclined downward in the direction where the coarse-tooth crushing wheel group (2) is located; the upper channel of the feed channel is connected to an inclined material guide channel (7) extending to the top of the coarse-tooth crushing wheel group and adapted to the extension line of the inclined plate (6); and the discharge channel (5) is located behind the fine-tooth crushing wheel group (3).

2. The powerful crushing and grinding machine for regeneration of used sand of coarse and fine flow type according to claim 1 is characterized in that: The inclined plate (6) is connected to an oscillating unit.

3. The powerful crushing and grinding machine for regeneration of used sand of coarse and fine flow type according to claim 1 is characterized in that: An air inlet chamber (8) is also provided at the bottom of the box body (1) and below the coarse-tooth crushing wheel group (2) and the fine-tooth crushing wheel group (3).

4. The powerful crushing and grinding machine for regeneration of used sand of coarse and fine flow type according to claim 1 is characterized in that: The inclined material guiding channel (7) is communicated with a second material feeding channel (9) located above the coarse-toothed crushing wheel group (2).

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