Concrete gravel crushing device

Abstract

The utility model provides a concrete gravel crushing device which comprises a box body, the top and the bottom of the box body are provided with a feeding hopper and a discharging opening respectively, and a crushing wheel is arranged in the box body and used for crushing concrete gravel; the dustproof unit comprises a sealing plate rotationally arranged at the end, located in the box body, of the feeding hopper and an atomization piece arranged in the box body and used for dust falling, the atomization piece is located on the upper side of the crushing wheel, a discharging plate forming an included angle with a bottom plate of the feeding hopper is arranged at the end, located in the box body, of the feeding hopper, and the movable end of the sealing plate abuts against the discharging plate; the sealing plate is used for preventing dust leakage; the filtering unit is arranged in the box body, is positioned on the lower side of the crushing wheel, and is used for filtering uncrushed concrete gravel; and a certain angle is formed between the discharging plate and the bottom plate of the feeding hopper, so that concrete gravels on the discharging plate do not stay and directly fall into the box body to be smashed, and the situation that when the concrete gravels enter the box body from the feeding hopper, part of the gravels are left at the end of the feeding hopper, and closing of the sealing plate is affected is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a broken machine technical field especially relates to a concrete gravel crushing device. BACKGROUND

[0002] During the construction, a large amount of concrete and gravel materials are usually needed, and the concrete and gravel materials are generally crushed by a crusher before construction.

[0003] A concrete gravel crusher is disclosed in Chinese Utility Model No. CN217221873U, which comprises a crushing box, a feed inlet is arranged on the top of the crushing box, a discharge outlet is arranged on one side of the lower part of the crushing box, two crushing tooth rollers are rotatably connected in the crushing box, the two crushing tooth rollers are arranged horizontally and in parallel, a driving mechanism for driving the two crushing tooth rollers to rotate towards each other is arranged on the crushing box, a dust cover is arranged on the feed inlet, an installation opening is formed in one side wall of the dust cover, a feed pipe that can be inclined downward for feeding is installed in the installation opening, the bottom opening of the feed pipe is arranged inside the dust cover and is perpendicular to the ground, a sealing plate is hingedly connected to the inner top wall of the dust cover, and the sealing plate is lapped on the bottom opening of the feed pipe and seals the bottom opening of the feed pipe.

[0004] However, since the above-mentioned device is sealed by the gravity of the sealing plate itself, when concrete and gravel are left at the port of the feed pipe, the closure of the sealing plate will be intervened to form an opening, and the dust in the crusher will spew out from the opening, causing environmental pollution. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies in the prior art, the utility model provides a concrete gravel crushing device, which solves the problem of dust spewing out from the unsealed opening in the crusher in the prior art, causing environmental pollution.

[0006] According to the embodiment of the utility model, a concrete gravel crushing device comprises a box body, a feed hopper and a discharge port are arranged at the top and bottom of the box body respectively, a crushing wheel is arranged inside the box body, and the crushing wheel is used for crushing concrete and gravel; a dust prevention unit comprises a sealing plate rotatably arranged at one end of the feed hopper inside the box body and an atomizing piece arranged inside the box body for dust reduction, the atomizing piece is located above the crushing wheel, one end of the feed hopper inside the box body is provided with a discharge plate forming an angle with the bottom plate of the feed hopper, the movable end of the sealing plate abuts against the discharge plate, and the sealing plate is used for preventing dust leakage; a filtering unit is arranged inside the box body and located below the crushing wheel, and is used for filtering the concrete and gravel that have not been crushed.

[0007] Compared with the prior art, the utility model have following beneficial effect: through setting one piece of inclined discharge plate in one end of feeding hopper and cooperating with sealing plate, dust in box body is blocked from spreading to air, and influence on surrounding environment is avoided, discharge plate and feeding hopper bottom plate form certain angle, so that concrete gravel on discharge plate does not stay and directly falls in box body and is crushed, when concrete gravel enters box body from feeding hopper, part of gravel is left in feeding hopper end, so that the closure of sealing plate is influenced, leading to sealing plate sealing failure, and under the setting of atomizing piece, dust in box body is water mist dust fall, and the spreading of dust is further reduced.

[0008] Preferably, the sealing plate is hinged in the box body, and a torsional spring is arranged at the hinged end.

[0009] Preferably, the atomizing piece comprises a guide pipe arranged in the box body and a water guide pipe connected with the guide pipe, the water guide pipe is used for connecting an external water supply device, and a plurality of groups of atomizing nozzles are uniformly distributed on the guide pipe.

[0010] Preferably, the filter unit comprises a first sieve plate arranged in the box body and inclined, and a movable filter, the movable filter is arranged at the lower side of the first sieve plate, and a channel for concrete gravel to fall is formed between one end of the first sieve plate and the inner wall of the box body.

[0011] Preferably, a slag discharge port is arranged on the box body, the slag discharge port is located on the opposite side of the discharge port, and is arranged between the discharge port and the first sieve plate.

[0012] Preferably, the movable filter comprises a second sieve plate rotatably arranged at the slag discharge port, a receiving groove is arranged in the box body and located above the slag discharge port, the movable end of the second sieve plate is arranged in the receiving groove, a plurality of springs are uniformly distributed in the receiving groove, and the movable end of the second sieve plate is located above each spring and abuts against each spring.

[0013] Preferably, a reinforcing rib is arranged at the connection between the box body and the feeding hopper. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is a perspective view of the utility model embodiment.

[0015] Fig. 2 It is a sectional view of the utility model embodiment.

[0016] Fig. 3 It is a structure schematic view of the dustproof unit in the utility model embodiment.

[0017] In the above figure: 1, box; 101, discharge port; 102, slag discharge port; 103, channel; 104, first sieve plate; 105, reinforcing rib; 106, storage groove; 2, feed hopper; 201, discharge plate; 3, crushing wheel; 4, water pipe; 401, conduit; 402, atomizing nozzle; 5, sealing plate; 501, torsional spring; 6, second sieve plate; 601, spring. DETAILED DESCRIPTION

[0018] The technical solutions in the utility model are further described below with reference to the drawings and examples.

[0019] As Figs. 1 to 3 shown in the utility model embodiment, a concrete aggregate crushing device is provided, which comprises a box 1, the top and bottom of the box 1 are respectively provided with a feed hopper 2 and a discharge port 101, a crushing wheel 3 is arranged in the box 1, and the crushing wheel 3 is used for crushing concrete aggregate; a dust prevention unit comprises a sealing plate 5 rotatably arranged at one end of the feed hopper 2 in the box 1 and an atomizing element arranged in the box 1 and used for dust reduction, the atomizing element is located on the upper side of the crushing wheel 3, one end of the feed hopper 2 in the box 1 is provided with a discharge plate 201 forming an included angle with the bottom plate of the feed hopper 2, the movable end of the sealing plate 5 abuts against the discharge plate 201, and the sealing plate 5 is used for preventing dust from leaking out; a filtering unit is arranged in the box 1 and located on the lower side of the crushing wheel 3 and is used for filtering uncrushed concrete aggregate.

[0020] The detailed working process of the embodiment is as follows: concrete aggregate enters the box 1 from the feed hopper 2, the crushing wheel 3 in the box 1 is in transmission connection with an external driving source, and the crushing wheel 3 is driven to rotate by the driving source to crush the concrete aggregate. By arranging an inclined discharge plate 201 at one end of the feed hopper 2 and cooperating with the sealing plate 5, the dust in the box 1 is prevented from diffusing into the air, thereby avoiding affecting the surrounding environment; the discharge plate 201 forms a certain angle with the bottom plate of the feed hopper 2, so that the inclination of the discharge plate 201 is greater than that of the bottom plate of the feed hopper 2, the concrete aggregate on the discharge plate 201 is ensured not to stay and directly fall into the box 1 for crushing, so that the sealing plate 5 can tightly adhere to the discharge plate 201 when closed, thereby isolating dust, and the dust in the box 1 is subjected to water mist dust reduction under the arrangement of the atomizing element, thereby further reducing the diffusion of dust, and the filtering unit screens the uncrushed concrete aggregate, so that the uncrushed concrete aggregate is separated from the crushed concrete aggregate, thereby ensuring the crushing quality.

[0021] As Fig. 3 shown, the sealing plate 5 is hinged in the box 1, and the hinged end is provided with a torsional spring 501.

[0022] The detailed working process of the embodiment is as follows: the concrete gravel is poured into the feed hopper 2 and falls into the box body 1 under the action of gravity, and then the sealing plate 5 is closed, the torsion spring 501 provides a rebound force for the sealing plate 5, so that the sealing plate 5 can be quickly closed, and the rebound of the sealing plate 5 caused by the collision with the discharge plate 201 when the sealing plate 5 is closed can be avoided, thereby preventing dust leakage.

[0023] As shown in Fig. 2 As shown in Fig. 3 The atomizing member includes a guide pipe 401 arranged in the box body 1 and a water guide pipe 4 connected with the guide pipe 401, the water guide pipe 4 is used for connecting an external water supply device, and the guide pipe 401 is uniformly provided with a plurality of groups of atomizing nozzles 402.

[0024] The detailed working process of the embodiment is as follows: the water guide pipe 4 is connected with the external water supply device, so as to ensure the atomizing effect of the plurality of groups of atomizing nozzles 402, a large amount of dust is generated when the concrete gravel is crushed in the box body 1, the atomizing nozzles 402 atomize water into tiny water droplets through high pressure to form fine water mist. These tiny mist droplets can be suspended in the air for a long time and diffuse into the box body 1 along with the airflow.

[0025] As shown in Fig. 2 The filter unit includes a first sieve plate 104 arranged in the box body 1 and inclined and a movable filter member, the movable filter member is located below the first sieve plate 104, and a channel 103 for the concrete gravel to fall is formed between one end of the first sieve plate 104 and the inner wall of the box body 1.

[0026] The detailed working process of the embodiment is as follows: the first sieve plate 104 is located below the crushing wheel 3, one end of the first sieve plate 104 forming the channel 103 is lower than the other end, so that the concrete gravel falling from the crushing wheel 3 after crushing falls on the first sieve plate 104, the fine particles directly fall into the movable filter member from the first sieve plate 104, and then fall into the discharge port 101 from the movable filter member, and the unqualified particles after crushing fall into the first sieve plate 104, and then roll to the channel 103 from the first sieve plate 104 and fall on the movable filter member from the channel 103.

[0027] As shown in Fig. 2 The box body 1 is provided with a slag discharge port 102, the slag discharge port 102 is located on the opposite side of the discharge port 101 and between the discharge port 101 and the first sieve plate 104.

[0028] As shown in Fig. 2 The movable filter member includes a second sieve plate 6 rotatably arranged at the slag discharge port 102, the box body 1 is provided with a receiving groove 106 above the slag discharge port 102, the movable end of the second sieve plate 6 is located in the receiving groove 106, and a plurality of springs 601 are uniformly arranged in the receiving groove 106, the movable end of the second sieve plate 6 is located above and abuts against each spring 601.

[0029] The detailed working process of the embodiment is that one end of the second sieve plate 6 is rotatably arranged at the slag discharge port 102, and the other end is located below the channel 103, and the end of the second sieve plate 6 located at the slag discharge port 102 is lower than the end close to the channel 103, the particles falling from the channel 103 fall on the second sieve plate 6, and then roll on the second sieve plate 6 to the slag discharge port 102 and are discharged from the slag discharge port 102; under the arrangement of the plurality of springs 601, the particles falling from the channel 103 fall on the second sieve plate 6, and when the particles hit the second sieve plate 6, the plurality of springs 601 vibrate, thereby vibrating the second sieve plate 6, avoiding the particles staying on the second sieve plate 6 and interfering with the second sieve plate 6.

[0030] As shown in Fig. 3 Fig. 3 The reinforcing rib 105 is arranged at the connection between the box body 1 and the feed hopper 2.

[0031] The detailed working process of the embodiment is that under the arrangement of the reinforcing rib 105, the strength of the connection between the box body 1 and the feed hopper 2 is improved.

[0032] The implementation principle of the embodiment is that first, the crushing wheel 3 is driven to rotate, and then the concrete gravel to be crushed is poured into the feed hopper 2, the concrete gravel enters the box body 1 from the feed hopper 2 through the discharge plate 201, falls into the crushing wheel 3 for crushing, the crushed concrete gravel falls into the first sieve plate 104 and the second sieve plate 6 in turn, and is screened through the first sieve plate 104 and the second sieve plate 6, the qualified concrete gravel after crushing falls into the discharge port 101 through the first sieve plate 104 and the second sieve plate 6, and the unqualified concrete gravel falls from the slag discharge port 102 through the second sieve plate 6.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the present application, and all should be covered in the scope of the claims of the present application.

Claims

1. A concrete aggregate breaking device, characterized by, The utility model relates to a concrete aggregate crushing device, which comprises: a box (1) provided with a feeding hopper (2) and a discharging port (101) at the top and bottom respectively, a crushing wheel (3) arranged inside the box (1) for crushing concrete aggregate; a dustproof unit comprising a sealing plate (5) rotatably arranged at one end of the feeding hopper (2) inside the box (1) and an atomizing member arranged inside the box (1) for dust reduction, the atomizing member being located above the crushing wheel (3), one end of the feeding hopper (2) inside the box (1) being provided with a discharging plate (201) forming an angle with the bottom plate of the feeding hopper (2), the movable end of the sealing plate (5) abutting against the discharging plate (201), the sealing plate (5) being used for preventing dust leakage; a filtering unit arranged inside the box (1) and located below the crushing wheel (3) for filtering uncrushed concrete aggregate.

2. The concrete aggregate crushing device of claim 1, wherein: The sealing plate (5) is hinged in the box (1) and the hinged end is provided with a torsional spring (501).

3. The concrete aggregate crushing device of claim 1, wherein: The atomizing member comprises a conduit (401) arranged in the box (1) and a water guide pipe (4) connected with the conduit (401), the water guide pipe (4) being used for connecting an external water supply device, and the conduit (401) is uniformly provided with a plurality of groups of atomizing nozzles (402).

4. The concrete aggregate crushing device of claim 1, wherein: The filtering unit comprises a first sieve plate (104) arranged obliquely inside the box (1) and a movable filtering member, the movable filtering member being located below the first sieve plate (104), wherein one end of the first sieve plate (104) forms a channel (103) for concrete aggregate falling between the first sieve plate (104) and the inner wall of the box (1).

5. The concrete aggregate crushing device of claim 4, wherein: The box (1) is provided with a slag discharging port (102) opposite to the discharging port (101) and between the discharging port (101) and the first sieve plate (104).

6. The concrete aggregate crushing device of claim 5, wherein: The movable filtering member comprises a second sieve plate (6) rotatably arranged at the slag discharging port (102), the box (1) is provided with a receiving groove (106) above the slag discharging port (102), the movable end of the second sieve plate (6) is located in the receiving groove (106), and the receiving groove (106) is uniformly provided with a plurality of springs (601), the movable end of the second sieve plate (6) is located above each spring (601) and abuts against each other.

7. The concrete aggregate crushing device of claim 1, wherein: The box (1) and the feeding hopper (2) are provided with a reinforcing rib (105) at the connection position.

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