CN206519261U - The rotary drum of horizontal centrifuge - Google Patents

Abstract

The utility model discloses a rotating drum of a horizontal centrifuge, which belongs to the technical field of centrifuges and aims to provide a rotating drum of a horizontal centrifuge, which has the advantage of reducing the discharge of lighter liquid from the slag discharge port. The main point of the technical solution is that the screw pusher sleeve is located at the slag discharge port, and there are several screw blades whose pitch gradually decreases in a direction away from the screw blade. There are some permeable holes.

Description

Bowl of a horizontal centrifuge

technical field

The utility model relates to the technical field of centrifuges, in particular to a drum of a horizontal centrifuge.

Background technique

The horizontal screw discharge sedimentation centrifuge utilizes the principle of obtaining different sedimentation velocities in the centrifugal force field by using the light, heavy liquid and solid phases with different densities and immiscibility in the mixed liquid to achieve separation and stratification or make the solid in the liquid The purpose of particle settling. This machine can operate automatically and continuously. It is widely used in chemical industry, light industry, food, mineral processing and other industrial sectors. It is also an ideal equipment in environmental protection projects. After the solid phase particles are deposited in the drum, they are discharged from the solid phase outlet at the small end of the drum under the push of the screw. The current centrifuge includes a casing, a rotating drum installed in the casing, and a screw pusher device installed in the rotating drum. The rotating drum is driven to rotate by the rotating drum power unit. The rotating drum includes interconnected cylinders. The body and the frustum of conical cylinder, the end of the cylindrical cylinder is provided with a liquid discharge port, and the end of the frustum of conical cylinder is provided with a solid discharge port.

The Chinese patent with the notification number CN201744407U discloses an improvement of the separation drum part of a horizontal screw discharge sedimentation centrifuge, which is characterized in that the straight section between the separation screw outlet and the light liquid outlet of the drum has one or more annular baffles plate. The annular baffle prevents the light fiber from being discharged with the liquid in the direction of the liquid outlet. Due to the dual effects of the friction between the solid phase of the fiber and the screw blade and the difference in rotational speed between the drum and the screw, it is pushed to the slag discharge port to be discharged, so that the separated liquid , basically does not contain fiber light solid phase materials that are lighter than liquid, and achieves the purpose of separating light fiber light solid phase from the liquid phase. However, when the solid phase is discharged from the slag discharge port, the lighter liquid will also be discharged, which affects the discharge of the light liquid.

Utility model content

The purpose of this utility model is to provide a drum of a horizontal centrifuge, which has the advantage of reducing the discharge of lighter liquid from the slag discharge port.

The above-mentioned technical purpose of the utility model is achieved through the following technical solutions: a drum of a horizontal centrifuge, including an outer drum with a conical fit at one end and a spiral pusher sleeve inside. The outer drum is provided with a small end cover on one side with a tapered shape, and a large end cover on the other end. The bearing on the small end cover is connected with a feed pipe extending into the inside of the screw pusher sleeve. The outer wall of the feed pipe is provided with a connection block fixedly connected with the screw pusher sleeve, and one end of the feed pipe located in the screw pusher sleeve is provided with a distributing chamber, and the distributing chamber is provided with a number of protruding auger pushers. The discharge port of the material sleeve, the screw pusher sleeve is provided with a spiral blade 1, the large end cover is provided with a differential that drives the screw pusher sleeve to rotate, and the two ends of the outer drum A slag outlet and a liquid outlet are provided, and the screw pusher sleeve is located at the slag outlet, and a number of helical pieces two whose pitch gradually decreases away from the helical piece are provided. A number of permeable holes are provided on the outer wall of the material sleeve.

By adopting the above technical scheme, when the differential drives the screw pusher sleeve to rotate, the screw pusher sleeve drives the feed pipe to rotate through the connecting block. At this time, the feed pipe drives the distribution chamber to rotate together, and then the The liquid is thrown out through the discharge port, at this time, the impurities are thrown to the inner wall of the outer drum for accumulation, and the lighter liquid is thrown to the position close to the screw pusher sleeve, and the spiral pieces outside the screw pusher sleeve As the screw pusher sleeve rotates, it will push the impurities to the slag discharge port, and the lighter liquid will be discharged from the liquid discharge port. discharge, and gradually reduce the pitch of the second spiral piece, so that the second spiral piece starts to collect impurities, and then the impurities are gradually transported to the slag discharge port, reducing the accumulation of impurities at the slag discharge port, which is conducive to the discharge of impurities. During the process of discharging impurities by the second spiral piece, the lighter liquid will also be pushed out to the slag discharge port. At this time, the lighter liquid cannot be discharged to the liquid outlet due to the obstruction of the second screw piece. At this time, the second screw piece is approaching There are several permeable holes on the outer wall of the screw pusher sleeve. The opening of the permeable holes facilitates the flow of lighter liquid out of the screw blade 2, and blocks the outflow of impurities, thereby reducing the discharge of lighter liquid from the slag discharge port.

The utility model is further configured as: the spiral pusher sleeve is provided with a retaining net between the first spiral piece and the second spiral piece to prevent impurities from moving away from the slag discharge port.

By adopting the above technical scheme, as the first screw piece gradually pushes the impurities to the slag discharge port, the impurities accumulated at the second place of the screw piece will accumulate. Moving away from the slag discharge port, the retaining screen facilitates the flow of lighter liquids.

The utility model is further set as: the end of the baffle net far away from the spiral pusher sleeve is hinged with a baffle plate extending away from the slag discharge port, and the baffle plate is provided with a device to limit the rotation of the baffle plate to the direction of the spiral pusher sleeve. As for the position limiting column, a tension spring is arranged on the baffle to make the baffle perpendicular to the baffle.

By adopting the above technical scheme, the setting of the baffle reduces the impurities falling to the side of the baffle net away from the slag discharge port, and when the impurities fall on the baffle, the limit column blocks the direction of the baffle to the screw pusher sleeve When the impurity is accumulated on the side of the baffle facing the screw pusher sleeve, as the impurities continue to accumulate, the gravity of the impurities will push the baffle away from the screw pusher sleeve, thereby facilitating the discharge of impurities.

The utility model is further configured as follows: the discharge ports are distributed along the helical line on the wall of the material distributing chamber.

By adopting the above technical scheme, the outlets are distributed along the spiral line on the wall of the material distribution chamber, so that when the material distribution chamber rotates, the liquid is thrown out from multiple directions, and the discharge speed of the liquid is increased.

The utility model is further configured as follows: the inner wall of the slag discharge port is provided with a wear-resistant pad, and the side of the wear-resistant pad facing away from the inner wall of the slag discharge port is provided with a muffler pad.

By adopting the above technical scheme, when the impurities are discharged from the slag discharge port, the wear-resistant pad provided on the inner wall of the slag discharge port reduces the wear of the impurities on the slag discharge port, and the impurities will hit the slag discharge port while the impurities are discharged from the slag discharge port. Noise is generated on the inner wall of the slag outlet, and the noise-absorbing pad reduces the generation of noise.

The utility model is further configured as follows: the outer wall of the wear-resistant pad is provided with an annular limit block extending into the inner wall of the slag discharge port.

By adopting the above technical solution, the ring-shaped limit block increases the connection between the wear-resistant pad and the inner wall of the slag discharge port, reducing the loss of the wear-resistant pad from the slag discharge port during long-term use.

To sum up, the utility model has the following beneficial effects: the first spiral piece and the second spiral piece arranged on the screw pusher sleeve increase the discharge speed of impurities, so that the impurities are quickly discharged from the outer drum, and the second spiral piece The screw pitch gradually decreases in the direction away from the spiral piece, so that the impurities are gradually transported to the slag discharge port, reducing the impurity clogging at the slag discharge port. The liquid flows out from the spiral piece 2, reducing the discharge of lighter liquid from the slag discharge port.

Description of drawings

Fig. 1 is the structural representation of present embodiment;

FIG. 2 is a partially enlarged schematic diagram of part A in FIG. 1 .

Among the figure, 1, outer drum; 11, screw pusher sleeve; 111, spiral sheet one; 112, spiral sheet two; 113, retaining net; 1131, baffle plate; 1132, limit post; 1133, tension spring ; 1121, permeable hole; 12, small end cover; 121, feed pipe; 122, connection block; 123, distribution chamber; 1231, discharge port; 13, large end cover; Slag mouth; 141, wear-resistant pad; 142, muffler pad; 143, annular limit block; 15, liquid outlet.

detailed description

Below in conjunction with accompanying drawing, the utility model is described in further detail.

A drum of a horizontal centrifuge, referring to Figure 1 and Figure 2, includes an outer drum 1 concentrically fitted with a tapered end and a screw pusher sleeve 11 inside it, the outer drum 1 has a tapered One side is provided with a small end cap 12, and the other end is provided with a large end cap 13, the small end cap 12 and the large end cap 13 close the outer drum 1, which is beneficial to the movement of the liquid in the outer drum 1, and the small end cap 12 The upper bearing is connected with a feeding pipe 121 extending into the inside of the screw pushing sleeve 11, and the outer wall of the feeding pipe 121 is provided with a connecting block 122 fixedly connected with the screw pushing sleeve 11, and the connecting block 122 makes the screw pushing sleeve 11 When rotating, the feed pipe 121 is driven to rotate. The end of the feed pipe 121 located in the screw pusher sleeve 11 is provided with a material distribution chamber 123, and the material distribution chamber 123 is provided with a number of outlets extending out of the screw pusher sleeve 11. 1231, when the material distribution chamber 123 rotates with the rotation of the feed pipe 121, the liquid in the material distribution chamber 123 is thrown out through the discharge port 1231, and the discharge port 1231 is distributed along the spiral line on the outer wall of the material distribution chamber 123, When the distribution chamber 123 rotates, the liquid is thrown out from multiple directions, which increases the discharge speed of the liquid. At this time, the impurities are thrown to the inner wall of the outer drum 1 for accumulation, and the lighter liquid is thrown close to the screw pusher. The position of the sleeve 11, the screw pusher sleeve 11 is provided with a spiral piece 111, and the large end cover 13 is provided with a differential device 131 that drives the screw pusher sleeve 11 to rotate, and the differential device 131 is a screw pusher sleeve The rotation of the drum 11 provides a differential speed with a large torque, which is beneficial to the continuous transportation of materials. The two ends of the outer drum 1 are provided with a slag discharge port 14 and a liquid outlet 15. The spiral piece 111 transports impurities to the slag discharge port 14, which is relatively fast. The light liquid flows towards the liquid outlet 15. In order to avoid impurities from accumulating at the slag discharge port 14, several screw pitches are provided at the position where the screw pusher sleeve 11 is located at the slag discharge port 14 and gradually decrease in the direction away from the screw blade 111. The second spiral piece 112 makes the second spiral piece 112 start to collect impurities, and then the impurities are gradually transported to the slag discharge port 14, reducing the accumulation of impurities at the slag discharge port 14 and facilitating the discharge of impurities. The process of discharging impurities will also push the lighter liquid to the slag discharge port 14. The second screw 112 is provided with a number of permeable holes 1121 on the outer wall of the screw pusher sleeve 11, so that the lighter liquid can flow out of the second screw 112. , and blocked the outflow of impurities, thereby reducing the discharge of lighter liquid from the slag outlet 14.

Referring to Figure 1 and Figure 2, in addition, the screw pusher sleeve 11 is provided with a retaining net 113 between the first screw piece 111 and the second screw piece 112 to prevent impurities from moving away from the slag discharge port 14, which reduces the flow of impurities along with the liquid. Moving away from the slag discharge port 14, the baffle 113 is conducive to the flow of lighter liquid; the end of the baffle 113 away from the screw pusher sleeve 11 is hinged with a baffle 1131 extending away from the slag discharge port 14, reducing impurities Falling to the side of the baffle 113 away from the slag discharge port 14, when the impurities fall on the baffle 1131, the baffle 113 is provided with a limit post 1132 that restricts the rotation of the baffle 1131 to the direction of the screw pusher sleeve 11. When impurities accumulate on the side of the baffle 1131 facing the screw pusher sleeve 11, the baffle 113 is provided with a tension spring 1133 that makes the baffle 1131 perpendicular to the baffle 113, and the gravity of the impurities pushes the baffle 1131 away from the screw. The material sleeve 11 is pushed in the direction to stretch the tension spring 1133 to make it have elastic force, which is beneficial to the discharge of impurities. When the impurities are discharged from the baffle plate 1131, the elastic force of the tension spring 1133 drives the baffle plate 1131 to push the baffle plate 1131 closer to the screw. The material sleeve 11 moves until it interferes with the limit post 1132 .

Referring to Figure 1 and Figure 2, when impurities are discharged from the slag discharge port 14, a wear-resistant pad 141 is provided on the inner wall of the slag discharge port 14, which reduces the wear of the impurities on the slag discharge port 14, in order to strengthen the wear-resistant pad 141 and discharge The connection of the inner wall of the slag outlet 14, the outer wall of the wear-resistant pad 141 is provided with an annular stopper 143 extending into the inner wall of the slag outlet 14, which reduces the wear-resistant pad 141 falling off from the slag outlet 14 during long-term use; Impurities will impact on the inner wall of the slag outlet 14 when the slag outlet 14 is discharged, so the side of the wear-resistant pad 141 away from the inner wall of the slag outlet 14 is provided with a muffler pad 142, which reduces the generation of noise.

The specific operation process: when the differential 131 drives the screw pusher sleeve 11 to rotate, the screw pusher sleeve 11 drives the feed pipe 121 to rotate through the connecting block 122, and now the feed pipe 121 drives the distribution chamber 123 to rotate together, and then The liquid that enters the material distribution chamber 123 through the feed pipe 121 is thrown out through the discharge port 1231. At this time, the impurities are thrown to the inner wall of the outer drum 1 for accumulation, and the lighter liquid is thrown close to the screw pusher sleeve. The position of the cylinder 11, the spiral piece 111 outside the screw pusher sleeve 11 rotates with the rotation of the screw pusher sleeve 11, and then pushes the impurities to the slag discharge port 14, and the lighter liquid is discharged from the liquid outlet 15 , when the impurity is pushed to the position close to the slag discharge port 14, the impurity enters into the second screw 112, and the second screw 112 accelerates the discharge of the impurities, and the process of discharging the impurities by the second screw 112 will also discharge the lighter liquid To the slag discharge port 14, the lighter liquid flows to the liquid outlet 15 through the permeable hole 1121 on the second screw piece 112, reducing the discharge of lighter liquid from the slag discharge port 14.

This specific embodiment is only an explanation of the utility model, and it is not a limitation of the utility model. After reading this description, those skilled in the art can make modifications to the embodiment without creative contribution according to needs, but as long as it is within the utility model All new claims are protected by patent law.

Claims (6)

1. a kind of rotary drum of horizontal centrifuge, including one end of concentric fit are the outer drum of taper（1）Pushed away with the spiral in it Expect sleeve（11）, the outer drum（1）Small end cover is provided with the side for having taper（12）, the other end is provided with big end cap（13）, institute State small end cover（12）Upper bearing (metal), which is connected with, stretches into spiral pusher sleeve（11）Internal feed pipe（121）, the feed pipe（121） Outer wall is provided with and spiral pusher sleeve（11）The contiguous block being fixedly connected（122）, the feed pipe（121）Positioned at spiral pusher set Cylinder（11）Interior one end is provided with sub-material room（123）, the sub-material room（123）Provided with some stretching spiral pusher sleeves（11）'s Discharging opening（1231）, the spiral pusher sleeve（11）It is externally provided with flight one（111）, the big end cap（13）Provided with driving Spiral pusher sleeve（11）The differential mechanism of rotation（131）, the outer drum（1）Two ends be provided with slag-drip opening（14）And liquid outlet （15）, it is characterised in that：The spiral pusher sleeve（11）Positioned at slag-drip opening（14）Position provided with some pitch gradually to remote From flight one（111）The flight two that direction reduces（112）, the flight two（112）Close to spiral pusher sleeve （11）Some permeable holes are offered on outer wall（1121）.

2. the rotary drum of horizontal centrifuge according to claim 1, it is characterised in that：The spiral pusher sleeve（11）In spiral shell Blade one（111）With flight two（112）Between provided with stopping impurity to away from slag-drip opening（14）The backstop of direction movement （113）.

3. the rotary drum of horizontal centrifuge according to claim 2, it is characterised in that：The backstop（113）Pushed away away from spiral Expect sleeve（11）One end be hinged it is oriented away from slag-drip opening（14）The baffle plate of direction extension（1131）, the backstop（113）On set Restricted baffle plate（1131）To spiral pusher sleeve（11）The limited post that direction is rotated（1132）, the backstop（113）It is provided with So that baffle plate（1131）With backstop（113）Vertical extension spring（1133）.

4. the rotary drum of horizontal centrifuge according to claim 1, it is characterised in that：The discharging opening（1231）In sub-material room （123）Outer wall is distributed along helix.

5. the rotary drum of horizontal centrifuge according to claim 1, it is characterised in that：The slag-drip opening（14）Inwall is provided with resistance to Mill pad（141）, the wear-resistant pad（141）Away from slag-drip opening（14）The side of inwall is provided with silencer pad（142）.

6. the rotary drum of horizontal centrifuge according to claim 5, it is characterised in that：The wear-resistant pad（141）Outer wall is provided with Stretch into slag-drip opening（14）The annular stop block of inwall（143）.