37results about How to "Reduce the cost of sand making" patented technology

The invention relates to a casting mold of a conical sand maker breaking wall and a casting process capable of achieving the effect of no shrinkage cavity and effectively improving the cast density during casting feeding of the conical sand maker breaking wall. The casting mold is characterized in that the height of a breaking wall forming mold cavity in the sand box is smaller than the height of a casting riser or the volume of the forming mold cavity is smaller than the volume of the casting riser. The casting process comprises the following steps: casting high chromium cast iron into the breaking wall forming mold cavity and the casting riser, then suspending the sand box on a high-frequency vibration platform for high-frequency vibration, and cooling to obtain the high chromium cast iron breaking wall with a high density. The casting mold and the casting process have the advantages that firstly, the wear resistance of the high chromium cast iron breaking wall is effectively improved, and the sand making cost is greatly reduced; secondly, the feeding effect is good, the cast is high in density, and the occurrence of damage phenomenon is avoided; and thirdly, the wear resistance, the shock resistance and the service life are increased by nearly 5 times, and unexpected technical effects are achieved.

The invention relates to a rolling mortar wall of a conical sand making machine and a manufacturing method, wherein the rolling mortar wall of the conical sand making machine is made of Mn13 and high-chromium iron, not only can meet the wear-resistant requirement of aggregate crushing , but also can meet the wear-resistant requirement of rolling for sand making during a sand making process, the upper part of a rolling mortar wall is made of Mn13, the lower part of the rolling mortar wall is made of the high-chromium iron, and the upper part of the rolling mortar wall and the lower part of the rolling mortar wall are in concave-convex casting matching. The rolling mortar wall provided by the invention has the advantages as follows: firstly, the rolling mortar wall fundamentally overcomes the critical defect of incapability of making sand due to the formation of a groove formed by rolling a sand making cavity since the abrasion at the upper part of the rolling mortar wall is small and the abrasion at the lower part of the rolling mortar wall is large due to different abrasion losses, caused by stones with different specifications, to the rolling mortar wall during the sand making process by the rolling mortar wall made of the single material; secondly, the abrasion losses, produced during stone crushing, by Mn13 at the upper part of the rolling mortar wall, is relatively in accordance with the abrasion loss caused by that the lower part of the high-chromium iron rolling mortar wall rolls the sand making cavity, so that the condition of groove formation caused by that the abrasion loss produced when the lower part of a rolling mortar wall made of a single material rolls a sand making cavity during rolling for a sand making process, is larger than the abrasion loss of the upper part of the rolling mortar wall can be avoided.

The invention relates to a cone sand making machine, which can not only meet the wear-resisting requirements of gravel crushing but also meet the wear-resistant requirements of crushing sand during the sand making process. The cone is composed of high manganese steel and high carbon chromium steel The rolling mortar wall of the sand making machine and its manufacturing method, the upper part of the rolling mortar wall is made of high manganese steel, and the lower part of the rolling mortar wall is made of high carbon chromium steel. Advantages: First, it fundamentally solves the problem that the upper part of the rolling mortar wall wears less and the lower part of the rolling mortar wall wears less due to the different amounts of wear on the rolling mortar wall caused by different specifications of stone materials during the sand making process. The fatal flaw of the sand-pressing chamber is that grooves are formed in the shape of the rolling sand-pressing chamber; the second is that the wear amount of the high-manganese steel on the upper part of the rolling mortar wall when crushed stones is different from that of the high-carbon chromium steel rolling sand-pressing chamber on the lower part of the mortar wall. The amount of wear is relatively consistent, so it fundamentally solves the situation that the groove caused by the wear amount of the lower part of the rolling mortar wall is greater than the wear amount of the upper part of the rolling mortar wall during the sand rolling process of the single material rolling mortar wall.

The invention relates to a high-frequency vibration casting mold of a conical sand maker breaking wall and a casting process capable of achieving the effect of no shrinkage cavity and effectively improving the cast density during casting feeding of the conical sand maker breaking wall. The high-frequency vibration casting mold is characterized in that a sand box is located on a high-frequency vibration platform; and the height of a breaking wall forming mold cavity in the sand box is smaller than the height of a casting riser or the volume of the forming mold cavity is smaller than the volume of the casting riser. The casting process comprises the following steps: casting high chromium cast iron into the breaking wall forming mold cavity and the casting riser, then carrying out high-frequency vibration on the high-frequency vibration platform, and cooling to obtain the high chromium cast iron breaking wall with a high density. The high-frequency vibration casting mold and the casting process have the advantages that firstly, the wear resistance of the high chromium cast iron breaking wall is effectively improved, and the sand making cost is greatly reduced; secondly, the feeding effect is good, the cast is high in density, and the occurrence of damage phenomenon is avoided; and thirdly, the wear resistance, the shock resistance and the service life are increased by nearly 5 times, and unexpected technical effects are achieved.

The invention relates to a production line for producing sand, which comprises a feeding machine, sand producing machines, a sand washer and sedimentation tanks, wherein the number of the sand producing machines is N, and N is an integral number not less than 1; feed inlets are formed in the sand producing machines; the feed inlets comprise stone inlets and water inlets; the feeding machine is respectively connected with the feed inlets of the N sand producing machines; the feed inlets of the N sand producing machines are respectively connected with the sedimentation tanks through pipelines; discharge outlets of the N sand producing machines are respectively connected with the sand washer; the sand washer is connected with the sedimentation tanks through pipelines. According to the invention, a cyclically utilized production line is formed, on one hand, the sand producing efficiency is improved, and the sand producing cost is reduced, and on the other hand, noise, dust and sewage pollution during the sand producing process are reduced, various intermediate products are enabled to be fully utilized, and the requirements of the present market are satisfied.

The invention relates to a conical sand making machine with a diameter of less than 2000mm which can meet the wear resistance requirements of crushed stone and the wear resistance requirements of rolling sand during the sand making process. The assembly and the manufacturing method include a rolling mortar wall and a crushing wall, the upper part of the rolling mortar wall is made of Mn13, the lower part of the rolling mortar wall is made of high-chromium cast iron; the upper part of the broken wall is made of Mn13, and the lower part of the broken wall is made of high-chromium cast iron. Advantages: First, in the sand making process of single material rolling mortar wall and crushing wall, due to the different wear of different specifications of stone on the rolling mortar wall and crushing wall, the wear of the rolling mortar wall and the upper part of the crushing wall is small, The fatal defect of rolling sand cavity to form grooves and unable to make sand due to the large wear of the lower part; the second is that the wear amount of Mn13 on the upper part of the rolling mortar wall and the crushing wall in the crushed stone is the same as that of the high chromium cast iron in the lower part of the rolling mortar wall. The wear amount of the crushed sand cavity is relatively consistent, which greatly prolongs the service life of the rolling mortar wall and the crushing wall.

The invention relates to a crushing wall of a conical sand making machine and a manufacturing method, wherein the crushing wall of the conical sand making machine is made of high manganese steel and high-carbon chromium steel, not only can meet the wear-resistant requirement of aggregate crushing, but also meets the wear-resistant requirement of rolling for sand making during a sand making process, the upper part of the crushing wall is made of the high manganese steel and the lower part of the crushing wall is made of the high-carbon chromium steel. The crushing wall provided by the invention has the advantages as follows: firstly, the crushing wall of the conical sand making machine fundamentally overcomes the critical defect of incapability of making sand due to the formation of a groove in a rolling sand making cavity, caused by small abrasion at the upper part of the crushing wall and the large abrasion at the lower part of the crushing wall since abrasion losses, caused by stones with different specifications, to the crushing wall are different during a sand making process by the crushing wall made of the single material; secondly, the abrasion loss of the high manganese steel at the upper part of the crushing wall is relatively in accordance with the abrasion loss caused by that the lower part of the high-carbon chromium steel crushing wall rolls the sand making cavity.

The invention relates to a sand making technology of sandstone, which comprises the steps of taking a material, breaking, screening, and performing stone and powder separation, wherein in the step of taking the material, limestone with the particle size below 50mm is selected; in the step of breaking, the limestone with the particle size below 50mm is put in a sand making machine, and clear water with the volume more than three times that of the limestone is added, mixed and smashed; in the step of screening, a smashed mixture is put in a screening machine for screening treatment; and in the step of the stone and powder separation, the screened mixture is subjected to water washing to form finished sand. According to the sand making technology, the high-quality artificial sand is manufactured; hardware consumption in a sand making process is reduced greatly; the sand making efficiency is improved; the sand making cost is lowered; noise and dust pollution in the sand making process are reduced; and a requirement of a market at present is met.

The invention relates to a cone sand maker two-component crushing wall being smaller than 2000 mm in diameter and a manufacturing method, and aims to meet not only the abrasion-resistant requirement of stone crushing but also the abrasion-resistant requirement of rolling-based sand making during a sand making process. The upper part and the lower part of the cone sand maker two-component crushing wall are made of high manganese steel and high-carbon chromium steel respectively. The cone sand maker two-component crushing wall has the following advantages: (1) the fatal defect that sand making cannot be performed during the sand making process because a single material rolling mortar wall suffers different abrasion losses from different sized stones, the upper part of the single material rolling mortar wall is slightly abraded while the lower part thereof is seriously abraded, and a groove is formed in a rolling-based sand making cavity can be fundamentally overcome; (2) the abrasion loss caused by high manganese steel at the upper part of the cone sand maker two-component crushing wall during the stone crushing process is relatively consistent with that of the rolling-based sand making cavity in the high-carbon chromium steel lower part of the cone sand maker two-component crushing wall.

The invention relates to a conical sand making machine with a diameter of less than 2000mm and a two-component rolling cone sand making machine which can meet the wear-resistant requirements for crushing crushed stones and meet the wear-resistant requirements for crushing sand during the sand making process. The mortar wall and its manufacturing method are as follows: the upper part of the rolled mortar wall is made of high manganese steel, and the lower part of the rolled mortar wall is made of high carbon chromium steel. Advantages: First, it fundamentally solves the problem that the upper part of the rolling mortar wall wears less and the lower part of the rolling mortar wall wears less due to different specifications of stones on the rolling mortar wall during the sand making process. The fatal flaw of the sand-pressing chamber is that grooves are formed in the shape of the rolling-pressed sand chamber; the second is that the wear amount of the high-manganese steel on the upper part of the rolling mortar wall when crushing stones is different from that of the high-carbon chromium steel rolling-mortar wall on the lower part of the sand-pressing chamber. The amount of wear is relatively consistent, so it fundamentally solves the situation that the groove caused by the wear amount of the lower part of the rolling mortar wall is greater than the wear amount of the upper part of the rolling mortar wall during the sand rolling process of the single material rolling mortar wall.

The invention relates to a double component rolling sand making cavity assembly for a cone sand making machine and a manufacturing method. The upper part of the rolled mortar wall is made of Mn13, the lower part of the rolled mortar wall is made of high-chromium cast iron, and a ring-shaped groove is formed in the outer wall or the inner wall at the lower part of the rolled mortar wall, and is in concave-convex fusion casting coordination with a ring-shaped groove formed in the inner wall or the outer wall at the upper part of the rolled mortar wall; the upper part of a crushing wall is made of Mn13, the lower part of the crushing wall is made of high-chromium cast iron, and a ring-shaped groove is formed in the outer wall or the inner wall at the lower part of the crushing wall, and is in concave-convex fusion casting coordination with a ring-shaped groove formed in the inner wall or the outer wall at the upper part of the crushing wall. The double component rolling sand making cavity assembly has the advantages that 1, the critical defects that in the sand making process on the rolled mortar wall and the crushing wall which are made of a single material, the abrasion losses on the rolled mortar wall and the crushing wall by stone materials in different specifications are different, so that the upper parts of the rolled mortar wall and the crushing wall are slightly abraded while the lower parts of the rolled mortar wall and the crushing wall are seriously abraded, then a groove is formed in a rolling sand making cavity, and the sand cannot be made, are solved radically; 2, the abrasion loss of the Mn13 at the upper parts of the rolled mortar wall and the crushing wall when the stone materials are crushed is in relative accordance with the abrasion loss of the rolling sand making cavity at the lower part of the high-chromium cast iron rolled mortar wall.

The invention relates to a rolling cavity assembly of a conical sand making machine and a manufacturing method, wherein the rolling cavity assembly of the conical sand making machine is made of Mn13 and high-carbon chromium steel, not only can meet the wear-resistant requirement of aggregate crushing, but also can meet the wear-resistant requirement of rolling for sand making during a sand making process, the upper part of a rolling mortar wall is made of Mn13, the lower part of the rolling mortar wall is made of the high-carbon chromium steel, and the upper part of the rolling mortar wall and the lower part of the rolling mortar wall are in concave-convex casting matching; the upper part of a crushing wall is made of the Mn13 and the lower part of the crushing wall is made of the high-carbon chromium steel, and the upper part of the crushing wall and the lower part of the crushing wall are in concave-convex casting matching. The rolling cavity assembly provided by the invention has the advantages as follows: firstly, the rolling cavity assembly overcomes the critical defect of incapability of making sand due to the formation of a groove formed by rolling a sand making cavity since the abrasion at the upper part of the rolling mortar wall and the crushing wall is small and the abrasion at the lower part of the rolling mortar wall and the crushing wall is large due to different abrasion losses, caused by stones with different specifications to the crushing wall during the sand making process by the rolling mortar wall and the crushing wall made of the single material ; secondly, the abrasion losses, produced during stone crushing, by Mn13 at the upper parts of the rolling mortar wall and the crushing wall, is relatively in accordance with the abrasion loss caused by that the lower part of the high-carbon chromium steel rolling mortar wall rolls the sand making cavity.